science change

for science we have been learning about change. Mrs McG mix bleach and yeast together and that makes oxygen 







So we put bleach and yeast and that made oxygen.

Fizz pop froth

In science we have been learning about change. Change happens when we mix or combine two different reactants substances together. When this happens a chemical reaction takes place .

since change

I am starting to learn about since  and change this is what I found out today what new information can someone tell me?