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Showing posts with the label CURIOUS_KIDS

Why don’t female crickets chirp?

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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why don’t female crickets chirp? – Avery, age 8, Los Angeles Insects communicate in lots of different ways, for many reasons. Some, such as butterflies and beetles, use color, patterns and other visual cues to attract mates or warn potential predators that they don’t taste very good. Others, like fireflies, use bioluminescence – light that they produce in their bodies – to attract potential mates....... Read Full article on HadNews

Why aren’t there solar-powered cars?

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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why aren’t there solar-powered cars? – Emma, age 16, Springville, Utah Solar cars exist. The best place to see them is the World Solar Challenge, a race that’s held every two years in Australia. Competitors have to drive about 1,870 miles (3,000 kilometers), from Darwin on the country’s north coast to Adelaide on its south coast, using only energy from the Sun. Many cars that compete in this race ...... Read Full article on HadNews

Why do trees need sunlight? An environmental scientist explains photosynthesis

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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why do trees need sunlight? – Tillman, age 9, Asheville, North Carolina Trees need sunlight for the same reason you need food. The energy from the Sun’s rays is a crucial ingredient in how plants make their own food that helps them power all their cells. Since trees don’t harvest or hunt food, they have to produce their own. The way they make their food is a unique and important chemical process cal...... Read Full article on HadNews

Why does a leap year have 366 days?

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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why does a leap year have 366 days? Does the Earth move slower every four years? – Aarush, age 8, Milpitas, California You may be used to hearing that it takes the Earth 365 days to make a full lap, but that journey actually lasts about 365 and a quarter days. Leap years help to keep the 12-month calendar matched up with Earth’s movement around the Sun. After four years, those leftover hours add u...... Read Full article on HadNews

Why do people have different tastes in music? A music education expert explains why some songs are universally liked, while others aren’t

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Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why do we have a certain taste in music, different than others? – Shirya R., age 11 When you turn on the radio, you might hear songs you like and other songs you just skip past. But even the songs you don’t like usually have some fans. Maybe you don’t like older music, but your parents or grandparents might love it because they grew up with it. It’s familiar and comfortable. When you’re older, you’l...... Read Full article on HadNews