Coke Bottle experamint

Can you inflate a balloon inside a coke bottle? We did an experiment to find out.

Hypothesis

I think that it will work because when there is a hoil (If there is) all the air will come out and the balloon will have enough air to move.

What to use

• 2 liter Coke bottles
• Balloon
• scissors

Liam did a demo version of how it would work. We had a go at blowing up the coke bottle with no hole and it didn’t work. I got to have a turn and it was really hard and my cheeks turned red. When you have a hole the size of a pin you can blow it up and when you take it out the balloon should stay pumped up because when you put the hole in all the chemicals and the air will come out then there is enough room for it to blow up the balloon a quarter up. With the little one it is the exact same as the big one when you put the hole in. With the big one and it has no hole  it will shrink in lease then a second.

Conclusion

So when you do it make sure you have a hole in the bottle and the balloon is pumped up and you seal it.

Bike Safety

Bike Safety

Before you go out on the road stop! Check your bike incase something is wrong because you could get really hurt and you don’t want that to happen. The following paragraphs will be talking about clothing, safety rules, Road rules, how to check your bike and the conclusion. Also, are signs on the streets just for cars?

At night when you go biking you need a bright orange or yellow jacket because they are very bright and cars should be able to see you. Shoes are also very important because when you are riding along you could stub your toe but with shoes you wont. Helmets are very important because if you fall off and you pound your head on the ground you might seriously get brain damage.When you are turning a corner or roundabout yous your arms as indicators.If it is a really hot day take some sunblock! because you might get burnt.

When you go out on your bike, make sure you know all the rules because if you break them you are in a lot of trouble. If you are biking and the Police see you with no helmet they will take your bike off you and they will give you a ticket.  All rules are just as important.

Every time you bike on the road you always stay on the left side of the road because that is very illegal and people will be thinking what are you doing. They will also suspend your bike and if the police call you up the might take a pitcher  so if you get caught again something will happen. When you are zooming on the footpath go slow past gates because a car might hit you off your bike, if you are also over teen and you bike on the footpath that is illegal.

Before you hop on your bike do a safety check. So when you are checking it turn it over and you will see your serial number. Write it down just incase it gets stolen and the police can track it down. You also need to check every part of you bike because something might be loose or broken. Make sure you check your brakes are good because if you are going down a hill you won’t be able to  stop. Make sure you have oiled your chain because it will just rust and will be weak then eventually break.

So if you are ever planning to go on a biking adventure make sure you have a helmet and you have oiled your chain. Also, the answer to that question is yes, bike riders  do need to follow the road signs.

Hair-pong

Hair-pong

You need!

1 hair dryer, 2 ping pong balls

Methed

We used the tools and the question was can a hair dryer balance 1 ping pong ball and it can because the gravity was trying to push it down but the hair dryer had enough strength to push it up and stay. When we tried to use 2 they keep hitting each other and one fell of.