Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
304 Cards in this Set
- Front
- Back
|
What are electromagnetic waves?
|
It is the form of energy that can travel through space.
|
|
|
What is radiation?
|
It is the direct transfer by electromagnetic waves.
|
|
|
What is infared radiation?
|
It is the form of energy with wavelengthsthat are longer than red light.
|
|
|
What is ultraviolet radiation?
|
It is the form of energy with wavelengths shorter than visible light.
|
|
|
What is scattering?
|
It is the reflection of light in all directions.
|
|
|
What energy travels to Earth from the sun as electromagnetic waves contain mostly?
|
It mostly contains visible light, infared radiation, and ultra violet radiation.
|
|
|
Visible light is a form of all those colors that form in what?
|
In rainbows.
|
|
|
What is the longest wavelength?
|
It's red.
|
|
|
What is the shortest wavelength?
|
It's violet.
|
|
|
When Earth's surface is what it radiates some of the energy back into the atmosphere as infared radiation?
|
When Earth's surface is heated.
|
|
|
What is thermal energy?
|
It is the total amount of molecules in a substance?
|
|
|
What is temperature?
|
It is the average amount of energy of motion each molecule of a substance.
|
|
|
What is heat?
|
It is the energy transferd from a hotter object to a cooler one.
|
|
|
What is a thermometer?
|
It is a thin glass tube with a bulb one end that contains a liquid, usually mercury or colored alcohol.
|
|
|
What is conduction?
|
It is the direct transfer of heat from one subtancs to another that is touching.
|
|
|
What is convection?
|
It is the direct transfer of heat by the movement of fluid.
|
|
|
What are gases made of?
|
They are made of small particles, called molecules.
|
|
|
The faster the molecules are moving the more what do they have?
|
They have more energy.
|
|
|
Air temperature is usually measured with what?
|
With a theramometer.
|
|
|
How many and what are the ways that heat is transfered?
|
There are three ways that heat is tranfered. It is transfered by radiation, conduction, and convection.
|
|
|
What is wind?
|
It is the horizontal movement of air from an area of high pressure to an area of lower pressure.
|
|
|
What is an anemometer?
|
It is an instrument used to measure wind speed.
|
|
|
What is wind-chill factor?
|
It is increased cooloing that wind can cause.
|
|
|
What are local winds?
|
Local winds are winds that blow over short distances?
|
|
|
What is sea breeze? What is land breeze?
|
Sea breezes are winds that blow from an ocean or a lake onto land.
Land breezes blow from land to a body of water. |
|
|
What is a monsoon?
|
A monsoon are sea and land breezes over a large region that change directions over seasons.
|
|
|
What are gobal winds?
|
They are winds that blow steadily from specific directions over long distances.
|
|
|
What is the Coriolis Effect?
|
The Coriolis Effect is the way Earth's rotaion makes winds curve.
|
|
|
What is latitude?
|
It is the distance from the equater, measured in degrees.
|
|
|
What a jet stream?
|
They are about ten kilometers above Earth's surface and have bands of high speed winds.
|
|
|
What is the troposphere?
|
It is the lowest layer of Earth's atmosphere, where weather ocurr.
|
|
|
What is the stratosphere?
|
It is the seccond lowest layer of Earth's surface?
|
|
|
What is the mesosphere?
|
It is the middle layer of Earth's atmosphere, most meteoroids burn up here.
|
|
|
What is the thermosphere?
|
It is the outermost layer of Earth's atmoshere.
|
|
|
What is the ionosphere?
|
It is the lower part of the It is the lowest part of the thermosphere, where electricity charged particlescalled ions are found.
|
|
|
What are aurora borealises?
|
They are colorful, glowing display in the sky caused when particles from the sun strike nitrogen and oxygen atoms in the ionsphere; also called Northern Lights.
|
|
|
What is the exosphere?
|
It is the outer layer of the thermosphere, extanding outward into space.
|
|
|
What do the exosphere and the ionosphere have in common?
|
They are both parts of the thermosphere.
|
|
|
When you rise up through the atmosphere, what and what change dramatically?
