Balloon Hovercraft

This week we did an experiment called Balloon Hovercraft. We have learnt how to write scientific reports.

B E G I N N I N G	TITLE	Balloon Hovercraft
	QUESTION	How does a hovercraft hover?
	HYPOTHESIS	I predict that its not gonna fly.

M I D D L E	EQUIPMENT  AND MATERIALS:	A disk. A bottle cap. And a balloon
	PROCEDURE:	Step 1: Glue the bottle cap over the CD hole. Step 2:  Blow up the balloon. When it is fully inflated twist the end so no air comes out. Step 3: Stretch the balloon over the end of the bottle cap. Step 4: Open up the cap and place the CD on the surface. Step 5: Untwist balloon and let go.
	OBSERVATIONS/RESULTS:	The balloon’s air was reducing the friction on the table and moving the disk.

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CONCLUSION:

The air from the balloon creates a cushion of moving air between the disc and the CD and reduces the friction across the surface.

Bridge

We have been learning about forces and how they help shape the sort of bridges
that we build.  

We learned that there are three main types of bridge design; beam, truss and
suspension.  Using this knowledge we designed and built our own bridges.

Miss Fletcher set the challenge that our bridges had to be 30 cm long and strong
enough to hold an object.

In my group there were Andrew and Shiah.
We used cardboard and egg cartons  to build our bridge.

Here is a photo of our bridge. 
What I like best about our bridge is that it worked and it could hold a weight.

popcorn

My container failed. It only fitted just over 1 cup.

speech

Why gaming is bad for you?

Did you know that gaming is bad for you?  Well let me introduce you to games. Games are things that you download on your phone or ipad or tablet.

Firstly, gaming is bad for you because if you play games for long amounts of time then your brain might get hurt, you only focus on playing the game nothing else.

Secondly if you play games for too long then your body might get lazy. You might not be able to stand very well and then you will need to have to roll. Your body needs exercise and fresh air. Also your body needs sleep so don’t stay up late gaming.

Finally, gaming can hurt your eyes when you blink. If you play games in a dark room your eyes might go blurry or hurt. You might get into playing and then when your mum or dad opens the curtains your eyes might get hurt. You could also affect your eyesight and need glasses.

I think that is why gaming is bad for you. Watch Youtube instead.