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143 Cards in this Set
- Front
- Back
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Which of the following is the study of things such as rocks, weather, and objects in space?
A) life science B) physical science C) earth science D) chemical science |
C) earth science
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Which of these is a factor to which experimental results can be compared?
A) constant B) independent variable C) control D) dependent variable |
C) control
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Which is a rule that describes the behavior of something in nature?
A) hypothesis B) observation C) theory D) law |
D) law
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The process of using scientific discoveries for practical purposes is called
A) technology. B) science. C) a scientific law. D) a scientific theory. |
A) technology.
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Dr. Fred Whipple proposed that a comet was like a dirty snowball. This is an example of
A) a law. B) a hypothesis. C) a theory. D) an observation. |
B) a hypothesis.
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What type of questions cannot be solved by scientific methods?
A) difficult questions B) questions about outer space C) ethical questions D) questions about the interior of Earth |
C) ethical questions
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The test tubes in the diagram above were left at room temperature for a week to see if algae would grow. Which of the following is the constant in the experiment?
A) the amount of algae present B) the temperature of the test tube's contents C) the amount of chlorine present D) the ratio of algae to chlorine |
B) the temperature of the test tube's contents
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Which of the following is a variable in the experiment?
A) amount of chlorine used B) volume of water used C) length of time of the experiment D) temperature of the test tubes |
A) amount of chlorine used
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Which of the following can be measured using the instruments in Group B above?
A) volume B) mass C) distance D) weight |
A) volume
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Which of the following can be measured using the instruments in Group A?
A) weight B) mass C) distance D) volume |
C) distance
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Which is not used to predict weather today?
A) satellites B) mythology C) radar D) weather balloons |
B) mythology
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To ensure that you have a valid experiment, it must be __________.
A) proven correct B) repeatable C) complicated D) scientific fact |
B) repeatable
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One of the first cultures to develop instruments to study the weather was the __________.
A) British B) Americans C) Mexicans D) Italians |
D) Italians
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Why do scientists perform experiments?
A) to test the validity of a hypothesis B) because they are paid to do so C) to prove that their hypotheses are correct D) so they can draw conclusions |
A) to test the validity of a hypothesis
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What can cause an experiment to be inaccurate?
A) changing variables B) drawing conclusions C) not enough data D) forming a hypothesis |
C) not enough data
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How old is technology?
A) millions of years old B) only 25 years or so C) about a century old D) thousands of years old |
D) thousands of years old
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How often are scientific theories proved wrong?
A) They are neither proved nor disproved. B) sometimes C) never D) always |
B) sometimes
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What is the correct approach to doing science?
A) rely on mythology and stories to explain the natural world B) form your hypothesis after you have gathered data C) experiment to test a hypothesis D) draw conclusions early |
C) experiment to test a hypothesis
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What is a hypothesis?
A) a wild guess B) an experiment C) an educated guess D) a conclusion |
C) an educated guess
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Which of the following is an example of science being performed?
A) watching television B) an astronaut flying the space shuttle C) heating your room with a space heater D) discovering why salt melts ice |
D) discovering why salt melts ice
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Upon what event did the ancient Egyptians develop the first calendar?
A) when the Sun rose B) when to plant crops C) when the Moon changed D) when the snow fell |
B) when to plant crops
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The difference between a theory and a law is that ___________.
A) a law is scientific fact B) a theory describes the natural world C) a law explains the natural world D) a theory is scientific fact |
A) a law is scientific fact
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What is the first step in solving a problem in a scientific way?
A) identifying the problem B) drawing conclusions C) developing a hypothesis D) performing an experiment |
A) identifying the problem
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What is the final step in experiments?
A) developing a hypothesis B) identifying the problem C) eliminating bias D) drawing conclusions |
D) drawing conclusions
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You are conducting an experiment to discover which brand of mosquito repellent works best. In this experiment, the brand of mosquito repellent is the __________.
A) constant B) control C) independent variable D) dependent variable |
C) independent variable
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An example of a problem that science cannot solve is __________.
A) disease B) crime C) telecommunications D) travel |
B) crime
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Which topic is not studied in Earth science?
A) the solar system B) weather C) the human brain D) volcanoes |
C) the human brain
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What happens when there's bias in an experiment?
A) The hypothesis is proved wrong. B) The results are more accurate. C) Personal opinion gets in the way. D) The experiment is not repeatable. |
C) Personal opinion gets in the way.
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Why is scientific information published in journals?
