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22 Cards in this Set
- Front
- Back
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How are science and technology related?
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Science and technology are related because advances in science can lead to advances in technology and vice versa.
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In which step of the scientific method is information obtained through the senses?
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During the observation stage, you use your senses to obtain information.
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What is a statement that summarizes a pattern found in nature
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law
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What is the most important safety rule?
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The most important rule is to follow your teacher’s directions and follow them exactly.
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The type of graph used to show how a part of something relates to the whole is..
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circle graph
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• How do scientists who speak different languages make their data understandable to one another?
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They all use the SI units of measurements.
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A substance that is made up of only one kind of atom is a(an)
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element
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Water is a compound because it
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made out of two simpler substances(hydrogen-oxygen) and can be broken down into those substances.
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endothermic changes
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Melting, Vaporation, Sublimation
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exothermic changes
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Freezing, Condensation, Deposition
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According to John Dalton’s observations, when elements combine in a compound,
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they always combine in the same way.
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The glowing of a neon light is caused by electrons emitting energy as they
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move from lower to higher energy levels.
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The unit for atomic mass (amu) is
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one twelfth the mass of a carbon-12 atom.
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A member of the boron family has three valence electrons, while a member of the nitrogen family
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5 valence electrons
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Which of the following Group 7A elements Halogens is the most reactive?
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Fluorine
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Among the alkali metals, the tendency to react with other substances
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decreases from top to bottom.
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Which element is found in nature only in compounds?
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Sodium
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Which element is found in most of the compounds in your body except for water?
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Carbon
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Noble gases
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argon, helium, krypton, neon, radon, and xenon
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Ionization energies tend to increase from
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from left to right across the periodic table
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Which of the following statements correctly describes the substance with the formula KI?
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There is a 1:1 ration of potassium cations to iodide anions.
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Metallic bonding is similar to ionic bonding because
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they have high melting and boiling points, because their electrons and positive ions have strong attractions.
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