Science Facts For Kids
Most children search for scientific facts. They enjoy dressing up like a scientist, believing that they are inventing something special.
Well, for all those budding scientists, here are some interesting science facts for kids…
Whenever a thing moves, something makes it move. Something is either pushing it or pulling it, the way you may pull something or then pull something. The push or the pull that makes a thing move is called ‘force’. For example, a force made by you carries the swing forwards and then upwards. When there is no push, the swing will come to a stop.
There is an invisible something that pushes you when a car starts and stops.
What is this?
It is called as inertia. Inertia is the name given to the way objects behave, both when they are still and when they are moving. So, inertia holds you back and it is inertia that keeps you moving.
When you want to slow down your bicycle, you use the brakes. As you pull the levers towards the handlebars, the brake pads rub against the wheels and slow down the bicycle.
The rubbing of the brake pad against the wheel is called friction. In addition, friction is what makes moving objects slow down.
The wings of an airplane have a special shape. They are curved on top and straight beneath. This helps to lift the plane into the sky. As the plane begins to move, the wings begin to cut through the air.
The air moves above the curved top of the wing and beneath the straight bottom. The air moving over each wing pushes down on it. In addition, the air moving underneath lifts it up.
Sound waves spread out like a ripple on a pond. The further they travel the weaker they become.
An engine’s power can be measured in horsepower. A 150-horsepower engine is as strong as 150 horses.
Solid wooden wheels were very heavy, so a lighter wheel had to be invented. The outer rim was joined to the central wooden axle hole by rods called spokes. The wooden circle through which the axle poked was called a hub.
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