A) to make scientists money B) to show how accurate a scientist's data are C) so others can build upon that knowledge D) to show that experiments on certain subjects should no longer occur |
C) so others can build upon that knowledge
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Which of the following is an example of technology?
A) fire B) weather patterns C) acid rain D) microwave oven |
D) microwave oven
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How old is technology?
A) about a century old B) only 25 years or so C) thousands of years old D) millions of years old |
C) thousands of years old
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Upon what event did the ancient Egyptians develop the first calendar?
A) when the Sun rose B) when to plant crops C) when the Moon changed D) when the snow fell |
B) when to plant crops
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What is meteorology?
A) the study of meteors B) the study of weather C) the study of space D) the study of mythology |
B) the study of weather
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The __________ was the first instrument developed to study weather.
A) barometer B) thermometer C) rain gauge D) hydrometer |
C) rain gauge
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One of the first cultures to develop instruments to study the weather was the __________.
A) Americans B) British C) Mexicans D) Italians |
D) Italians
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Which is not used to predict weather today?
A) mythology B) satellites C) weather balloons D) radar |
A) mythology
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How often are scientific theories proved wrong?
A) never B) sometimes C) always D) They are neither proved nor disproved. |
B) sometimes
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The difference between a theory and a law is that ___________.
A) a theory is scientific fact B) a theory describes the natural world C) a law explains the natural world D) a law is scientific fact |
D) a law is scientific fact
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soccer ball being kicked is an example of Newton's __________ law of motion.
A) second B) third C) fourth D) first |
D) first
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Why is scientific information published in journals?
A) so others can build upon that knowledge B) to make scientists money C) to show that experiments on certain subjects should no longer occur D) to show how accurate a scientist's data are |
A) so others can build upon that knowledge
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What is a hypothesis?
A) an experiment B) a conclusion C) a wild guess D) an educated guess |
D) an educated guess
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What is the first step in solving a problem in a scientific way?
A) developing a hypothesis B) identifying the problem C) drawing conclusions D) performing an experiment |
B) identifying the problem
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What is the goal of science?
A) to teach the scientific method B) to perform experiments C) to better understand the natural world D) to provide an education in school |
C) to better understand the natural world
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Which of the following is an example of science being performed?
A) heating your room with a space heater B) watching television C) an astronaut flying the space shuttle D) discovering why salt melts ice |
D) discovering why salt melts ice
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Which topic is not studied in Earth science?
A) the human brain B) weather C) the solar system D) volcanoes |
A) the human brain
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Why do scientists perform experiments?
A) to test the validity of a hypothesis B) so they can draw conclusions C) because they are paid to do so D) to prove that their hypotheses are correct |
A) to test the validity of a hypothesis
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You are conducting an experiment to discover which brand of mosquito repellent works best. In this experiment, the brand of mosquito repellent is the __________.
A) dependent variable B) constant C) independent variable D) control |
C) independent variable
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Why do experiments use controls?
A) to provide a standard B) to help average the data C) to prove the hypothesis D) to support any conclusions |
A) to provide a standard
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To ensure that you have a valid experiment, it must be __________.
A) proven correct B) complicated C) repeatable D) scientific fact |
C) repeatable
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What is the final step in experiments?
A) developing a hypothesis B) identifying the problem C) drawing conclusions D) eliminating bias |
B) identifying the problem
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An example of a problem that science cannot solve is __________.
A) telecommunications B) disease C) crime D) travel |
C) crime
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hat is the correct approach to doing science?
A) experiment to test a hypothesis B) draw conclusions early C) form your hypothesis after you have gathered data D) rely on mythology and stories to explain the natural world |
A) experiment to test a hypothesis
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What happens when there's bias in an experiment?
A) Personal opinion gets in the way. B) The results are more accurate. C) The hypothesis is proved wrong. D) The experiment is not repeatable. |
A) Personal opinion gets in the way.
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What can cause an experiment to be inaccurate?
A) drawing conclusions B) forming a hypothesis C) not enough data D) changing variables |
C) not enough data
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Which is NOT an example of matter?
A) air B) heat C) phone D) tree |
B) heat
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Which best explains how electrons are arranged around an atom?
A) in a cloud B) in an orbit C) clockwise D) counterclockwise |
A) in a cloud
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What is the overall charge of a neutral atom?
A) 7 B) 1 C) 0 D) -1 |
C) 0
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f an atom has 6 protons and 11 neutrons, what is its mass number?