|
The temperature and the air pressure both change dramatically as you rise through the atmosphere.
|
|
|
As alitude increases in the trposphere the temperature what?
|
It decreases.
|
|
|
Ozone is ----------
|
It is a form of oxygen with three oygen atoms in each molecule
|
|
|
Increased amounts of carbon dioxide in Earth's atmosphere may lead to -----------
|
It leads to less of a greenhouse effect.
|
|
|
Earth's atmosphere traps energy from the sun which ------------
|
It allows water to exist as a liquid.
|
|
|
The layer in the atmosphere in which weather occurs ------
|
It's the troposphere.
|
|
|
What is thick, brownish haze formed when certain gases react in sunlight?
|
It is photochemical smog.
|
|
|
What is the major source of photochemical smog?
|
It is gases emitted by automobiles and trucks.
|
|
|
As you rise farther in the atmosphere, air pressure -----
|
It decreases.
|
|
|
The two most abundant gases in the atmosphere are --------
|
They're nitrogen and oxygen.
|
|
|
Water vapor is water in the form of ----------
|
It's water vapor in the form of a gas.
|
|
|
Density can be determined using ---------
|
It can be determined by Mass/Volume.
|
|
|
What is evaporation?
|
It is the process by which water molecules in liquid water escape into the air as water vapor.
|
|
|
What is humidity?
|
It is the measure of the amount of water vapor in the air.
|
|
|
What is relative humidity?
|
It is the percentage of water vapor in the air compared to the maximum amount the air could hold.
|
|
|
What is a phychrometer?
|
It is an instrument used to measure relative humidity consisting of a wet bulb thermometerand a dry bulb thermometer.
|
|
|
What is condensation?
|
It is the process by which molculesof water vapor in the air become liquid water.
|
|
|
What is the dew point?
|
It is the temperature at which condensation begins.
|
|
|
What is cumulas?
|
They are clouds that look like fluffy, rounded piles of cotton.
|
|
|
What is stratus?
|
They are clouds that form in flat layers.
|
|
|
What are cirrus?
|
They are wispy, feathery clouds.
|
|
|
Water is contantly moving between Earth and the atmospherein the water ------
|
In the water cycle.
|
|
|
What is precipation?
|
It is any form of water that fallsfrom clouds and reaches Earth's surface.
|
|
|
What is a rain gauge?
|
It is an open ended can or tube that contains rainfall.
|
|
|
What is a drought?
|
They are long periods of unusually low precipitation.
|
|
|
Common types of precipitaion include ----------
|
It includes rain, sleet, freezing rain, hail, and snow.
|
|
|
Rain is measured with a -----
|
It's measured with a rain gauge.
|
|
|
Scientists have used cloud seeding to produce rain and to clear fog from ----------
|
From airports.
|
|
|
Each snowflake has ------- sides.
|
They have 6.
|
|
|
Hai forms only inside cumulonimbus clouds during ---
|
During thunderstorms.
|
|
|
The most common types of precipitation is --------
|
Is rain.
|
|
|
Droughts may cause crops to fail and widespread hunger, or --------
|
Or famine.
|
|
|
What is matter?
|
It is anything that has mass and takes up space.
|
|
|
What is energy?
|
It is the abilityto do work or cause change.
|
|
|
What is chemistry?
|
It is the study of the properties of matter and how matter changes.
|
|
|
What is a substance?
|
It is a single kind of matter that has distinct phyical and chemical properties.
|
|
|
What is a physical property? What is a chemical property?
|
A physical property is charateristic f a substance that can be observed without changig the substance into something else. A chemical property is a charateristic that is observed when a substance interacts with another substance.
|
|
|
What is an element?
|
It is a substance that can not be broken down into any other substances by chemical or physical means.
|
|
|
What is a compound?
|
It is a substance made of two or more elements chemically combined in a set ratio, or proprotion.
|
|
|
What is a mixture?
|
It is made from two or more substances.
|
|
|
What is a state?
|
They're forms.
|
|
|
What is a physical change? What is a chemical change?
