Answer:
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?
I stand in one place yet I fill a whole room. I can be filled with molten rock and come in every hue.
An action done on mosquito bites
I'm white and I'm used for cutting and grinding. When I'm damaged people usually remove me. What am I?
What has a head and a tail, but no body or legs?
A little house full of meat, no door to go in and eat.