A) 5 B) 17 C) 6 D) 12 |
B) 17
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Which type of bond can form without the interactions of electrons?
A) covalent B) hydrogen C) ionic D) metallic |
B) hydrogen
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Which is a homogeneous mixture?
A) chili B) granite C) ocean water D) salad |
C) ocean water
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Which is the most common state of matter in the universe?
A) gas B) liquid C) plasma D) solid |
C) plasma
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A glass contains liquid water. Which explains how the water particles move?
A) The particles move freely and independently. B) The particles vibrate but do not move. C) The electrons escape and move outside of the electron cloud. D) The particles can change positions with each other. |
D) The particles can change positions with each other.
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An isotope contains a different number of _______ than other atoms of the same element.
A) electrons B) neutrons C) particles D) protons |
B) neutrons
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An element is a substance that contains __________.
A) only one type of molecule B) many types of atoms C) different molecules D) only one type of atom |
D) only one type of atom
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In which of the following states of matter are the atoms and molecules farthest apart?
A) solid B) liquid C) gas D) solution |
C) gas
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What happens chemically when an apple browns?
A) Carbon dioxide interacts with the apple. B) Oxygen interacts with the apple. C) Nitrogen interacts with the apple. D) The apple loses protons. |
B) Oxygen interacts with the apple.
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Electrons carry __________.
A) a neutral charge B) no charge at all C) a negative charge D) a positive charge |
A) a neutral charge
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Which state of matter, found in stars, is most common?
A) gas B) plasma C) liquid D) solid |
B) plasma
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Two isotopes of carbon, carbon-12 and carbon-14, have different numbers of __________.
A) isotopes B) neutrons C) protons D) electrons |
B) neutrons
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An example of a physical property is __________.
A) flammability B) density C) combustibility D) ability to rust |
B) density
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Describe the electrons in a bar of gold.
A) found in the nucleus B) moving freely through the metal C) orbiting their nuclei D) being shared in covalent bonds |
B) moving freely through the metal
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Which of the following is the smallest particle that makes up all matter?
A) molecules B) cells C) isotopes D) atoms |
D) atoms
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Mass divided by volume describes __________.
A) melting point B) density C) state of matter D) how well mixed a substance is |
B) density
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The atomic number of an atom is the number of __________.
A) neutrons B) electrons C) protons and neutrons D) protons |
D) protons
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Helium has two protons and two neutrons. What is its mass number?
A) 4 B) 0 C) 22 D) 2 |
A) 4
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Electrons that are shared are called ___________.
A) bonding B) ionic C) strewn D) valence |
D) valence
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An example of a chemical property is __________.
A) melting point B) flammability C) color D) hardness |
B) flammability
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How do scientists study atoms?
A) telescopes B) microscopes C) models D) magnifying glasses |
C) models
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Protons and neutrons are found in the __________.
A) electron cloud B) orbitals C) bonds D) nucleus |
D) nucleus
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Water and alcohol contain hydrogen bonds; therefore, they have __________ molecules.
A) nonpolar B) polar C) ionic D) metallic |
B) polar
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Which is easiest to separate?
A) solution B) compound C) element D) mixture |
D) mixture
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Which state of matter do you not observe readily in your daily life?
A) liquid B) plasma C) solid D) gas |
B) plasma
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Which is an example of matter?
A) lightning B) electricity C) heat D) wood |
D) wood
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Which of the following is the smallest particle that makes up all matter?
A) atoms B) molecules C) cells D) isotopes |
A) atoms
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An element is a substance that contains __________.
A) only one type of atom B) many types of atoms C) different molecules D) only one type of molecule |
A) only one type of atom
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How do scientists study atoms?
A) microscopes B) telescopes C) models D) magnifying glasses |
C) models
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Protons and neutrons are found in the __________.
A) nucleus B) electron cloud C) orbitals D) bonds |
A) nucleus
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Electrons carry __________.
A) a positive charge B) a neutral charge C) a negative charge D) no charge at all |
C) a negative charge
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The atomic number of an atom is the number of __________.
A) neutrons B) electrons C) protons and neutrons D) protons |
D) protons
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Helium has two protons and two neutrons. What is its mass number?
A) 2 B) 0 C) 4 D) 22 |
C) 4
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Two isotopes of carbon, carbon-12 and carbon-14, have different numbers of __________.
A) protons B) neutrons C) electrons D) isotopes |
B) neutrons
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n example of a compound is __________.
A) O2 B) N2 C) CO2 D) He |
C) CO2
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Electrons that are shared are called ___________.
