My favorite science experiment we have done so far is when we combined the yeast and hydrogen peroxide to make oxygen gas that we could burn.
I loved this experiment because we got to see a chemical change and we got to light matches and see something foam up and overflow. When we combined the yeast and hydrogen peroxide it took a second but it foamed up and it overflowed. After that we lit the match and let it burn out then we put it right up to it.
We tried to light the match but it didn't work. The reason i like this experiment is because we got to set a match on fire.