|
A physical change is a change that alters the form or appearance of a material into another substance? A chemical change is a change in matter that produces new substances.
|
|
|
Energy is always involved when chaneges in matter -----.
|
Occur.
|
|
|
------ can be classified as elements, compounds or mixtures.
|
Matter can.
|
|
|
Physical and chemical changes are the two basic ways that matter can ------.
|
Matter can change.
|
|
|
Matter has three principal states, or forms,-----, ------, and ---.
|
Solid, liquid, and gas.
|
|
|
Ice changing state to liquid water is a -------- change.
|
Physical.
|
|
|
One of the major forms of energy is -----.
|
Mechanical energy, thermal energy, electromagnetic energy, electrical energy, or chemical energy.
|
|
|
One of the major forms of energy is -----.
|
Mechanical energy, thermal energy, electromagnetic energy, electrical energy, or chemical energy.
|
|
|
One of the major forms of energy is -----.
|
Mechanical energy, thermal energy, electromagnetic energy, electrical energy, or chemical energy.
|
|
|
One of the major forms of energy is -----.
|
Mechanical energy, thermal energy, electromagnetic energy, electrical energy, or chemical energy.
|
|
|
One of the major forms of energy is -----.
|
Mechanical energy, thermal energy, electromagnetic energy, electrical energy, or chemical energy.
|
|
|
What is weight?
|
Measure of the force of gravity on whatever you're talking about.
|
|
|
What is mass?
|
Measurement of how much matter it contains.
|
|
|
What is the International System Of Units?
|
To measure the properties of matter, scientists use a system of units.
|
|
|
What is volume?
|
Amount of space that matter contains.
|
|
|
What is density?
|
Physical property that relates the mass and volume of an object or material.
|
|
|
What does SI stand for?
|
International System Of Units.
|
|
|
How do you say grams per cubic centimeter with letters only?
|
g/cm.
|
|
|
There are ---- ways to mesure matter.
|
Many.
|
|
|
How is kilogram said with letters only?
|
kg.
|
|
|
How is gram said with letters only?
|
g.
|
|
|
What is electrolysis?
|
Last step in the process of obtaining copper.
|
|
|
What is an electrode?
|
Two medal strips.
|
|
|
Where is gold usually found?
|
In nature.
|
|
|
Gold is found in nature as an -------.
|
As an element.
|
|
|
Earth contains -------- of many elements.
|
Earth contains deposits.
|
|
|
Finish this statement. Earth contains deposits of many elements.
|
Earth contains deposits of many elements in the form of compounds.
|
|
|
A -------- -------- is needed to remove an element from it's compound.
|
A chemical reaction.
|
|
|
A chemical reaction is needed to remove an element from it's -------.
|
It's compound.
|
|
|
A rock that contains a medal or or other economically or other useful elements is called ---.
|
It's called an ore.
|
|
|
Gold can be separated from other materials in a mixture becuase of it's -------.
|
Because of it's density.
|
|
|
What is an atom?
|
The smallest particle of an element.
|
|
|
What is the necleus?
|
Tiny, centural core of an atom.
|
|
|
What is a proton?
|
A positve electric charge.
|
|
|
What is a neutron?
|
It has no positive electric charge. These are always neutral.
|
|
|
What is an electron?
|
Particle that moves in space around the necleus. These have very electric charges.
|
|
|
What is a molecule?
|
Two or more atoms that are bonded together from a particle.
|
|
|
What is chemical bond?
|
Force that holds two atoms together.
|
|
|
Atoms can be into molecules, which are held together by -------- -----.
|
By chemical bonds.
|
|
|
Dalton stated that atoms are -----------, ----- spears. He also said that atoms of different elements are --------- from one another.
|
Unbreakable, rigid spears, different.
|
|
|
Although atoms are the smallest partcle of an element, they are broken down into ------- parts.
|
Into smaller parts.
|
|
|
What is an air mass?
|
A huge body of air that has simular temperature, humidity, and air pressure throughout it.
|
|
|
What is tropical?
|
Warm air masses.
|
|
|
What is polar?
|
Cold air masses.