A) ionic B) bonding C) strewn D) valence |
D) valence
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When an ionic bond is formed, electrons are __________ another atom.
A) given to B) given to or taken from C) taken from D) destroyed in |
B) given to or taken from
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Describe the electrons in a bar of gold.
A) orbiting their nuclei B) being shared in covalent bonds C) found in the nucleus D) moving freely through the metal |
D) moving freely through the metal
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Water and alcohol contain hydrogen bonds; therefore, they have __________ molecules.
A) polar B) nonpolar C) metallic D) ionic |
A) polar
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Mud is a(n) __________ because it contains two or more substances mixed together.
A) compound B) solution C) element D) mixture |
D) mixture
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Which is easiest to separate?
A) solution B) compound C) mixture D) element |
C) mixture
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What happens chemically when an apple browns?
A) Oxygen interacts with the apple. B) Nitrogen interacts with the apple. C) Carbon dioxide interacts with the apple. D) The apple loses protons. |
A) Oxygen interacts with the apple.
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An example of a chemical property is __________.
A) color B) flammability C) melting point D) hardness |
B) flammability
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An example of a physical property is __________.
A) density B) flammability C) combustibility D) ability to rust |
A) density
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Mass divided by volume describes __________.
A) melting point B) state of matter C) how well mixed a substance is D) density |
D) density
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Which state of matter do you not observe readily in your daily life?
A) plasma B) solid C) liquid D) gas |
A) plasma
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In which of the following states of matter are the atoms and molecules farthest apart?
A) liquid B) solid C) solution D) gas |
D) gas
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Which state of matter, found in stars, is most common?
A) plasma B) solid C) liquid D) gas |
A) plasma
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What type of property is a change of state?
A) chemical B) solution C) bonding D) physical |
D) physical
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What type of energy is used to change states of matter?
A) electrical B) thermal C) magnetic D) gravitational |
B) thermal
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The smallest unit of an element that maintains the property of the element.
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atom
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Describe the current atomic model.
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Electrons surround the nucleus in electron clouds.
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This part of the atom is mostly empty space.
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electron cloud
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The mass of a neutron is equal to what?
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the mass of a proton or 1 amu
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This scientist proposed the 'plum pudding' model of the atom.
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JJ Thomson
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An atom with an uneven number of protons and electrons.
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ion
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An atom with an even number of protons and electrons but different number of neutrons.
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isotope
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The sum of protons and neutrons in the nucleus of an atom.
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mass number
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The type of ions that from when an atom gains electrons.
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anion
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An evenly blended mixture.
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homogeneous mixture (solution)
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Matter that has a fixed composition and fixed properties and are the same throughout.
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pure substance
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What happens to electrons in a covalent bond?
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shared
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The components of this are not chemically bonded together.
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mixture
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This type of bond forms between metal and non metals atoms.
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ionic
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Burnable, edible, perishable, reacts violently with H2O are examples of what?
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chemical properties
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A quality that can be observed without changing the composition of the substance.
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physical property
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Melting, cutting, denting and slicing are examples of what?
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physical changes
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This state of matter has particles with the highest energy.
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plasma
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Matter in this state spreads to fill the container it is in.
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gas
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particles in this state vibrate but have very low energy.
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solid
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This state has fixed volume but not shape.
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liquid
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Anything that has mass and takes up space is called what?
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matter
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Using the periodic table, how many elements are in group 1?
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7
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Using the periodic table, how many elements are gasses at room temperature?
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10
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Using the periodic table, what is the chemical symbol for the synthetic element in period 5?
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Te Technetium
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Using the periodic table, what is the only non metal on the left side of the periodic tables?
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H hydrogen
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Is Barium an alkaline earth metal ?
Tor F? |
T
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What is a an inert stable element with an oxidation of 0?
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Noble Gas
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Give an example of a halogen.
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Flourine, Chlorine, Bromine, Iodine, etc.
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What are very reactive elements with only one electron in the outer shell.
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Alkali Metals
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Give an example of a regular metal.
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lead, zinc, copper etc.
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Groups 3-12 on the periodic table are?
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Transition metals.
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What sort of metal is Technetium?
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synthetic
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What elements do not conduct electricity or heat well, are brittle and cannot be pounded into sheets?
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nonmetals
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What sort of metal is uranium?
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Inner transition metal (rare earth metal)
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These elements are properties of metals and nonmetals, some are semi conductors.
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metalloids
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