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the amazing Julian see this is a big magic trick you should learn this one see how I

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put this little pencil into a glass see underwater it looks a little so like as

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underwater it looks a little so that it's bigger but in the top it looks a

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little so as if it's in another angle. Magic! Because of refraction!

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We discovered how to make a lemon sleeve so that the lemon doesn't float, doesn't have to float, doesn't have to float, but these have to float.

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So the lemon with the skin floats and the other one sinks.

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My project is mixing coal ice and very hot water.

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You can find surprise in the hot water.

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The ice is very small now.

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So it changes from solid to liquid.

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But if I put a big piece of ice, the cold water turns into cold water and the ice stays much longer.

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Wow, that's a big piece!

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So it takes much longer to melt.

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Yes.

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And why does that happen?

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Because this ice is stiff and...

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It's bigger.

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Yes, in 30 seconds the water is turned to coal.

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How to make a coin float?

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Coins are supposed to sink, but not always.

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You can make a coin float.

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There are two possibilities, one with a clip and the other one with your hand.

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In the first one you have to fold the clip into the shape of a chair and put the coin on the seat.

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Then you put it in the water carefully and remove the clip.

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In the second option you have to do almost the same but with your fingers.

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You have to be extremely careful or the coin sinks.

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Well, it is supposed to float.

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Alright.

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What then makes the coin float is the surface tension.

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Surface tension is when the surface of the water makes an effect so that things would not sink.

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Think of the bags that flow down the river. Did you ever wonder how they do it? Well, that's why.

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Soap breaks the tension which makes the coin sink.

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How to create CO2. What you need for this experiment is a bottle, vinegar, baking soda and balloons.

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How to do it? First you put the tablespoon of baking soda into the balloon.

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I'm scared.

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Pour a little more into the balloon.

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Then you will pour some vinegar into the bottle.

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Sorry for the smell.

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After you do that, you put the balloon on the bottle.

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If the balloon is showing up, it means carbon dioxide is getting created.

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The balloon shows up because of the baking soda and the vinegar.

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When they get together, they produce a chemical reaction that produces carbon dioxide.

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The first step is two glasses of water for the soap and a small glass of glycerin.

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just need to stir everything and we have here the ultra resistant bubbles