What Are Clouds Made Of?
Clouds are made up of very tiny drops of water or tiny crystals of ice that float in the air. Clouds form when warm air, containing moisture evaporated from the...
Read MoreClouds are made up of very tiny drops of water or tiny crystals of ice that float in the air. Clouds form when warm air, containing moisture evaporated from the...
Read MoreWhy Does the Sun Look Red at Sunset? Sunlight, before it reaches our eyes, must pass through the Earth’s atmosphere. The dust and water particles in the air...
Read MoreThe daytime sky is blue because of what happens to sunlight as it enters the Earth’s atmosphere. When the Sun is low near the horizon as it rises or sets, the...
Read MoreUsually you sneeze to get rid of an irritation in the air passage of your nose. Various things can cause a sneeze. You may have dust up your nose, or you may have...
Read MoreTears flow from glands under the eyelid. Even though we are not aware of it, there are tears in our eyes all the time – even when we’re not crying. Every time we blink,...
Read More