yesterday we did rocket science it was amazing and interesting because we got to see the pressure build up in the mini rocket.
I think it was amazing because we could stomp on a pressure thing ,then it would fly up into the air but what we found out is if you jump of a high and land on it doesn't go as high,when stomp on it when you're on the it goes higher.
I saw on the pumping one if you pump 10 more than the other one it doesn't go that much higher only like a 1.3rd of a meter more than the other time.
i wonder if you pump 100 ones if it will break the bottle or not or if it will evan go of the if you do 5 pumps.
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