chapter 8-physics

1.

5 points

Different types of _____ have different characteristics.

2.

5 points

They melt and ________ at different temperatures.

3.

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Characteristics that you can see through direct observation are called ____________ properties.

4.

5 points

Substances can often be ______ by their physical properties.

5.

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A physical ____ is any change in size, shape, or phase of matter in which the identity of a substance does not change.

6.

5 points

__________ changes are reversible.

7.

5 points

The change can easily be reverses by _________ the water.

8.

5 points

Bending a steel _______ is another physical property.

9.

5 points

Properties that can only be observed when one substance changes into a _________ substance are called chemical properties.

10.

5 points

A chemical property of _________ is that it reacts with oxygen in the air to form iron oxide (rust).

11.

5 points

___________ is the ratio of mass to volume.

12.

5 points

Density is a __________ of solids, liquids, and gases.

13.

5 points

TO find the density of a material, you can _________ its mass by its volume.

14.

5 points

You can calculate mass if you know ________ and volume.

15.

5 points

The densities of a steel nail and a steel cube are the __________.

16.

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Solids have a wide range of _____________.

17.

5 points

The density of air and other ___________ is much lower.

18.

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The density of a material depend on two _________.

19.

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One is the individual mass of each ________ or molecule.

20.

5 points

Density also depends on how ____________ the atoms and molecules are packed.

21.

5 points

The atoms or molecules in a solid are arranged in two _______.

22.

5 points

If the particles are arranged in an orderly, repeating ________, the solid is called crystalline.

23.

5 points

If the particles are arranged in a _______ way, the solid is amorphous.

24.

5 points

Most solids on Earth are ________.

25.

5 points

The word amorphous comes from the _________ for "without shape."