Dear Amy: Why is the nervous system important? — Tanmay, Mumbai, India
Dear Tanmay: The nervous system is composed of the network of nerves that run through the body, the spinal cord and the brain. This system is super important, because without it we wouldn't be able to do anything! Think of the brain as the control center for the body. The nervous system interacts with and monitors all the body’s systems. For example, the brain regulates how quickly food moves through the digestive system. To learn more, check out http://faculty.washington.edu/chudler/organ.html.
Dear Amy: How are rain, lightning and thunder created? — Brianna, Titusville, Fla.
Dear Brianna: The answer is in the clouds. Clouds are made of tiny water droplets or ice crystals. If these droplets become large and heavy enough, they fall to the ground as precipitation, such as rain, sleet or snow. Water particles colliding inside a cloud create an electrical charge. If the charge is large enough, it can result in lightning and thunder. For more details, visit http://skydiary.com/kids/lightning.html.
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