Room 3 made pop-rockets. First we got a toilet roll and cut it to make it smaller .We cut a circle out then cut it to the middle and made a cone for a lid then we put tape so it will stick together.Then we made wings on them [we had three wings on them] .Then we painted them all different .The next day we set them off with a borocca tablet and a splash of water.They did not go that far.

The gas that came off the borocca tablet and made the pressure, when the pressure was too great it pushed off the lid and the rocket popped off - this is called thrust. If you didn't put the lid on properly it didn't work because it had no thrust.

We found the smallest pop rockets went the furtherest and the film canister with no decorations went the furtherest. It worked best if you just put a little bit of water in covering the pop rocket, if you put too much water in they didn't go so high.

They were fun cause you never knew when they were going to pop!

Larissa Came