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10 Cards in this Set
- Front
- Back
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ecologists study..?
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relationships between organisms and their environment
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How are matter and mass related?
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mass is a component of matter
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Water vapor, water, and ice are examples of..?
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phases of matter
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What implication(s) does the law of conservation of matter have for humans?
A)we cannot create energy because it is neither created nor destroyed B)as matter is recycled it loses some of its integrity so we need to be careful when we dispose of goods C)natural resources are unlimited because they are use and reused by living organisms. D)disposable goods are not going "away" when we throw them out E)we should not worry about saving water, because matter is not created or destroyed |
disposable goods are not going "away" when we throw them out
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the law of conservation of matter tells us that matter..?
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is used repeatedly
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the smallest particle that exhibits characteristics of a chemical element is known as a(n)?
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molecule
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The relationship among atoms, elements, and compounds is most like the relationship among..?
A. bricks, brick houses, and large brick buildings. B. grains of sand, rocks, and continents. C. bricks, sidewalks, and paved roads. D. pond, lake, and ocean. E. grains of sugar, sugar, and sweetened iced tea. |
grains of sugar, sugar, and unsweetened ice tea
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A compound is to a(n) _________ as a word is to a ________.
A. element, sentence B. isotope, sentence C. atom, letter D. molecule, punctuation mark E. element, phrase |
atom, letter
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In chemical terms water (H2O) would best be described as a(n)
A. element. B. atom. C. ion. D. compound. E. isotope. |
compound
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Which of the following is not a molecule?
A. O3 B. O2 C. H2O D. DNA E. C |
C
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