|
|
|
What is maritime?
|
Air masses.
|
|
|
What is continental?
|
Air masses that are dry.
|
|
|
What is a front?
|
The area where the air masses meet and do not mix.
|
|
|
What is occluded?
|
Warm air masses is cut off.
|
|
|
What is cyclone?
|
A swirling center of low air pressure.
|
|
|
what is an anticyclone?
|
High-pressure centers of dry air.
|
|
|
Cyclones and decreasing air pressure are associated with storms and -------------.
|
Storms and precipitation.
|
|
|
What is a storm?
|
Violent disturbance in the atomsphere.
|
|
|
What is lightning?
|
A sudden spark or energy change.
|
|
|
What is a tornado?
|
Rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch Earth's surface.
|
|
|
what is a hurricane?
|
A tropical storm that has winds of 119 kilometers per hour or higher.
|
|
|
What is strom surge?
|
A dome of water that sweeps across the coast where the hurricane lands.
|
|
|
What does evacuate mean?
|
Move away temporarily.
|
|
|
Snow falls when humid air cools below -C.
|
0 degrees C.
|
|
|
If you are cuaght in a snow storm, try to find ------- from the wind.
|
Try to find shelter.
|
|
|
A hurricane begins over ---- water as a low pressure area.
|
A hurricane begins over warm water.
|
|
|
Thunderstorms and tornadoes from within large ------------clouds.
|
Cunulonimbus clouds.
|
|
|
What is science?
|
Way of learning about the natural world and the knowledge gained from that process.
|
|
|
What is a scientific inquiry?
|
Diverse ways in which scientists explore problems and seek to answer questions about the natural world.
|
|
|
What is an inference?
|
Interpretation based on your observation and prior knowledge.
|
|
|
What is a hypothesis?
|
Possible explanation for observations that relate to a scientific question.
|
|
|
What is a controlled experiment?
|
Test of a hypothesis under conditions established by the scientist.
|
|
|
What is a variable?
|
One of the factors that can change in an experiment.
|
|
|
What is a manipulated variable?
|
Variable that a scientist changes.
|
|
|
What is an observation?
|
Sight, hearing, smelling and sometimes tasting to gather information.
|
|
|
What is a responding variable?
|
The variable that changes because of the manipulated variable.
|
|
|
What is data?
|
Facts, figures, and other evidence gained through observation.
|
|
|
What is a scientific theory?
|
Well tested scientific concept that explains a wide range of observations.
|
|
|
What are chemists?
|
Scientists who investigate the particles that make up everything around you and how those particles interact.
|
|
|
What are geologists?
|
Scientists who study the forces that have shaped Earth throughtout it's long history.
|
|
|
What are oceanographers?
|
Scientists who study everything from chemistry of ocean water to the shape of the ocean floor to living things in the ocean's depth.
|
|
|
What are metorologists?
|
Scientists who gather information about conditions in the atmosphere from around the world.
|
|
|
What are astronomers?
|
Some focas on the solar system, others observe stars and galaxies in an effort to understand the universe and it's history.
|
|
|
What are environmental scientists?
|
Scientists who study Earth's envirment and resources.
|
|
|
Scientists must observe ----- precautions at --- times.
|
Safety, and all.
|
|
|
The manipulated variable is the same as the ----------- variable.
|
Independent.
|
|
|
The responding variable is the same as the --------- variable.
|
Dependent.
|
|
|
What is weather?
|
Condition of Earth's atmosphere at a paticular time and place.
|
|
|
What is the atmosphere?
|
Layer of gases that surrounds the planet.
|
|
|
What is the ozone?
|
Form of oxygen that has three oxygen atoms in each molecule instead of the usual two.
|
|
|
What is water vapor?
|
Water in the form of gas.
|
|
|
Earth's atmosphere makes conditions on Earth suitable for ------ things.
|
Living things.
|
|
|
Earths atmosphere is made up of molecules of --------, oxygen, ------ -------, and water -----.
|
Nitrogen, carbom dioxide, and water vapor.
