Pressure is the amount of force that is exerted on something. Gravity causes pressure naturally. Water pressure is the force created by the weight of water. When you jump into a pool, you can feel the force pushing around you. Water pressure can push water through pipes and hoses. Here is an easy water pressure experiment. …
After finishing the Hovercraft and Friction experiment, you will be left with an empty CD case. Here is an upcycling idea. The empty CD case can be used in this gardening project. Grow a little indoor greenhouse full of grass in you kitchen. Like most plants, grass needs water, soil, air and sunlight to grow. …
Normally, paper clips do not fly into a hand that hovers over them. That is because the gravitational force pulls the paper clips toward the Earth. In the experiment, you will use a strong magnet to make the paper clips come upward into your hands. It’s almost like the paper clips can defy gravity. But …
Compasses are a very important tool explorers. They are useful when you go hiking, camping or other outdoor activities. They help you identify directions so you won’t get lost. Compasses work because there is a giant magnetic field surrounding us on Earth. Did you know that it’s very easy to make your own compass at …
Playing with magnets is always fun. We bought some very strong magnets recently and they are perfect to show what magnetic field looks like. Magnet attracts iron and the magnetism can act through many materials such as paper. When iron filings are spread over the magnets, you can see the outline of the magnetic force or …
Have you tried our popular experiment “Why is the sky blue?” experiment? Now the next question is, “If the sky normally looks blue, why are sunsets orange in color?” From the last experiment, we know that when light (representing the sun) passes through a clear fluid (representing air) holding small particles (representing dusts), blue is scattered …
Gravity is a force that sucks everything to the ground and keeps our feet firmly planted on the floor. What about center of gravity? Have you ever heard of it? The center of gravity of an object is the point around which all weight is balanced. In humans, it is often referred to as the …
