Pressure means when the weight or force that is made when something presses or pushes against something else.
Compression means the action of being squished down or made smaller.
We used our knowledge of these new words and created our own rockets following the instructions very carefully. Here is how we created our rockets.
Matriles
Cardboard
Bambo skewers
Duct tape
Ballon
Straw
1. Cut out 4 Wheels
2.Push sharp end of skewer though centre of each wheel to make a hole.To make a tiny hole. Then remove.
3.Cut skewer to allow 1 cm hangover each side of cardboard.
4.Tape straw 2cm in from end of frame. (2 strips on each axel) Make sure axels are parallel.
5.Cut ring off end ballon.
6.Tape ballon tightly on straw.
7.Tape straw and balloon.
8.Balloon needs to be resting on frame.
9.allow 10cm overhang with straw.
10.put wheels onto axels remarrying to keep the centre hole tight and small
11.use straw and inflate ballon
12.place on flat surface and inflate ballon
Here are 2 exampls from Charlie and thao and ova and Angela
