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Ask Science and Arts Magazine for Kids and ChildrenAsk Science and Arts Magazine for Kids and Children

Ask Science and Arts Magazine for Kids and Children

October 2019

Each themed issue of ASK invites newly independent readers to explore the world of science and ideas with topics that really appeal to kids: What makes wind? Where do colors come from? Were pirates real? Filled with lively, well-written articles, vivid graphics, activities, cartoons, and plenty of humor, ASK is science kids demand to read! Grades 3-5

国家:
United States
语言:
English
出版商:
Cricket Media, Inc.
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9 期号

本期

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nosy news

Tree Squid Surprise Amber is a clear yellow stone. It starts as tree sap, which drips down a tree, dries, and eventually hardens. Sometimes pieces of amber have prehistoric bugs trapped inside, caught as the sap dripped down the tree. But a little chunk of amber from Asia held an unusual surprise. Caught inside was an ammonite—an ancient relative of squid. Were sea creatures climbing trees 100 million years ago? Probably not. Researchers think this bit of amber may have come from a tree near a seashore. A blob of sticky sap fell onto the beach and trapped the ammonite, which had already washed up on the sand. Or maybe a storm blew the ammonite shell into the forest, where it met the sticky tree. Either way, the resin picked up other passengers…

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into the deep

Do you think of the ocean as twinkling blue water filled with fish? That blue zone is actually just a thin layer at the very top. Deep and Dark As you go deeper, the sunlight from above gets dimmer and dimmer. Below 1,000 meters, the ocean is completely dark. The dark water stretches down for another 2 to 7 miles (3 to 11 km). That makes the dark ocean the largest habitat on earth. It’s also the one we know the least about. Up and Down Every night, huge numbers of small fish, squid, and krill rise up to the surface to feed. During the day, they sink down to the dark zone to hide. Sperm whales breathe air, but they can dive 2,000 meters to hunt giant squid. Cuvier’s beaked whales can go even deeper. Cold Below…

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marie maps the sea

Young Marie Tharp thought her dad had the best job ever. He traveled around the country, making maps. His maps were special—they revealed hidden things. They showed where different kinds of soil were, and wet and dry places. That helped farmers know what to plant. He taught Marie to draw maps too. They moved around a lot. Marie changed schools often. But she loved to see the country, and draw, and play her violin. In college, Marie tried lots of different subjects. Her father always told her, “When you find your life’s work, make sure it is something you can do, and most important, something you like to do.” She took classes in art, and music, and math, and teaching, and geology. She couldn’t quite make up her mind. Then one day, her…

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the deepest dive

In 1872, two scientists set out to study the ocean. They sailed the seas on a ship called the Challenger, collecting animals and testing the waters. Wherever they stopped, they measured the depth by lowering a weighted line until it hit the bottom. In one place off the coast of Japan, the line just went down and down. It was the deepest place ever found. They called it the Mariana Trench. Many years later, another ship, also named Challenger, found the deepest part of the Mariana trench. They called it Challenger Deep, after the two ships. The bottom of the Challenger Deep is almost 7 miles (10,900 m) down. You could hide Mount Everest in it and still not reach the surface. Where did this deep place come from? The Earth’s surface…

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life in the dee

In the dark? Make your own light. Many animals in the deep sea make their own light. This trick is called bioluminescence. Some produce a glowing chemical called luciferin. Others keep glowing bacteria in pouches in their skin. They don’t stay lit up all the time. Most only glow when they need to. Glow to Hunt Anglerfish and dragonfish use lighted lures to attract prey. If a curious shrimp swims over...snap! Glow to Escape The red “fire-breathing” shrimp spits out a cloud of glowing goo to startle bigger fish that want to eat it. World of Big Teeth No plants or algae grow in the dark ocean depths. Animals here have to hunt each other, or rely on food falling from above. Drift Along Many animals drift through the water, using very little energy. This mysterious white creature was…

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secrets of the sea vents

Volcanoes in the Deep It all started in 1977, on an expedition to explore underwater volcanoes near the Galapagos Islands in South America. Scientists sent cameras down to the sea floor near where a new volcano was forming. There they found strange, tall chimneys made of rock. Out of the chimneys poured what looked like black smoke. But it wasn’t smoke. It was super-hot water filled with sulfur and other minerals. And then they got a big surprise. The sub's camera showed fields of giant mussels. Clams as long as a man’s foot. Tube worms as tall as a person. These hot chimneys were covered with life! The researchers called the towers “hydrothermal vents.” Hydrothermal means “hot water.” Since that first discovery, hundreds of vents have been found all over the world. They form…

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