Thursday, April 7, 2016

A HOMEMADE MAGNIFYING GLASS!

Lets see how we can make a magnifying glass in case of an emergency

Materials Required
  • A magazine page with small print
  • A clean empty olive bottle
  • Water
Instruction
Fill the olive jar with water to the brim. Screw on the cap. Make sure the lid is tight.
Now hold the water filled olive jar above the small printed text.
The text is now enlarged and inverted.

The water filled olive jar acts like a LENS!

Monday, March 28, 2016

HOW ARE CLOUDS FORMED???

Ever wondered how clouds are formed? Let us perform an experiment to show what happens!

Materials Required
A glass jar
Hot water
Thin cloth
Crushed ice
A rubber band

Instructions
Fill the jar with hot water. Let the glass get warm.
Stretch the cloth over the opening and wrap the rubber band around the cloth.
Place the crushed ice on top of the jar.

Observation: We observe the formation of clouds within the jar.

What is happening?
This model shows us how the clouds are formed. When warm, moist air rises from the earth, it meets the colder air higher in the atmosphere. The water vapour in the warm air condenses and form clouds.