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Prentice Hall Ch. 3 Test Science Explorer

Total questions: 21

Worksheet time: 20mins

Name
Class
Date
1.

substances can be classified as:

a)

plasma

b)

solids

c)

air

d)

gases

e)

liquids

2.

a (a)   has a definite shape and a definite volume.

3.

the particles that make up a(n) (a)   are packed very closely together.

4.

a (a)   has a definite volume but no shape of its own.

5.

a liquid's resistance to flowing is:

(a)  

6.

liquids with high viscosity flow:

(a)  

7.

liquids with low viscosity flow:

(a)  

8.

(a)   in liquid form has the lowest viscosity of zero.

9.

a (a)   does not have a definite shape, but neither a definite volume.

10.

a substance changes shape when its _______ _______ decreases or increases sufficiently.

(a)  

11.

the change in state from a solid to a liquid is called:

(a)  

12.

the change from a liquid to a gas is called:

(a)  

13.

this occurs when particles in a gas lose enough thermal energy to form a liquid-

(a)  

14.

this occurs when the surface particles of a solid gain enough energy that they form a gas:

(a)  

15.

dry ice is an example of:

(a)  

16.

when working with a gas, it is helpful to know 3 of these measurements:

a)

volume

b)

temperature

c)

pressure

d)

mass

e)

density

17.

the volume of a (a)   is the same as the volume of its container.

18.

pressure is:

(a)  

19.

(a)   found that when the pressure of a gas at a constant temperature increases, the volume of a gas decreases.

20.

The (a)   on a graph is the point, (0,0)

21.

When a graph of 2 variables is a straight line passing through the origin, the variables are said to be:

(a)