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;
46 Cards in this Set
- Front
- Back
|
In the Periodic Table, the number given below the symbol for the element is the:
A. number of protons B. atomic mass C. number of electron shells D. the atomic number |
B. atomic mass
|
|
|
A collection of observed and measureable results is called:
A. Results B. Data C. Scientific Process |
B. Data
|
|
|
A judgement based on the data gathered in an experiment is:
A. a skill B. an hypothesis C. a conclusion D. an observation |
C. a conclusion
|
|
|
A situation maintained in an experiment in which no variable conditions are introduced is:
A. control group B. experimental group |
A. Control Group
|
|
|
Graduated cylinders are marked with:
A. grams B. meters C. millimeters D. milliliters |
D. milliliters
|
|
|
To forecast an event or to anticipate the results of an experiment is called:
A.Results B.Observation C.Prediction |
C. Prediction
|
|
|
In an experiment, one examines the variable conditions in the :
A. hypothesis B. experimental group C. control group D. assimilation |
B. experimental group
|
|
|
Selected variable conditions for experimentation to support or reject a hypothesis are known as:
A. control group B. experimental group |
B. Experimental Group
|
|
|
The length of your pencil would best be measured in units of:
A. centimeters B. meters C. kilometers D. millimeters |
A. centimeters
|
|
|
A complete explanation of how or why something happens based on research and testing is known as:
A. Hypothesis B. Theory |
B. Theory
|
|
|
What is the chemical symbol for cobalt?
A. Co B. Ir C. Ag D. Si |
A. Co
|
|
|
A substance which exists alone or in some combination is:
A. a liquid B. a solid C. a gas D. matter |
D. matter
|
|
|
Grams are used to measure:
A. mass B. height C. volume D. size |
A. mass
|
|
|
Increased surface area ______ reaction rate.
A. decreases B. increases C. produces D. stops |
B. increases
|
|
|
Isotopes are atoms that have:
A. the same # of protons but a different # of neutrons B. the same # of neutrons but a different # of protons C. the same mass D. an equal # of protons and neutrons |
A. the same number of protons but a different number of neutrons
|
|
|
A form of matter which has a definite shape and volume is:
A. a solid B. a liquid C. a gas D. plasma |
A. solid
|
|
|
The energy levels in an electron cloud consist of:
A. concentration of electrons B. positive charges C. concentration of energy D. levels where no electrons are found |
A. concentration of electrons
|
|
|
A rubber band can be stretched out and will return to its original shape. This property of solids is called:
A. malleability B. viscocity C. elasticity D. mass |
C. elasticity
|
|
|
A complete scientific explanation based on experimentation and investigation will help scientists formulate a:
A. hypothesis B. law C. theory D. prediction |
C. theory
|
|
|
Substances to the left of the arrow in a chemical reaction are called:
A. catalysts B. products C. reactants D. chemical equations |
C. reactants
|
|
|
Deuterium is an isotope of hydrogen which has an atomic mass of 2. How many neutrons must a deuterium have?
A. 0 B. 2 C. impossible to know D. 1 |
D. 1
|
|
|
The molecules in gases are:
A. moving slowly B. tightly packed C. moving very fast D. macroscopic |
C. moving very fast
|
|
|
One liter is equal to:
A. 1000 mL B. 100 mL C. 10 mL D. 1000 centiliters |
A. 1000 mL
|
|
|
Some of the microscopic characteristics of matter are:
A. color, odor, and shape B. density, structure, bonding C. hardness and weight D. feel, taste, solubility |
B. density, structure, bonding
|
|
|
You should report a chemical spill to your teacher:
a. immediately b. after you've finished cleaning up the spill c. only if you think the spill if dangerous d. after you've finished the experiment so your results are not ruined |
A. immediately
|
|
|
How many neutrons do most atoms of flourine have?
A.9 B.10 C.18 D.19 |
B. 10
|
|
|
The mass of an average man would best be measured in:
A. cubic centimeters B. liters C. meters D. kilograms |
D. kilograms
|
|
|
When a substance condenses, it changes from:
A. a liquid to a solid B. a liquid to a gas C. a gas to a liquid D. a gas to a solid |
C. a gas to a liquid
|
|
|
The apple falling from the tree was basic to Issac Newton in proposing his theory about the movement of planets--an example of:
A. Inductive reasoning B. Deductive reasoning C. Extrapolation D. A theory |
B. Deductive reasoning
|
|
|
Mixing salt and sugar is a :
A. physical change B. chemical change C. new substance D. new compound |
A. physical change
|
|
|
An element that is in the same family as flourine is:
A. lithium B. boron C. chlorine D. oxygen |
C. Chlorine
|
|
|
Which elements of the Periodic Table are radioactive?
A. Elements on left of Table B. Elements w/atomic #'s >83 C. Elements w/atomic #'s <83 D. Elements on right of Table |
B. Elements with atomic numbers greater than 83
|
|
|
The amount of space an object takes up is measured by:
A. weight B. mass C. density D. volume |
D. density
|
|
|
Snow melts to form water. This is an example of:
A. new substance B. a chemical change C. a physical change D. temperature decreasing |
C. a physical change
|
|
|
In Kelvin temperature scale, water freezes at:
A. 0 K B. 180 K C. 273.15K D. -273.15K |
C. 273.15
|
|
|
An example of a chemical change is:
A. freezing B. rusting C. boiling D. condensing |
b. rusting
|
|
|
In an experiment, one examines the variable conditions in the :
A. hypothesis B. experimental group C. control group D. assimilation |
B. experimental group
|
|
|
Neon has eight electrons in its outer shell. It is a:
A. alkali metal B. alkaline earth metal C. halogen D. noble gas |
D. noble gas
|
|
|
The amount of matter in an object is called its:
A. volume B. density C. mass D. size |
C. mass
|
|
|
A cubic centimeter is equal to:
A. 1 liter B. 10 milliliters C. 10 centiliters D. 1 milliliter |
D. 1 milliliter
|
|
|
The statement, "An object fell 5 meters in 1 second." is :
A. a control B. an observation C. a conclusion D. a theory |
B. An observation
|
|
|
Gathering information through observation and experimentation is a part of:
A. deductive reasoning B. laboratory tools C. the Scientific Method D. measurements |
C. the Scientific Method
|
|
|
An element with no luster is:
A. silver B. sulfur C. zinc D. aluminum |
B. sulfur
|
|
|
The entire collection of observations and results from an experiment is called:
A. evaluation B. data C. theory D. control group |
B. Data
|
|
|
The final results of a science experiment can be summarized in a:
A. conclusion B. a written report C. graph D. all of the above |
D. All of the above
|
|
|
The volume of a liquid held in an eyedropper would best be measured in:
A. milllimeters B. milliliters C. milligrams D. cubic centimeters |
B. Milliliters
|
