## Thursday, 28 September 2017

### Science blog

Science blog

Week 8- rocket balloon

Introduction What is force?
Do you know what force is? Well if you don't when you read this you will know what it means.
Force is like a thrust type of push and pull which you can push a pen on the table and that is how you can do a force thrust. It's When someone gets pushed the other person who bushed you can also get pushed.
Isaac newton:
3 laws
Inertia: an object will continue to be as is, until a force changers it.
Acceleration: when an object  goes faster, also the lighter it is the more acceleration.
For every action there is a reaction.

See:
The materials that we had to use was………
Balloon
3 meter string
10 cm straw
Tape
Steps that I had to make was
You need to put the string whatever angle that you would like to do
Thread the string through the straw and stick the balloon on the straw
Blow Up the  balloon and let go and there you have a rocket balloon

Think:
The data that I gathered was all very interesting because we had different times and different ways that we did it. The variables that I changed with my group is, the balloon, the size of the balloon and the tension, and they all had different time.
These changes, changed my out came by the size of the balloon made it go faster or slower. We blew up the balloon bigger it would go a lot slower and the smaller the balloon the faster it will be, because the smaller it is the faster the air comes out faster. I learnt a lot of things like the smaller the balloon the faster it goes. I also learnt that the the force of the balloon can make it go all types of ways.
Wonder:
I can use this new learning for the future when I'm older in particular next year I would have to do a test about it. Also next week I will be making mini  playground that has to use of course the teacher told us to lol. The wondering that I still have is what would happen if we have the string longer and the balloon was bigger would it make it to the other end.

Week 9
This week I did a plan here is a photo

Steps
Get everything
Pack up things with the swing
Slid
Pack up things with the slid
Gate
Pack up things with the gate
See saw
Pack up things with the seesaw
Firemans pool
Pack up things with the fireman's pool
Flying fox
Pack up things with the flying for
Fake plants
Pack up things with fake plants
Then pack up ( no all ready pack up)