How bicycle air pump works?
When you pump up your bicycle tires or football, you are making use of compressed air. Inside a bicycle pump is a small device called a valve. A valve allows a gas or a liquid to pass through it in…
DIY Smartkids123
How to make rocket balloon?
Blow up a balloon and then let it go. The force of the high-pressure air coming out of the neck makes the balloon rush aimlessly in all directions. This type of force pushing the balloon forwards is called thrust. It…
How do barometers work?
Look out of your window. Is the air moving? It is probably moving enough to make the branches on the trees sway slightly. The weight of this air pressing down all around the earth produces air pressure. If you live…
What is air pressure? – Solids, Liquids and Gases for Kids
The weight of this air pressing down all around the earth produces air pressure. It is probably moving enough to make the branches on the trees sway slightly.
What is an airfoil and How to Make an Airfoil?
What is an airfoil? When an airfoil moves through the air, it produces lift because the force of the air pushing down on its top surface is less than the force of the air from below. The uneven pressure causes…
How to Make a Pinwheel? – Projects for kids
How to Make a Pinwheel? You will need: a pencil a ruler a piece of thin cardboard, 4 in x 4 in (10 cm x 10 cm) a pin scissors a small bead a stick, about 10 in long (25…
What is Air Made of and Is It Possible to See Air – Air experiment for kids
About one-fifth of the air is oxygen. Human beings and other animals would not be able to survive without oxygen. When we breathe, our lungs take the oxygen we need from the air. Another very important gas in the air…
Solids liquids and gases for kids – What are gases?-
Have you ever wondered what everything in the world is made from? The answer is matter.Matter is anything that takes up space and has mass.There are millions of different things in the world, but there are just three different forms of…
What are Tires Made out of?
What are Tires Made out of? Think of all the different things that can be made from rubber.There are gloves, rubber bands, boots and shoes, fan belts for cars, inflatable boats, bottle stoppers, balls, tires, and foam mattresses.The rubber used…
How is Crude Oil Refined?
At the refinery, thousands of tons of oil are turned into useful substances every day. What is Crude Oil? Crude oil is a mixture of many different chemicals called hydrocarbons. Hydrocarbons are useful because they can be used to make…