Science Project on “Transfer of Energy”, Project Experiment Topics on Energy in Different Forms for Class 8, 9, 10 and 12 Students.

Transfer of Energy

Materials Required:

1. Two small-sized brick cartons
2. An old bucket
3. An old shirt
4. Sand
5. Water
6. Liquid white glue
7. A tablespoon
8. Two pencils
9. Two thermometers
10. Cardboard measuring around one square foot
11. Scissors
12. A stick
13. Paper
14. A watch

Heat energy is transitional i.e. it can be moved through an object, or transferred from one object to another.

To carry out the experiment, place two empty, pint-sized milk cartons on the side, with their spout ends facing upwards.

Now use the scissors to cut out the top sides of each carton. These cartons will now serve as moulds for two bricks.

Now use the cartons as measuring objects and fill one and a half pint cartons with sand and pour them into an old bucket.

Once this is done, add 6 ounces of liquid glue with 2 ounces of water. Prepare this mixture thoroughly. Now scoop out the mixture from the bucket and place it in an old shirt.

After this, squeeze out any excess water. Now transfer this mixture into each of the milk cartons.

In each of the moulds, push a pencil halfway into the mould, near one end and let it stand there. Now put the containers at the sunny window for a few days, so that they harden up. Keep rolling the pencils as the bricks dry, so that they are easier to remove later. Once the bricks solidify, remove the pencils and in the hole, place two thermometers.

Now place one brick near the window, so that it can get adequate sunlight. It should be placed in such a manner that the thermometer is placed away from the window. Construct a sun shield, by cutting a piece of plywood and placing it between the brick. While the front half receives direct sunlight, the other half is guarded from it. The other brick should also be placed in that room, but at a distance from the window.

Note down the temperature of both the bricks. Every five minutes, keep recording the temperature and make a final comparison, after an hour. The entire experiment will become clear to you.

Conduction

Conduction is the process by which heat moves within solids. If you heat one end of a metal bar, the molecules in that end begin to vibrate and as they do so, they come in contact with cold molecules and begin a complete series of vibrations in the cold molecules as well.

This effect is passed on from one molecule to the other and in no time the heat has travelled from one end of the bar to the other end.

All good conductors of heat are capable of attracting heat very quickly. This is why you feel that a metal object is cold when you touch it. In reality you feel it is cold because, on touching it, the object conducts the heat away from your hand.

Poor conductors on the other hand would mostly be warm to your touch because they are not capable of conducting heat from your hand.