Unit/Chapter 2 Reading Assignment
Name ___________________
Period ______ Date_______
Pre Reading questions: (DO BEFORE YOU READ) (5-10 min)
1) How do atoms differ from molecules?
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2) Give an example of each of these: a solid, a liquid, a gas.
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3) Describe a chemical change (chemical reaction) you have witnessed outside of school. How do
you know that it is a chemical change?
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CONTINUE ON BACK
While you are reading pages 21-29 define these key terms:
(20 min)
1) Matter
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2) Atoms
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3) Compounds
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4) Molecule
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5) Elements
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6) Solid
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7) Liquid
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8) Gas
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NOTE: You must reference page numbers to support your claims!
1) How do we know that all matter is made of atoms? (5 min)
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2) Why are hydrogen molecules called “elements”, but water molecules “compounds”? (5min)
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3) What happens to food coloring when we add it to water? How do our observations support
the idea that water is made up of moving molecules? (5 min)
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GRADING RUBRIC ON BACK!!
Score
In response to this item the student
2
1
0

Demonstrates complete knowledge of matter by explaining it using both pictures
and words.
 References 2 examples (figures, paragraphs or pictures) from the text.
 Demonstrates partial knowledge of matter by explaining it using both pictures
and words
 References only 1 example (figures, paragraphs or pictures) from the text..
Gives a response that provides insufficient material for scoring or is inaccurate in all
aspects.