ch.1 lesson 1

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1.
1 point
melting butter is an example of physical change.
2.
1 point
a substance is a single kind of matter that is NOT pure.
3.
1 point
water changing into ice is a chemical change.
4.
1 point
rust is an example of what kind of change?
5.
1 point
a pure material is not mixed with any other material.
6.
1 point
the study of matter and how matter changes is:
7.
1 point
air is matter.
8.
1 point
a good conductor of heat is:
9.
1 point
matter is:
10.
1 point
a property is not a characteristic of matter
11.
1 point
fuels can catch fire and burn. when a fuel burns, it combines with oxygen in the air and changes into the substances water and:
12.
1 point
name the 3 forms of matter.
13.
1 point
matter has two properties- physical and:
14.
1 point
hardness, texture, and color are examples of:
15.
1 point
a ratio tells you the relationship between two or more things.