What causes wind (Hot air rises) – Wind and weather Science
Hot air balloon - hot air rising is what causes wind Hot air is lighter than cold air When something is hot, its molecules are farther apart than when it is cold. When air [...]
Hot air balloon - hot air rising is what causes wind Hot air is lighter than cold air When something is hot, its molecules are farther apart than when it is cold. When air [...]
This globe shows the equator running around the widest part of the Earth. Where is the equator? The equator is an imaginary line running around the widest part of the Earth, [...]
A tornado in a bottle You can make your own tornado to see how it works. Fill a one or two liter bottle, like a soda bottle, with water. Add a bunch of [...]
See how the degrees match up. To prove to yourself what temperature water freezes and boils at, fill a pan with ice from the freezer. Stick a thermometer in it (not a fever thermometer! Use [...]
A cloudy glass of water You can see for yourself that blue light scatters more than red light. This is the same way that John Tyndall showed why the sky was [...]
Still in their coats on a sunny day(Thanks to [seattle + beyond]) To see what a difference it makes whether sunlight hits the Earth directly or at an angle, just think about a sunny day in summer and [...]
Track how long the days are and how warm it is at different places all over the world You can track the changing seasons for yourself. Try writing down in [...]
People driving cars in the rain Some of the tiny particles inside the clouds - the cloud seeds - are made of pollution from cars and factories. They're little particles [...]
A lot of rubber balloons. You can create your own static electricity and then discharge it like a tiny lightning bolt. Take a rubber balloon (just a regular balloon) and [...]
Making your own hot air balloon (Thanks to American Aircraft Modeler) How to make a hot air balloon You can make your own tiny hot air balloon to see how [...]