Monday, 3 July 2017

Science Blog Week 9/10

Bmx Track

Things that are going well, I have finished the first corner and some more because I am working by myself and I can't talk to anyone.
Struggles, Not having enough play dough because I have been making the jumps entirely out of play dough. ( I have solved the problem by making the ramps out of cardboard and putting Play dough on top of the ramp.)
How I'm working, I am working very good because I am working by myself and I have no one to talk to. ( that's why I have got lots of work done.)
Improvements that I am going to make are, Not using lot of play dough.

Bmx Track Plan

Science Activity 

I am going to make a model Bmx track with a bike that you can push around the track.
I am working with by myself.
What I need. A4 paper box lid,dirt,straws,green plasticine,black and white fabric,toothpicks,black paint and back plasticine.
I am going to work in the office.

I would like the track to look like this.

Steps for the track

Flip the box so that the edges are facing upwards.
Pack the dirt so that the dirt is flush with the edges.
Paint the outsides black. ( wait till the paint is dry before you do the next step )
 Model your jumps and berms.
Put the decorative stuff on. (Start and finish line,track liner,gate and moto shed.)

Science Blog Week 8

Science Blog Week 8

What is force? 
Force is a motion, it can push, pull, accelerate or thrust. For example when you drive a car when you go to accelerate you put your foot on the accelerator and the car moves. Right? No it's not that simple. When you put your foot down it sends an electrical signal to the engine to make the pistons go around which makes the drive shaft go around which makes the wheels go around which makes the car increase speed. 
Or when a toddler picks up a toy car  the toddler pulls it towards he or she. So he or she is using the pull force.

The activity I did was rocket balloons. The materials you need to make rocket balloons are balloons, string, tape and a place to tape your string.
The steps were… 
Set your variables
Get your length of string.
Get your straw.Cut the straw to the length you want it to be.
Thread the straw through the string.
Tape the string to the table.
Blow up the balloon to the size you set it to be in my case 26 by 11 centimetres.
Tape the balloon to the straw.
Start recording your data and filling in your sheet.
Here is a picture of my data sheet

The average time was 2.89 seconds.
I have learned a lot of cool facts about force and motion like that you use force and motion every day, like when when a dog picks up his bone and take it away to its kennel. There is lots of force going on to the dog. Gravity is pulling the dog down and the force from the dog's bite is keeping the bone in his mouth.
I think changing the variables can change the data completely. Because when we put some rice in the balloon and it all spilled out at halfway and didn't go any further.

With the knowledge that I have gained this term I am going to make a Bmx track.

Science Blog Week 7

Rocket Balloons
Week 7
This week I made a rocket balloon with Kiri in room 13.
 I worked with Hamish.G, Jacob,Thomas.R and Liam.
I found out that when you tape the string to the wall you have to be careful about it because we had to retape the string because the rocket got stuck.
I wonder if I can make an up and down rocket.
I made a connection with force to Bmx.

Science blog week 6

Ping Pong Ramps
Week 6
 This week I made a ping pong ramps with Enzo,Harry and Tom.
I found out that if you flick the ball it will just spin around and it will stop spinning and it will start rolling again. I think it's because there's not much friction.
I wonder what a ping pong ball would be like if it had more friction.

Science blog week 5

Chair Pulleys 
Week 5
This week I made a chair pulleys in room 12 with Jacob, Harry and Enzo. We found out that if there is enough friction on the rope it will grip the container and pull it along. We had a slight problem if there was too much weight the basket we were using would tip. We solved the problem by putting weights on the sides. I wonder if I could make an upright pulley.

Science Blog Week 4

Rocket Balloons 

Week 4
This week I made a rocket balloon in room 13 with Kiri. I worked with Josh,Hamish.B and Jacob. I found out that if you have too much slack in the string the straw will get caught up in the string. And that you need to blow up the balloon and then you have to tape it. I wonder how far the balloon will go on a longer string with the same amount of air.