A Water Turbine Materials Required: A Cork A Knitting Needle Four thin pieces of plastic Proximity to a tap Bore a hole through the center of a cork and insert a knitting needle through it. Make six slits on the surface of the cork and wedge thin slices of plastic into each slit. Hold the turbine under a steam of water. The turbine rotates as the water hits the vanes. The...

Different Temperatures Materials Required: A thermometer A watch Paper and pencil Since the heat energy in a room is not equally distributed, different places in the same room have different temperatures. Select a few different locations in the room. They should be completely different from each other. For instance, you can select high places as also low ones, inside and outside walls, so that you get a clearer picture. Prepare a...

Cold Blooded Materials Required: Arts and crafts supplies All animals require the sun to warm themselves and carry out their normal processes. Even cold blooded animals like turtles, snakes and iguanas need the sun to maintain their body stability. As a matter of fact, insects like the grasshopper do not chirp, if the temperature falls below 17° Celsius, thereby displaying the great need of the sun. Make a list of all...

Calorie Count Materials Required: Research materials The human body survives on energy which is measured as calories. However, one should also remember that too much of calories taken in by the body are not good for it. Differentiate between different variations of the same food and judge the caloric intake of the same. For instance, measure the amount of calories contained in simple potatoes and then measure the amount of calories...

Altering Temperature Materials Required: Three thermometers A refrigerator Strings People know the usage of a refrigerator, but no one pays attention to the way, in which it functions. We know that it contains air inside it, but we don’t know where the air goes. It actually moves out into the room. The refrigerator runs on electricity. There are special tubes inside it, which are known as ‘refrigerants’, which contain fluids that...

Absorbing Heat Materials Required: Two same-sized, clear drinking glasses An ice-cream soda A cola A table by a sunny window Two same-sized ice cubes A dark room Say you take two glasses at a birthday party and fill one with a cola and the other with plain ice-cream soda. Now you put an ice cube in each of the glasses. Which one, according to you, should melt first? Heat energy is...

Sheltered From Heat Materials Required: A thermometer A large shady tree Pencil and paper Heat energy received from the sun is mostly beneficial, for many reasons. However, there are also cases where the sun’s warmth and heat can cause a lot of problems to its end users. In winter, everyone loves to bask in the sunlight, but when the same amount of sun comes in through your window in summer, you...

Understanding Constellations Materials Required: Pencil and paper Some newspapers A Xerox machine A few helpers The ancient Greeks would group stars together into patterns, so that they could keep a track of how many stars there were in the sky. These patterns were later known as Constellations and are still in use by modern astronomy. These constellations were also given names, based on the kind of shapes that they formed. Similarly,...