To put different things together
Mix
To take in and give out air
Breathe
A clear liquid with no taste
Water
The planet we live on
Earth
Not clean
Dirty
Where things are made by machines
Factory
To stop from happening
Prevent
Causing harm
Harmful
The bad things in our air and water
Pollution
Dirty air made when something is burning
Smoke
Tiny pieces of dirt in the air
Dust
Having an illness
Sick
To collect by hand
Pick up
The act of controlling a car
Driving
What you throw away
Trash
To cause to die
Kill
