Ask Science and Arts Magazine for Kids and Children

Ask Science and Arts Magazine for Kids and Children April 2016

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

United States
Cricket Media, Inc.
Lire plus
3,62 €(TVA Incluse)
22,68 €(TVA Incluse)
9 Numéros

dans ce numéro

2 min.
nosy news

Feel-Good Footwork You might feel silly doing the chicken dance, but scientists have discovered that it could be doing your brain a lot of good. In Brazil, scientists studying the brain taught dance moves to high-school students. Then they divided the kids into groups. Some groups danced in sync, doing the same moves at the same time. In other groups, scientists told the kids to dance separately and do their own thing. Later, when researchers squeezed the students’ arms with a blood-pressure cuff, kids who did the same moves as their group reported less pain. The group dancers also reported feeling closer to the other people in their group than those who danced near each other but did their own thing. The scientists think dancing together makes our brains send out feel-good chemicals…

7 min.
curious clouds

So what is a cloud, exactly? Clouds Are Floating Water Clouds are made of water. But they aren’t vapor, individual molecules of water flying around as a gas. Clouds are made of itsy-bitsy water droplets. Each droplet is made of many water molecules stuck together around a tiny speck of dust or salt. How small are cloud droplets? If you filled a shoebox with cloud, you would have more than 100 billion cloud drops. Clouds Recycle Where do clouds come from? As the sun warms the Earth, water evaporates from lakes, rivers, oceans, and the leaves of plants—and from you, when you get sweaty. When water evaporates it makes vapor, individual molecules floating around. Air carries the water vapor around. As warm air rises, it takes water vapor from the surface with it. Air cools as it…

1 min.
cloud spotting

high clouds Cirrus High, wispy streaks of cloud, full of tiny ice crystals Cirrocumulus Rows of cotton fluff very high up Cirrostratus Thin, gauzy veil of cloud, sometimes forming a halo around the sun middle clouds Nimbostratus Gray skies with a steady rain or snow, but no thunderstorm Altocumulus Little white clouds scattered over the whole sky like sheep on a meadow Altostratus Hazy sheet of cloud through which the sun can be seen low clouds Stratus A low, flat bank of cloud—the lingering cloud of a gray day Cumulus A fluffy cotton-ball cloud with a flat bottom Stratocumulus Clumpy clouds that join up into a sheet…

1 min.
weird clouds

Lenticular clouds These disk-shaped clouds are often mistaken for flying saucers. They form near mountains and mesas, as moist air flows up and over the top. These clouds look like they’re hanging in the air—but new cloud is constantly forming at the front and evaporating at the back. Noctilucent clouds Their name means “night shining,” and that’s just what these clouds do. These thin, icy clouds are so high up that they still catch light from the sun for awhile after it has set for people below. Mammatus clouds Sometimes tall clouds develop lumpy undersides when cold air from the top of the cloud sinks down into moist air below, making it condense. Usually the bigger the cloud, the bigger the lumps. Virga These little tails of cloud hanging down are ice crystals falling out of high…

1 min.
the cloud maker

Artists have always loved to paint pictures of clouds. But Berndnaut Smilde is a cloud artist of a different kind. He makes real clouds, inside rooms. Smilde’s cloud sculptures only last about 10 seconds, then—poof—they’re gone. When he makes a cloud for an audience, it’s a fleeting moment they all share. Then all that’s left is a photograph. He calls his indoor clouds “temporary sculptures of almost nothing.” To make his clouds, Smilde first covers air vents so that the air is still and cool. Then he makes the air very damp by spritzing it with water from an ordinary spray bottle. Then it’s showtime. He triggers a puff of smoke from a fog machine like the kind used in theaters. This sends out a burst of fine smoke particles. Water vapor in…

6 min.
kangroos, clouds, and coffee

Lisa Dabek hopes so. She works at the Woodland Park Zoo in Seattle, Washington, and she’s come to Papua New Guinea to study her favorite animal, the elusive Matschie’s tree kangaroo. Even with binoculars, the small, shy marsupials are hard to find. Their reddish-brown fur blends in perfectly with the moss growing thickly on the trees. A Face in the Forest Surprisingly, 10 different species of kangaroos live in trees instead of hopping along the ground. Matschie’s tree kangaroos live in the mountain cloud forest of Papua New Guinea. Weighing about 20 pounds (9 kg), these kangaroos are great climbers, but they’re kind of lazy. They spend 15 hours a day sleeping or lounging in trees, munching on leaves, moss, and bark. Sometimes they take a giant leap to the ground to nibble…