A Candle

Experiment from Amanda, Nikola & Martyna

To our experiment we need a candle, a funnel and match.
When you blow next to a candle flame you create a stream of air. The air pressure outside the stream is bigger than the pressure inside. The pressure difference causes movement of the outer layers towards the interior of the air stream. Candle flame bends indicating the direction of the created air movement.

Against gravity

Experiment from Ania&Andriej


To experiment we used lane and double cone.
First we measure the lane. Leftside has 4 centimeters and rightside has 6 centimeters.
We want to show you that the block can roll uphill.

It seems that the double cone moves uphill (against gravity) but in reality it moves accordingly to rules of physics. Because lanes are spread the center of weigt is shifted down during the rolling.

Swimming coin

Experiment from Ania&Andriej

To our experiment we need a bowl of water and a coin. We want to show you that mettalic coin can hang on the water surface. We put the coin onto the water.
Why it doesn't sink like majority of mettalic things?
It doesn't sink, because cohesion force is big enough to keep the coin on the water surface.

Stripping the egg without touching it

I pour vinegar into a glass and put inside an uncooked egg. After 24 hours I take out this egg. We can see, that this egg hasn't got a shell now and is soft. It is bouncing now.
A calcium is in the egg’s shell. (there is a calcium carbonate, witch makes, that the shell is hard and brittle at the same time). Under the influence of vinegar formed compound and calcium is washed. So vinegar reacts with the calcium- vinegar dissolves calcium. On the egg remains only a membrane, witch the vinegar doesn’t dissolve.

by Żaneta&Kinga

How to make refractory paper?

Home made video from Justyna&Grzegorz

To our experiment we need:
metal cup, piece of paper and lighter.


Heat is transfered from paper belt to metal cup. That's why paper can not reach ignition temperature.

Vinegar&baking soda

Experiment from Kinga & Żaneta
We pour vinegar into a bottle and fill the balloon with baking soda. Then we're stretching a balloon on the bottle and turn it up side down. The balloon grows up by itself. In this experiment carbon dioxide is created.
Next we let it into the bottle. The burning match will dejeckt in this bottle, because there isn't any oxygen.
So when we remove the carbon dioxide from the bottle, the match will burn because there is oxygen inside now.

Flying cork

Experiment from Ania&Adriej

To ours experiment we need a water, a stand, a cork, a test tube and a burner. We pour water into the tube and dose it with a cork. Then we put this on a stand and burner under it. We heat the water. The cork fires out because steam in tube pushes the cork under high pressure.

How to do invisible ink?

Experiment from Grzegorz&Justyna




It happens because hydrogen contained in the lemon juice, affixed to a piece of paper under the influence of fire reacts and stained with brown.

Mechanical resonance

Experiment from Amanda, Nikola & Martyna

Water, pepper & washing liquid

Experiment from Amanda, Nikola & Martyna

Water and oil

Experiment from Ania&Andriej

center of weight

Experiment from Ania&Andriej

Swinging water

Experiment from Amanda, Nikola & Martyna