books children read children's reading books

books children read children's reading books

EFFECT OF AIR PRESSURE:

PROCEDURE

1. Put books on the table opposite to the loins.
2. Place the paper over and into the books as far apart as possible.
3. Put your head at the books and blows between the two books trying to lift the sheet with the air.
4. Record your observations and try to explain why you can not move the blade.

Material

Two board books
A sheet of letter size paper
A table or stand to place the books

Track
By blowing air moves which decreases the pressure under the sheet.

EFFECT OF AIR PRESSURE

PROCEDURE
1. Light a burning piece of paper and drop it into the bottle.
2. Before placing the egg goes into the mouth of the bottle (with the most acute down).
3. Record your observations and try to explain why he gets the egg.

MATERIAL

An egg cooked and peeled
A glass bottle
Matches
A piece of paper



Track
Air expands when heated, contracts when cooled. The egg placed in the mouth of the bottle serves as a lid.

CONSTRUCTION OF A BAROMETER HOME

PROCEDURE

1. Fill the water bottle and place it inverted into a dish of water, preventing water escaping from the bottle.
2. Place the holder to stop the bottle.
3. Mark the water level in the bottle.
4. Place a scale.
5. Place the device away from heat so that water does not evaporate quickly.
6. Daily note the level which has reached the water.
* To prevent water from evaporating dish can add a few drops of glycerin.

MATERIAL

A plastic bottle of 2 liters
A strip cut from a sheet of graph paper to scale.
A bowl.
A support (may be a rule.)
Water.

* Glycerin (optional)

SOME EASY EXPERIMENTS

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