Page 15 - Science Course 3 (Book 2)
P. 15
Mo8-L1: Vocabulary Review
Direction: In this word search puzzle, f nd and circle the four terms listed below. Then write the correct
term on the line before each def nition.
chemical change expose law of conservation of mass physical change
1. total mass before and after a chemical
reaction is the same
2. a change in matter in which the density
of the matter stays the same
3. a change in matter in which the sub
stances that make up the matter change
into other substances with different
chemical properties and physical
properties
Mo8-L1: Key Concept Organizer
Direction: On the line before each change, write Direction: Some changes can be reversed—
P for physical or C for chemical. others cannot. Put a check mark on
the line before each change that
1. glass melting is reversible. Put an X on the line
before each change that is not
2. wood burning reversible
3. bread baking
4. water vapor condensing 10. making water into ice
5. iron rusting 11. hard-boiling an egg
6. leaves changing color 12. dissolving salt in water
7. sugar dissolving 13. breaking a window
8. oxygen becoming liquid 14. scorching a fabric
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