|
|
|
Earth's atmosphere is made up of molecules of nitrogen, oxygen, carbon dioxide, and water vapor, as well as some other ----- and particles of liquids, and ------.
|
Gases, and solids.
|
|
|
The amount of water vapor in the air may ----.
|
May vary.
|
|
|
Water vapor is --------- in weather.
|
Is important.
|
|
|
There may be almost no water vapor in the dessert above or polor ice ------.
|
Or polor ice sheets.
|
|
|
What is air pollution?
|
A change to the atmosphere that has harmful effects.
|
|
|
What are emissions?
|
Solid particles and gases that are realeased into the air.
|
|
|
What is photochemical smog?
|
Thick, and brownish haze formed when certain gases in the air react as sunlight.
|
|
|
What is the ozone?
|
Gases thta react in the sunlight and produce a form of oxygen.
|
|
|
What is temperature inversion?
|
A layer of warm air prevents the rising air from escaping.
|
|
|
What is acid rain?
|
Precipitation that is more acidic then normal.
|
|
|
What is the ozone layer?
|
Layer of the upper atmosphere about 30 kilometers above Earth's surface.
|
|
|
What are chlorofluorocarbons or CFCs?
|
Group of gases containing chlorine and fluoine.
|
|
|
What is the greenhouse effect?
|
Trapping of heat near Earth's surface.
|
|
|
What is global warming?
|
Predicts that the increase in carbon dioxide will cause the average temperature to continue to rise.
|
|
|
What is density?
|
The amount of mass in given volume of air.
|
|
|
What is pressure?
|
The force pushing on an area or surface.
|
|
|
What is air pressure?
|
The result of the weight of a column of air pushing down on an area.
|
|
|
What is a barometer?
|
Instrument used to measure changes in air pressure.
|
|
|
What is mercury barometer?
|
Consists of a glass tube open at the bottom end and partially filled with mercury.
|
|
|
What is an aneroid barometer?
|
An instrument that measures changes in air pressure without using liquid.
|
|
|
What is
|
The distance above sea level, the average level of the surface of the oceans..
|
|
|
Properties of air include mass, -------, and --------.
|
Density and pressure.
|
|
|
Air pressure is measured with mercury barometers and aneriod ----------.
|
Aneriod barometers.
|
|
|
Air pressure increases as altitude ---------.
|
Decreases.
|
|
|
The condition in witch a layer of warmer air prevents polluted air from rising and escaping in called _________.
|
Temperature inversion.
|
|
|
What is the thick, brownish haze formed when certain gases react in sunlight?
|
Photochemical smog.
|
|
|
Which of the following is a common indoor air pollutant? acid rain, cigarette smoke, ozone, or photochemical smog
|
Cigarette smoke.
|
|
|
What indoor air pollutant is a colorless, odorless gas that forms when wood, coal, oil or gas are incompletely burned?
|
Carbon monoxide.
|
|
|
What is the major source of photochemical smog?
|
Gases emitted by automobiles and trucks.
|
|
|
The ozone protects people from which of the following? too much ultraviolet radiation, carbon monoxide poisoning, the effects of radon, or allergies
|
Too much ultraviolet radiation.
|
|
|
The ozone layer is located ________.
|
In the upper atmosphere.
|
|
|
Desity can be determined using ________.
|
Density = Mass/Volume.
|
|
|
Air in the atmosphere has pressure because __________.
|
Air has mass.
|
|
|
The National Weather Service measures air pressure in units called _________.
|
Millibars.
|
|
|
What is an isobar?
|
Lines joining the places on the map that have the same air pressure.
|
|
|
What is an isotherm?
|
Lines joining places that have the same temperature.
|
|
|
What is a El Ni~no?
|
Warm-water event.
|
|
|
What is meteorologist?
|
Scientists who study the causes of weather and try to predict it.
|
|
|
El Ni~no events occur once every 2 to - years.
|
2 to 7 years.
|
|
|
A forecast for the weather 6 days from now is based on forecasts for all the ---- between now and then.
|
Based on forecasts for all the days between now and then.
|
|
|
A small change in the weather today can mean a ------ change in the weather a week later.
