Can you suggest a magic using chemistry?

Question

A school boy wanted this for performing in his school but I couldn't suggest any.

Answer 1

Try this link, there's a few on there that look like fun :)
http://www.scienceyear.com/text_only/wired/magicbox/index.html

Answer 2

Using universal indicator and varying strengths of acids and alkalis. The universal indicator will make the other substances 'magically appear to change colour'. A good way to make this look like magic is to soak two pieces of filter paper, one in universal indicator and one in water. Add a few drops of acid to both and while one will stay the same colour, the other one will magically change.

Another one is with two eggs and two beakers of what looks like water. If you remove the shells from the eggs, very carefully so the membrane doesn't break, and then put them in the two beakers containing different solutions, you will see a change. The first solution should be highly concentrated with sugar, while the other one is just pure water. The egg in the highly concentrated beaker should shrivel while the other egg should bulge.
This is because the membrane on the eggs is selectively permeable. So it will let some substances out but not all. So when placed in highly concentrated sugar solution, there will be a net movement of water molecules out of the egg and into the solution, in order to try and equalise the water potential. Whereas in the other solution water will flood into the egg instead because there are fewer water molecules inside the egg.

Another 'magical' chemical reaction is dropping a small lump of lithium into water. It fizzes and prioduces a small plume of smoke. This is because group one metals react quite violently with water. It gets more violent as you go down the group. This experiment should be carried out by an adult who knows what is about to happen. It can be incredibly dangerous, especially with the last two in the group. The reaction there is so vigorous that whatever is containing the water explodes under the pressure. In fact only the top three in the group are reasonably safe.
But with this experiment, so long as it's lithium used and in small amounts, it's reasonably safe.

Answer 3

No I can`t specifically but, I remember a good few years ago, included within my daughters chemistry set, were the ingredients and instructions for turning a clear liquid, black, in an instant
It really was quite impressive.
I am sure that those who know of this little trick and reading this will furnish you with the information.

Answer 4

Teacher in the pool................
Explain to the audience that you will demonstrate what happens when your teacher gets in the pool.
Take a shallow plate filled with water and sprinkle pepper over the water. Explain that the water is the pool and the pepper are the kids in the pool. Quickly before the pepper sinks-place your finger in Dawn dishwashing detergent and then say "now the teacher jumps in," immediately dipping that finger into the edge of the water. The pepper will race to the side of the plate immediately opposite your finger in a rapid manner.

Answer 5

Put a hard boiled egg into a milk bottle without breaking the bottle
Objects you will need
1. Hard boiled egg peeled
2. Glass milk bottle
3.Small piece of paper
4.Lighter or matches
5.Adult supervision

Take the piece of paper and set fire to it.Drop it burning into the milk bottle.Immediately place egg on top of the bottle and watch.
The burning paper uses up the oxygen creating a vacuum and sucks the egg inside the bottle.

Answer 6

This one definately needs adult supervision but if you dip a £5 into ethanol and set fire to it. The ethanol burns off leaving the note intact. Only to be performed over a fire proof mat.

Answer 7

Reading your answers I don't think you wanted real MAGIC?
Anyway here is one.

Why does passing A.C. through a coated plate covered in zinc oxide change it to D.C.

Answer - I don't know.

Answer 8

Hi. Bleached water and food coloring is cool for the younger kids.

Answer 9

Under adult supervision?

Heat a soda con over a Bunsen burner.

Place soda can in cold water.

The can compresses!!!!!!!!!!!!!