the experiments with water, air, soil

“The Experiments with Water, Air, Soil”

Šilutės r. Katyčių pagrindinė mokykla,,The Seasons”

Comenius Multilateral Project 2013 – 2015

The Rising Water

You need:

• a glass

• a plate or a bowl

• a candle

• some water (you can colour it using colour additives)

• a box of matches

The Rising WaterStep 1

• Pour some water into the plate.

The Rising WaterStep 2

• Light up the candle and put it into the water.

The Rising WaterStep 3

• Cover the candle with a glass.

The Rising Water

• The candle goes out because oxygen disappears. Therefore water flows under the glass.

Paper Flowers in the Water

You need:

• some paper flowers (you can make them from a colourful paper)

• a bowl with some water

Paper Flowers in the WaterStep 1

• Draw a flower and cut it out.

• Fold in the petals.

Paper Flowers in the WaterStep 2

• Put the paper flowers into the water. Their petals unfold.

Paper Flowers in the Water

• Paper absorbs water and swells. That makes the effect like a blooming flower.

The Hanging Water

You need:

• a glass

• some water

• a sheet of paper

The Hanging WaterStep 1

• Pour some water into a glass. Take a sheet of paper and cover the glass.

The Hanging WaterStep 2

• Press the sheet of paper and turn the glass upside suddenly.

The Hanging WaterStep 3

• Remove your hand from the sheet of paper. The sheet will not fall down and water will not pour out of the glass.

The Hanging Water

• The air pressure is stronger then the weight of water. It presses the sheet of paper, so water cannot pour out of the glass.

The Optical illusion

You need:

• a sheet of paper with 2 drawn horizontal arrows (they have to show the same direction)

• a glass

• some water

The Optical illusionStep 1

• Put an empty glass in front of the arrows. Do not change their direction.

The Optical illusionStep 2

• Pour some water into the glass – the lower arrow must be “under water”.

• You will see that the lower arrow changes its direction.

The Optical illusion

• Water makes the effect of the optical refraction.

The Jam – A Jar Experiment

• You need:

• a clean jar

• some soil

• some water

The Jam Jar ExperimentStep 1

• Take a clean jam jar and fill it (about a third of its amount) with the soil.

The Jam Jar ExperimentStep 2

• Add some water, stir and shake well.

The Jam Jar ExperimentStep 3

• Leave the jar for 1 - 2 hours.

The Jam Jar ExperimentStep 4

• The content settles down. You will see the different layers appearing in the jar.

The Jam Jar Experiment

• Soil is made up of a mixture of sand, silt, clay, rotted plant, pebbles.

• The jam jar experiment helps you to understand what the proportions of these are for the soil you work with.

The Jam Jar Experiment

Sand and the pebbles

The sand particles are the biggest and weigh more then silt.

Silt

The silt particles are smaller than sand and weigh less, so they appear over

the sand.

Clay

The clay particles are the smallest ones and they will be on the top

Water with floating organic materials

“This project has been funded with support from the European Commission. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained there in.”