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Worksheets

Particles

Total questions: 10

Worksheet time: 9mins

Name
Class
Date
1.

A particle is a very tiny object, (a)   or molecule.

2.

A diagram showing how substances behave in terms of particles is called a ...

a)

paparazzi model

b)

particle model

c)

Brownian model

d)

Newtonian model

3.

The movement of substances from an area of high concentration to an area of low concentration, down a concentration gradient is called ...

a)

density

b)

sublimation

c)

diffusion

4.

Change from a liquid to gas at the surface of a liquid

(a)  

5.

A change from a liquid to a gas of all the liquid when the temperature reaches boiling point

(a)  

6.

A change in state from a gas to a liquid when the temperature drops to the boiling point

(a)  

7.

A change in state from a solid to a liquid when the temperature rises to the melting point

(a)  

8.

A change from a liquid to a solid when the temperature drops to the melting point

(a)  

9.

A change from solid directly to a gas

a)

subordination

b)

solvent

c)

supine

d)

sublime

10.

Brownian motion is the random movement of (a)   in a fluid (liquid or gas)