|
It can mean a larger change in the weather a week later.
|
|
|
Computers process large amounts of information quickly to help forecasters make -----------.
|
To help forecasters make predictions.
|
|
|
Techniques for predicting weather have ------- rapidly in recent years.
|
Changed.
|
|
|
Maps in newspapers are simplified versions of maps produced at the -------- Weather -------.
|
National Weather Service.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should follow instructions and perform only authorized -----------.
|
Experiments.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students must correctly protect eyes, hands, face, and body by dressing appropriately for the ---.
|
Lab.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should never remove chemicals or other materials from the ----------.
|
Labortory.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should know the location and use safty equipment such as the eye wash station, safty shower, fire extinguisher, fire blanket and first aid ---.
|
Kit.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should not eat drink or chew gum in the ----------.
|
Labortory.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should handle all living organisms in a humane matter. Perserved biological materials are to be handled and disposed of --------.
|
Properly.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should not participate in any horseplay, practical jokes, or ------.
|
Pranks.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should report all accidents or equipment malfunctions -----------.
|
Immediately.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should not taste/consume any labortory materials or ---------.
|
Chemicals.
|
|
|
In the Scientific Laboratory Agreement, this is a rule. Students should be slert and cautious at all -----.
|
Times.
|
|
|
This is a science safety rule. Finsh the sentence. Follow all written and verbal instructions carefully. Ask different --------- for clarity.
|
Questions.
|
|
|
This is a science safety rule. Finsh the sentence. Only perform authorizied lab experiments. Follow stated laboratory ---------.
|
Procedure.
|
|
|
This is a science safety rule. Finsh the sentence. Alwats work with a partner and in the -------- of the teacher.
|
Presence.
|
|
|
This is a science safety rule. Finsh the sentence. Never touch chemical, equipment or materials in the laboratory area without teacher ----------.
|
Permission.
|
|
|
This is a science safety rule. Finsh the sentence. Read laboratory procedures carefully before entering the lab. Know safety symbols used in the lab ------.
|
Manual.
|
|
|
This is a science safety rule. Finsh the sentence. Understand that practical jokes, pranks, and horseplay are not in the lab.
|
Permitted.
|
|
|
This is a science safety rule. Finsh the sentence. Keep workstations clean. Extra materials such as -------- purses, etc., should not be in the work area.
|
Backpacks.
|
|
|
This is a science safety rule. Finsh the sentence. Clear the floor around the workstation and push the chair under the desk when mot in ---.
|
Use.
|
|
|
This is a science safety rule. Finsh the sentence. Know the location and operating procedures of safety equipment including fire -------, and extinguisher, eyewash station, safety shower, first aid kit, and fire ------.
|
Blanket, and alarm.
|
|
|
This is a science safety rule. Finsh the sentence. Be alert and cautious at --- times.
|
All.
|
|
|
This is a science safety rule. Notify the teacher immediately of any ------ conditions.
|
Unsafe.
|
|
|
This is a science safety rule. Read labels and equipment instructions carefully ------ ---.
|
Before use.
|
|
|
This is a science safety rule. Use apparatus, materials, and equipment only as ----------.
|
Instructed.
|
|
|
This is a science safety rule. Keep hands away from face and eyes. ---- ----- after experiments as ---------.
|
Wash hands, and necessary.
|
|
|
This is a science safety rule. Clean and return all equipment to the proper storage area at the end of the experiment. Dispose of chemicals as ---------- by the -------.
|
Instructed, and teacher.
|
|
|
This is a science safety rule. Monitor the experiment at all times. You should not wander around the room, interferewith other experiments, or -------- others.
|
Distract.
|
|
|
This is a science safety rule. ----- go into the science ------- rooms or preparation -----.
|
Never, storage, and areas.
|
|
|
This is a science safety rule. Know exits and fire drill procedures: alcohol burners extinguished, cutting devices secured, _______________________________________________________________________________________________________________________.
|
Containers must be closed, gas valves turned off, and electrical equipment turned off.
|
|
|
This is a science safety rule. Carry shap instruments with ---- and ------ facing down and away from the ----.
