Explain how wind is connected to convection and radiation.

The earth’s atmosphere is heated through radiation by the sun. This means the wavelengths of the sunlight are absorbed by the molecules hence exciting them. When a mass of air is heated by radiation,  it becomes less dense creating an area of low pressure. The air rises and cooler air mass moves in to replace the rising air. This is how winds are created.

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation:

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