What word means:

harmful or unclean materials in air or water?

What word means:

the ability to move yourself or something else?

What word means:

the ability to blend with your surroundings?

What word means:

the layer of gases around a planet?

What word means:

small living organisms that cause illness?

What word meanss:

small living organisms that causes illness?

What word means:

an animal that eats only other animals?

carnivore

What word means:

an animal that eats only plants?

What word means:

food sugars and starches the body uses for energy?

What word means:

the process of breaking down food into a form that can be used by the body?

What word means:

to mix a solid until it disappears in a liquid?

What word means:

to change from a liquid into a gas?

What word means:

liquid or solid that pulls objects towards one another?

What word means:

the deep sleep that some animals enter in winer?

What word means:

to move to a different area when seasons change?

What word means:

a stream of air or water?

What word means:

the sun and all the planets in its orbit?

What word means:  matter with

1.  definite shape
2. definite amount of space

What word means:  matter with

1. no definite shape
2. does not take up a definite amount of space

What word means:  matter with

1. no definite shape 
2. does take up a definite amount of space