The first experiment we did onThursday was an experiment which involved a balloon, a bottle, and a lot of baking soda and vinegar.
First we poured in some vinegar into the bottle. Then we carefully stuffed baking soda into the balloon. When we hatched the balloon onto the bottle and the baking soda fell out, it created CO2,Which pumped up the balloon.
Our next objective was to see if we could make a bag burst. Last time we did this, we failed many times. We decided to change up the variables:
1. We had more sellotape
2. We had two bags in one.
3. We folded over the snap-lock area and sellotaped it up.
Most of them failed, until we did the two bags in one idea. We put baking soda in one snap-lock bag and zipped it up 3/4 of the way. Then we poured vinegar into the bigger bag. We put the baking soda bag into the vinegar bag and tightly zipped it up.
We shook the bag, and the pressure began to build rapidly. Once we thought it was going to stop, we moved in to have a feel. To bad it blew up in our faces!
Finally, we did a volcano experiment. We wanted to see what would happen if we mixed vinegar and baking soda together in a bottle and poke holes in the lid.

Our result was a fountain of vinegar. The silly people in our classroom jumped in front of the bottle so they could get sprayed. They probably didn't know that vinegar smells really off-putting.
First we poured in some vinegar into the bottle. Then we carefully stuffed baking soda into the balloon. When we hatched the balloon onto the bottle and the baking soda fell out, it created CO2,Which pumped up the balloon.
Our next objective was to see if we could make a bag burst. Last time we did this, we failed many times. We decided to change up the variables:
2. We had two bags in one.
3. We folded over the snap-lock area and sellotaped it up.
Most of them failed, until we did the two bags in one idea. We put baking soda in one snap-lock bag and zipped it up 3/4 of the way. Then we poured vinegar into the bigger bag. We put the baking soda bag into the vinegar bag and tightly zipped it up.
Finally, we did a volcano experiment. We wanted to see what would happen if we mixed vinegar and baking soda together in a bottle and poke holes in the lid.
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