Sunday, 18 June 2017

Science Blog

Science Blog 25.5.17 Term 2 Week 4

In term 2 science our room did tug of war, make rocket balloons and catapults.

I found out that catapults are not easy to make and balloons use air to push itself and launch to a new designated spot. In tug of war if you want to win you must force your teammates to work as a team. 

I wonder if we used wood would it be more easier to make it than Popsicle sticks and why does my hand hurt when I'm trying to grip the rope.

Science Blog 1.6.17 Term 2 Week 5

In science we did rocket balloons,ping pong ramp and basketball bounce.

I found out that if you put barriers in the side of the books the ping pong ball won't fall down and I found out that when you bounce the ball smoothly it will bounce really fast in the ground.

I wonder what forces the ping pong ball to go down and in rocket balloon why do we have to cut the straw for 10cm.

Science Blog 7.6.17 Term 2 Week 6

In science we did Ping Pong Ramp

I found out that when the ping pong ball does not have barriers in the side it will bounce high.

I wonder if we used lots of stuff like wood, cardboard and etc.

Science Blog 13.6.17 Term 2 Week 7 (first)

In science I did rocket balloons with the people who wanted to do it.

I found out that if you use the water balloon it wouldn't go anywhere because when we launched the balloon it just stayed there and 5cm straw is better than the 10cm straw because it's more lighter than the other one.

I wonder if we make the balloon size bigger would it be more faster than before.

Science Blog 15.6.17 Term 2 Week 7 (second)

In science Larrisa, Shileen and I made a pulley system.

I didn't found anything interesting about the pulley system because I had to go to reading.

I wonder if we put tiny rocks in the water bottle how much does it weigh now?

Science Blog - Rocket Balloons 20.6.17 Term 2 Week 8

Introduction:What is force? See

Push is a forward force like when you're pushing your friend in the swing.

Thrust is a forward force related to push example your pushing the door forwards.

Pull is a backwards force like you're pulling the rope in tug of war.

Gravity is what keeps us stay on the ground example when you jump the gravity pulls you down.

Friction is a resistance that one surface or object encounters when moving over another example if you roll a mug in the table the table has more friction than the carpet so the table goes faster.

Inertia is a force that continues to roll till another force stops it example a vivid is rolling and it hit another object the vivid that was rolling stops. 

2. See

The first steps I did were measuring how long we want to be and we put the straw and cut it to 5cm. The second part was to measure the balloon size and we made it 19x25. The last part was to stick the balloon in the string so we can realise the little hole in the balloon and when we released the balloon it didn't accelerate fast.

The variables were measuring the string to 7.5m, Straw 5cm and 19x25cm is the balloon we needed it to be.

The data I gathered was the time how fast the balloon because some of the balloons didn't go as fast as it can and the balloon popped too.

The variables I changed was the balloon size because when we tried 19x25 cm a couple of times it didn't go well so we changed the balloon size every time we've done one each. This was the balloon sizes our group used. 36x29, 16x18, 20x45 and 10x39.

The new size of the balloon made it more faster and more push force.

I learnt that different balloons can have different strengths.

I can use this learning to discover more things and make the balloon more faster.

I wonder why the balloon circles around the string when it is losing air.
Science Blog 3.7.17 Week 9/10 Term 2

Day 1
When I was doing the idea that was in my head I thought it was working well and I one split second I found something wrong, and it was the tires because the tires I made it off was cardboard.

The struggle for me was finding a clever way to tape the straw under the cardboard because the tires are being clumsy.

The idea I worked on didn't go well because i made a mistake and it was using bottle caps instead of cardboard because when you push the cardboard tires it just stops.

The improvements I am going to make are bringing the stuff, listening to the steps I made because it was hard finding bottle caps for the car.

No photos on day 1

What I'm going to do next is to ask for help when unsure because I didn't do that when I was lost.

The force is used when you release the balloon and the car will start to move.

Day 2

When I brought the stuff I needed I thought it wasn't going to go well and when I made a decision to use a skewer instead of a straw to put in the tire. When I finished the balloon I felt proud because on day 1 I did nothing. I didn't know how to blow a balloon up and Jack said “blow as hard as you can” I did that and it worked but when I let go of the balloon it didn't go well.

My struggles were finding a way to make a hole in the plastic cap and bottle and Jack helped do that again.

The idea I worked on kind of worked well and didn't go well at the same time because the good thing was the tires working perfectly and the bad news is I don't know how to blow a balloon.

The improvement I am going to work on is to find a way to blow the balloon so I don't have to ask people for help, making the tires bigger because the moving animation of it is weird.

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