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