Name: Pulling the beet

Author: Filip Lašák, ZŠ a MŠ Diviaky nad Nitricou

You pull too strong! That is why you fall with the leaf.

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Authors' commentary
This was the reaction of a pupil when asked why he should pull out weeds slowly.

Name: New state of matter

Author: Marek Divéky, ZŠ a MŠ Diviaky nad Nitricou

In the school:

Question: What state of matters do we know?

Expected answer: amorphous and crystalline

Given answer: Amorphous and the states of sugar-beet

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Authors' commentary
Sudents often worry about  concepts...

Name: James Watt and the plug

Author: Michal Turcer, ZŠ a MŠ Diviaky nad Nitricou

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Authors' commentary
Scientist or non-scientist / electricity is always the same 

Name: Not all resistsnce is the same

Author: Matej Molčan, Prešov

1^st man: Why do you have so many resistors?

2^nd man: So that when my wife will come to the pub saying
it’s time for me to go home I will be able to resist.

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Authors' commentary
This joke is based on knowledge that the more resistors are in series the bigger is the total resistance. This man thought that if he use a lot of resistors, he will "resist" to his wife more strongly.

Name: Beer

Author: Richard Strýček, Čierne

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Authors' commentary
Archimedes principle: The apparent loss in weight of a body immersed in a fluid is equal to the weight of the displaced fluid.

Name: Swallows

Author: Nikolka Vojčiniaková, Čierne

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Authors' commentary
When materials are heated they increase in volume. When they are cooled down, the volume decreases.

Name: Particles

Author: Anna Grochálová, Čierne

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Authors' commentary
Why are the particles moving so quickly and alarmingly?
Because they are scared of Brown’s eye.

Name: Cinderella

Author: Renáta Varmusová, Čierne

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Authors' commentary
What will happen to Snowhite when she steps on an electric cable?
She will become Cinderella.

Name: Galileo Galilei

Author: Adela Tatarková, Čierne

1^st man: Do you know a guy called Galileo Galilei?

2^nd man: Yes, that’s the famous scientist who discovered that the Earth spins.

3^rd man: I’m not a scientist, I’m not even famous and all it takes for me is to go home from the pub to know that the Earth is spinning.

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Name: Snowman

Author: Marika Vojvodíková, Čierne

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Authors' commentary
The sign says: “Contribution for a fridge, please”

Name: Newton

Author: Andrea Legerská, Čierne

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Authors' commentary
Isaac Newton was sitting under the apple tree. Then all of the sudden an apple fell down and bumped his head. Then another one and another …

“I have got it? I can make canned apples.”

Name: Newton

Author: Martin Bosý, ZŠ Tbiliská, Bratislava

[ zväčšiť ]

Authors' commentary
"Thousands of apples did onto the Earth bump,

but only Newton profited from his hump."
Written by poet Vítězslav Nezval

Name: Magnet

Author: Timea Strýbarová, ZŠ Komenského Trebišov

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Authors' commentary
The magnetic force can uncover even a thief.

Name: Undesired bath

Author: Lucia Habšudová, ZŠ a MŠ Centrum 1, Dubnica nad Váhom

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Authors' commentary
Sometimes it is better to leave your image at home and then return dry.

Name: Inventor

Author: Ivan Hubina, ZŠ Kristíny Royovej, Trenčín

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Authors' commentary
Electricity is not only generated in electric power plants. We can see it in nature too. Lightning is also a form of electricity.

Name: In the farmyard

Author: Miloš Kohout, ZŠ Kristíny Royovej, Trenčín

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Authors' commentary
This picture shows that all you need for an electric circuit is a plug, a plug socket and an electric appliance.

Name: Skelet

Author: Dominika Lašová, Čierne

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Authors' commentary
Do you know what the last light is?
If you put your fingers into a plug when it’s night.

Name: Pascals' law

Author: Simona Pappová, ZŠ a MŠ Centrum 1, Dubnica nad Váhom

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Authors' commentary
We’re lucky that Mr. Pascal had a dwarf who would discover physical laws for him. Or was it all just in his head?

 

Name: Power

Author: Vladimír Vereb, Nikola Šimková, ZŠ Komenského, Trebišov

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Name: Lightning

Authors: Lucia Matejová, Helena Jalčová, ZŠ Komenského, Trebišov

It’s great to feel a firework on my own skin.
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Name: Apples

Author: Juliana Jašurková, Čierne

- And here’s knowledge.

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Authors' commentary
Gravitational force

 

Name: Try to catch me

Author: Jaroslava Chrastinová, Svrčinovec

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Authors' commentary
Effect of the electric current on the human body

Name: Beware of electricity

Author: Beáta Becková, ZŠ Čierne - Ústredie

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Authors' commentary
If you touch a charged ball, not only your hair but also your clothes are electrified as the girl in the picture discovered.

Name: We are saving water

Author: Ivana Chovancová, ZŠ a MŠ Centrum1, Dubnica nad Váhom

”AHAA, this is the famous Archimedes principle”

“And this is my principle.”

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Authors' commentary
Use only that much water you can afford  to pay for.

Name: Theory of relativity

Author: Dominik Glombík, Gymnázium A. Bernoláka, Námestovo

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Authors commentary
1 min on the toilet is not enough but 1 min of waiting is enough to

Name: Thiefj

Author: Dominika Floreková, Gymnázium A. Bernoláka, Námestovo

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Authors' commentary
A new mobile phone and a thief are attract to each other with the force equivalent to the cost of mobile phone.

Name: Inventions

Author: Dominik Glombík, Gymnázium A. Bernoláka, Námestovo

1^st man: Good morning which part of air technology are you interested in.

2^nd man: None. I’m a chemic, Alfred Nobel.
I just had a failed experiment with nitro-glycerine.

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