Home » Science Projects » Science Project on “Heat Retaining Bricks”, Project Experiment Topics on Environmental Science for Class 8, 9, 10 and 12 Students.

Science Project on “Heat Retaining Bricks”, Project Experiment Topics on Environmental Science for Class 8, 9, 10 and 12 Students.

Heat Retaining Bricks

Materials Required:

1. Soil
2. Water
3. Bowl
4. A large mixing spoon
5. Straw or dry grass
6. Two thermometers

Many people live in houses made of wood. In South-western United States and in Mexico, where there are not many trees, people build houses made of mud bricks called Adobe.

Even the ancient Babylonians and Egyptians, who lived in treeless desert areas, used Adobe bricks.

These bricks were made of sand clay, water and straw. They used to bake the bricks in the sun for several weeks. Then they used these dried, ‘cured’ bricks to build their houses.

Adobe houses remain warm in the evening and cool in the daytime. Now let us see, that if a mud brick is warmed by the sun, for how long will it give warmth after the sun goes down?

Gather some straw. If you don’t have straw, you can use dry grass.Put the straw, soil and water in a bowl. Mix the contents properly.

Open the top of an empty milk carton and pour the mud mixture from the bowl into it. With the help of a pencil, make a hole in the mud.

Loosen the mud by moving the pencil in a small circle. Leave the pencil in the carton. Put the milk carton near a window. Ample sunlight should reach the carton. Leave it to dry for several days.

When the brick is firm and dry, remove the pencil and peel off the carton. Leave the brick in sunlight for one hour. Then put the brick in shade.

Put a thermometer into the hole of the brick. This will measure the temperature inside the brick. Put another thermometer nearby to measure the temperature of the air, outside the brick. Will the thermometer inside the brick show a higher temperature than the one outside the brick?

Wait for few minutes. Then, read and write down the temperature reading of the thermometer that is inside the brick.

Also, write down the temperature reading of the thermometer that is outside the brick. Will the thermometer inside the brick measure a higher temperature than the one that is outside the brick?

Wait for few minutes and then read and write the temperature readings of both the thermometers again.

How long does it take for both the thermometers to show the same temperature?