|
Tips, points, and body.
|
|
|
This is a science safety rule. Know that when cutting, the ------ motions should be away from ---- ----.
|
Stroke, and the body.
|
|
|
This is a scientific safety lab rule. Hold cutting instruments by their handles only. Never try to catch falling ----- objects.
|
Sharp.
|
|
|
This is a scientific safety lab rule. wear goggles at all times When chemicals, heat, or --------- are used. Students should wear goggles until everyone has finshed and has a clean work area.
|
Glasswear.
|
|
|
This is a scientific safety lab rule. Secure long hair, be conscious of loose clothing, and remove dangling jewelry. Shoes must ---------- cover the foot.
|
Completely.
|
|
|
This is a scientific safety lab rule. Always work in a well-ventilated area. Use fume hoods when working with volatile and --------- vapors.
|
Poisonous.
|
|
|
This is a scientific safety lab rule. Report injuries or accidents or injuries such as spills, breakage, cutts, and bruises to the teacher -----------.
|
Immediately.
|
|
|
This is a scientific safety lab rule. Know that all chemical are considered dangerous. Know the proper way to smell and touch chemicals. Chemicals should never be ------.
|
Tasted.
|
|
|
This is a scientific safety lab rule. Check labels on chemicals before removing any form of container. Only a ----- amount of any chemical should be at a workstation. Unused chemicals may not be returned to the orginal container/
|
Small.
|
|
|
This is a scientific safety lab rule. Know that hot glasswear will ------- when immersed in cold -----.
|
Shatter, water.
|
|
|
This is a scientific safety lab rule. Never put materials directly into a flame ------ directed to do so.
|
Unless.
|
|
|
This is a scientific safety lab rule. never reach over an ---- flame.
|
Open.
|
|
|
This is a scientific safety rule. Always monitor flames of heat sources. Turn off heat source when not in ---.
|
Use.
|
|
|
This is a scientific safety rule. Only use a pipette with rubber ---- when using liquids.
|
Bulb.
|
|
|
This is a scientific safety rule. Hold containers away from the body when being -----.
|
Filled.
|
|
|
This is a scientific safety rule. Handle acids properly. Always add acid to water, swirl or the solution and know that ---- heat or fumes may be produced.
|
Stir.
|
|
|
This is a scientific safety rule. Handle hazardous liquids over a pan to ------ spills.
|
Contain.
|
|
|
This is a scientific safety rule. Never place flammable liquids and open flames or heat ------- near each other.
|
Sources.
|
|
|
This is a scientific safety rule. Never remove chemicals, experimental materials, or equipment from the ----------.
|
Laboratory.
|
|
|
This is a scientific safety rule. Hold chemical storage containers securely and walk carefully when ------------ them.
|
Transporting.
|
|
|
This is a scientific safety rule. Only allow teachers to handle broken glassware. Notify the teacher immediately of any breaks, chips, or ------.
|
Crackes
|
|
|
This is a scientific safety rule. Always use ----- glasswear.
|
Clean.
|
|
|
In the science safety lab agreement, this is one of the rules. Point the open end test tube away from themselves and others. Never heat a liquid in a ------ container.
|
Closed.
|
|
|
In the science safety lab agreement, this is one of the rules. Allow apparatus or materials to cool before handling them. Bring the hand close to the hot object without touching it to make sure it has ------.
|
Cooled.
|
|
|
In the science safety lab agreement, this is one of the rules. Pick up hot materials with tongs or heat protective gloves and place on heat resistant ---.
|
Pad.
|
|
|
In the science safety lab agreement, this is one of the rules. Never apply cosmetics or perform the -------- prepartions on the ----------.
|
Grooming,labortory.
|
|
|
In the science safety lab agreement, this is one of the rules. Treat all bacterial cultures as though they are ---------.
|
Pathogens.
|
|
|
In the science safety lab agreement, this is one of the rules. Use ----- suppliesthat are appropriately --------.
|
Power, grounded.
|
|
|
In the science safety lab agreement, this is one of the rules. Check cords for fraying or ------- -----.
