water experiment Slovenia

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(6,7 years old) : 

(6,7 years old) You need: - a plastic bowl - a plastic bottle with three small holes - tap water Experiment: the force of water 1.Children put a plastic bowl on the table and hold the plastic bottle above it.

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2. First they seal the holes of the bottle with fingers and then they pour water in some water. 3. They put the bottle in the bowl and watch how the water flows out through the holes.

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The highest amount comes from the lowest hole. And the lowest amount comes from the highest hole.

(7-8 years old) : 

(7-8 years old) You need: different bowls ruler for measuring the depth water pot for water Experiment: water in bowls 1. Children pour the same quantity of water in different sizes of bowls.

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2. Then they measure the depth (with a ruler) 3. They mark the level of water. 4. They figure out that the level of the water isn’t the same in all bowls.

3rd class (8 years old) : 

3rd class (8 years old) You need: sugar salt vinegar sand grains oil They try which of the substances dissolve in water. Which of the substances dissolve in water?

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Sand and grains don’t dissolve in water. The result: But sugar, salt and vinegar do. They don’t see any colour with salt and sugar. But they see a pink colour with vinegar.

Experiment: magic glass (6-11 years) : 

Experiment: magic glass (6-11 years) 1. Children put some water into a glass. Then they put a piece of paper onto the glass. You need: sugar salt vinegar sand grains oil

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3. The piece of paper is stuck on the glass. The water stays in the glass. 2. They turn the glass around and they look at what happens.

Experiment: flower of a lotus (7 and 11 years) : 

Experiment: flower of a lotus (7 and 11 years) 1.They cut the paper in the shape of a lotus flower. 2. They fold the petals in. They put the lotus flower on the water. You need: scissors paper water bowl

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3. The lotus flower opens because the water travels through the paper and it makes the petals heavy.

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1. First they pour water in the plastic bottle. And they color it with ink. 2. Then they pour in some oil. You need: a plastic bottle ink water some oil a fizzy pill Bubbles in oil (10-11 years old)

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4. A lot of bubbles come out because of the carbon dioxide emitted from the fizzy pill. 3.Then they add a fizzy pill. And what happens?

A watermill(12,13 year olds) : 

A watermill(12,13 year olds) Material: 6 small plastic spoons a wooden stick 20 cm long 2 small yoghurt pots some glue

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Process: We divide the round side of the cork into 6 equal parts. We prolong the lines from circuit per rim of cork and we produce a notch for shoulder blades with knife. We put little glue to every cut and we stick a small spoon in it. We pierce the cork through the center and we insert a stick into hole. We pierce also both small yoghurt pots on lower part (above bottom). We give the short wooden stick through the hole in the small pots.

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We tested out watermills on the nearby brook.

Experiments by: Primary School Drska, Slovenia : 

Experiments by: Primary School Drska, Slovenia Presentation made by students: Laura Tratnik Nejc Zupančič Skrt Vito Žmavčič Mentor: Mrs. Tina Šenica

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