Tuesday, 15 August 2017

Science Blog

Science Blog Week 9/10
Today at Science I created a balloon powered car. The day before Science, I couldn't get organized so I didn't use my plan to organize and get something else.

My struggle is the tires because it doesn't roll that much because it is made of rubber. My other struggles is that my balloon doesn't stick on the car because I can't use the hot glue gun on it or it will melt.

The force I used was push. When I used push, I pushed it to see if the wheels work and wish it doesn't stop on the middle of the table. That was my push.

Things that are working well is the hot glue gun because it sticks perfectly together.

My improvements I need to make is working faster because I don't have time to finish.

My next step is not make mistakes and work faster than the other Science at school.


Science blog Week 8
 What is force?
Have you ever wondered what force is?Force is not some mysterious invisible energy field that takes over the whole universe(I wish that was true.) It's actually something very simple: Push and Pull.

Push is when you push a pencil on the ground and it will roll. That's push. Is that more simple than some mysterious invisible energy field?

If you ask what's pull, this that when you're pulling your door to make it open. That's pull. Very simple.

There's more forces than push and pull. Gravity and acceleration.

Gravity is in space, when you float in space, there is no gravity. Gravity keep you on the ground and not make you fly out to space.

Acceleration is when you run very fast down a mountain, it's acceleration.

Do you know force now? If you do, never think about force is a mysterious invisible energy field that will take over the universe.( Only when you're watching Star Wars.)

Catapult
Need:
A bunch( 20 )of popsicle stick
A medium sized plastic spoon (Don't get a metal spoon or it will break!!!!!)
62 rubber bands
4 cotton balls
This is how it went:
That's how it went.
When we had three cotton balls, it went longer. At the start we didn't know how to make it shoot longer until Matthew said “ Change the angle. It will go longer than 8M like this.” He changed the angle from laying to standing. It went 12.82M. He said “ Now you try.” Giving back the catapult to Finley. We now started using Matthew’s way to shoot. At last we shot 20.62M and I said “ I didn't know that this catapult can shoot this far.” I learnt that small things can do big things.

The first step was make the catapult with four ingredients.( Look on the top chart to see what it is.) Use the popsicle stick and the rubber band to make the base. Stick the spoon in the top rubber band and place the cotton balls on top of the spoon and pull the spoon back and when you let it go it will shoot. The second step is to tie the rubberband around the cotton ball to make weight and each shot you do you tie another rubber band. The last step is to estimate how it went and write how long it went. After you finish test 11, you write a chart of the length of how long your shooting went.



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