Modified True/False
Indicate whether the statement is true or
false. If false, change the identified word or phrase to make the statement true.
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1.
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A compound is the smallest particle of an element that keeps the
chemical identity of that element. ____________________
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2.
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People need to eat foods containing starch, lipids, and protein to
stay healthy. ____________________
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3.
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Animal parts such as hair, fingernails, and skin contain proteins.
____________________
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4.
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A group of living things and their physical surroundings is known as a(n)
habitat. ____________________
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5.
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An ecosystem is the place where an organism lives.
____________________
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6.
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The amount of acid or base in water is reported using a pH scale.
____________________
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Completion
Complete each statement.
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Select the correct term to complete each sentence. There are extra terms in
the list.| lipid | nucleic acid | starch | | molecule | oxygen | carbon | | chemical reaction | atom | freezing point | | | | | | | | | | | | | | | |
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7.
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A ____________________, such as water, is a group of two or more atoms joined
together chemically.
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8.
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A(n) ____________________ is the smallest particle of an element.
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9.
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The diagram is an example of a(n) _________________________ that occurs in
plants. 
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10.
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Most living things are made up of compounds containing the element
____________________.
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11.
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Cholesterol is a ____________________ found in animal products that can lead to
coronary artery disease.
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12.
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Plants store energy as large carbohydrate molecules called
____________________.
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13.
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High altitude environments have less ____________________ than at sea
level.
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Short Answer
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14.
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Rust happens due to simple chemical equations between iron (Fe) and oxygen (O).
Look at the following equation and identify the products and the reactants.
4Fe +
3O2 —> 2Fe2O3
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15.
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What are the 3 most common elements found in living organisms?
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Essay
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16.
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Explain how the energy of the sun becomes energy for us. Include the following
words in your answer: photosynthesis, carbon compounds, starch, cellular respiration.
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Other
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17.
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Study diagram pg 63 and be able to complete the table pg 71 #5.
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