Créer jeu
Jouer Test
1. 
When a volcano shoots rock and ash into the air (verb)
2. 
The hard outside layer of the earth and of a loaf of bread (noun)
3. 
A crack in the earth's crust
4. 
Big pieces of the earth's crust
5. 
To push really hard to make something move
6. 
The gray soft substance that's left after a fire
7. 
Something gets harder and harder (verb)