|
Exposed wires.
|
|
|
In the science safety lab agreement, this is one of the rules. Remove a plug from a socket with dry hands by grasping the ---- not the ----.
|
Plug, cord.
|
|
|
In the science safety lab agreement, this is one of the rules. ------ and ------- of biological materials properly.
|
Handle, dispose.
|
|
|
In the science safety lab agreement, this is one of the rules. ------ all living organisms in a ------ -----.
|
Handle, humane manner.
|
|
|
What is matter?
|
Anything that has mass and takes up space.
|
|
|
What is energy?
|
Ability to do work or cause change.
|
|
|
What is chemistry?
|
Study of the properties of matter and how matter changes.
|
|
|
What is a substance?
|
Single kind of matter that has distinct phisical and chemical properties.
|
|
|
What is a physical property?
|
Characteristic of a substance that can be observed without changing the substance into something else.
|
|
|
What is a chemical property?
|
Characteristic that is observed when a substance interacts with another substance.
|
|
|
What is an element?
|
Substance that cannot be broken down into any other substances by chemical or physical means.
|
|
|
What is a compound?
|
Substance made of two or more elements chemically combined in a set ratio, or porportion.
|
|
|
What is a mixture?
|
Made from two or more substances.
|
|
|
What is a physical change?
|
Change that alters the form or appearance of a material into another substance.
|
|
|
What is a state?
|
Forms.
|
|
|
Question
What is a state? What is a chemical change? Answer Forms. Change in matter that produces new substances. Hint What is a chemical change? |
Change in matter that produces new substances.
|
|
|
What is weight?
|
Measure of the force of gravity on you.
|
|
|
What is mass?
|
Measurement of how much matter an object contains.
|
|
|
What is a precipitate?
|
Solid that forms from solution during a chemical reaction.
|
|
|
What is an endothermic reaction?
|
knid of reaction that when baking soda reacts with vinegar, the reaction takes heat away from the solution, making it fell cooler which also absorbs energy.
|
|
|
What is an exothermic reaction?
|
A reaction that releases energy in the form of heat.
|
|
|
A chemical reaction produces materials that have different properties than the starting materials had. Each reation either absorbs or -------- energy.
|
Releases.
|
|
|
Color change, production of a --- or a precipitate, a change in temperature or a change in the propertiesof a substance are all clues that a chemical reaction has ----- place.
|
Gas, and taken.
|
|
|
Chemical reactions occur when chemical bonds are formed or ------.
|
Broken.
|
|
|
Chemical reactions may be detected when cetsin kinds of changes are --------.
|
Observed.
|
|
|
Some reactions absorb energy while others -------.
|
Release.
|
|
|
What is a chemical bond?
|
Forse that holds atoms together.
|
|
|
Chemical reactions occur when chemical bonds between atoms ----- or when --- bonds ----.
|
Break, new, and form.
|
|
|
What is a pore? 3/1/09
|
Tiny openings in and between particles of rock nand soil that may contain air and water.
|
|
|
What is does permeable mean? 3/1/09
|
Characteristic of materials such as sand and water that allows water o pass easily through them.
|
|
|
What does impermeable mean? 3/1/09
|
Characteristic of materials through which water does not easily pass, such as clay and granite.
|
|
|
What is a saturated zone? 3/1/09
|
A layer of permeable rock or soil in which the cracks and pores are completely filled with water.
|
|
|
What is a water table? 3/1/09
|
The top of the saturated zone or depth to the groundwater in an aquifer.
|
|
|
What is an unsaturated zone? 3/1/09
|
A layer above the rocks and soil above the water table in which the pores contain air as well as water.
|
|
|
What is an aquifer? 3/1/09
|
An underground layer of rock or soil that holds water.
|
|
|
What is a spring? 3/1/09
|
A place where groundwater bubbles or flows out of cracks in the rocks.
|
|
|
What does recharge mean? 3/1/09
|
New water that enters an aquifer from the surface.
|
|
|
What is an artesian well? 3/1/09
|
A well in which water rises because of pressure within the aquifer.
|
