Fire And Smoke

Why can a lot of fire make smoke and the smoke hurt people?

If your Heart dousn't work well with your Brain and only a little bit,What would happin?I would like to know because my grandpa once needed a new heart because his Heart wousn't working well.

Could Super Glue get on electricity and be a problem?

What happens if Super Glue gets on the wires from electricity?

If Your Tooth Is Broken?

If your tooth is broken,Can the Drs' put/glue it back?

Do ants and other insects sleep?