Science, Nature & How It Works
epub |eng | 2021-01-15 | Author:Kate Messner [Messner, Kate]
Tarantulas are large spiders that live all over the world, and a few species make their homes in the deserts of California. They eat insects and sometimes lizards, and hunt ...
( Category:
Science, Nature & How It Works
January 9,2023 )
epub |eng | 2019-07-16 | Author:Jennifer Swanson [Swanson, Jennifer]
SIMPLY HELPFUL Simple machines make our lives easier. They help us by transferring a load, changing the direction of a force, and making things easier to lift. They are part ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | | Author:Laura La Bella
Will humans thrive in a world where robots become ever more numerous? Will the robotic revolution take over completely, displacing workers until only highly skilled jobs are left for the ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | 2020-11-18 | Author:Denise Lewis Patrick
About That Lightbulb . . . At every step in the history of artificial light, many people worldwide were working on similar ideas at the same time. Gas light was ...
( Category:
Inventions & Inventors
January 8,2023 )
epub |eng | 2020-11-17 | Author:Heather Alexander
As she was finishing up her time in the Peace Corps, one of her friends from Stanford called her. He now worked as a mechanical engineer for NASA. âGuess what?â ...
( Category:
Aeronautics & Space
January 8,2023 )
epub |eng | 2021-01-15 | Author:Liz Lee Heinecke
BALLOONS, PYRAMIDS, AND DINOSAURS Luis Walter Alvarez loved piloting airplanes. He helped develop high-altitude particle sensors carried by balloons and aircraft. Alvarez also traveled to Egypt to search for hidden ...
( Category:
Physics
January 8,2023 )
epub |eng | 2022-01-15 | Author:Liz Lee Heinecke
FIG. 15 Check the plastic bag again and let the carbon dioxide gas out so that it doesnât explode. Throw the bag away. 15. Bake the rolls at 375°F (190°C, ...
( Category:
Chemistry
January 8,2023 )
epub |eng | 2019-09-20 | Author:Paula M. Wilson [Wilson, Paula M.]
DID YOU KNOW? Mini pigs shed their hair, called âblowing their coat,â once or twice a year. New hair starts to grow in soon after the old hair is gone. ...
( Category:
Zoology
January 8,2023 )
epub |eng | | Author:Kristi Lew
In a nuclear power station, the heat generated during fission reactions is captured and used to heat water to a boil. The boiling water produces steam that turns large blades ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | | Author:Greg Roza
Finding and Refining Iodine Iodine is the sixty-fourth most abundant element on Earth. The manner in which iodine is refined depends on where it is collected. The first important commercial ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | | Author:Laura La Bella
Tellurium A brittle, silvery white metalloid that looks a lot like tin, tellurium is chemically related to selenium and sulfur. It is primarily used in alloys and as a semiconductor. ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | 2022-01-15 | Author:Dawn Casey
Natureâs Plenty Today, most farms are made to feed lots of people. To do this, farmers remove trees and hedges to make one large field and grow a single crop, ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | 2019-07-17 | Author:Andrew Langley [Langley, Andrew]
Hubble Space Telescope A new planet hunter launched into space in 2013. The European Gaia telescope has a big mission. Scientists will use it to survey more than 1 billion ...
( Category:
Aeronautics & Space
January 8,2023 )
epub |eng | 2019-07-16 | Author:Alicia Z. Klepeis [Klepeis, Alicia Z.]
Astronauts on the ISS exercise about two hours a day to keep muscles and bones from getting weak. CHAPTER FIVE A LUNAR COLONY People have dreamed of living on the ...
( Category:
Science, Nature & How It Works
January 8,2023 )
epub |eng | 2019-07-15 | Author:Ailynn Collins [Collins, Ailynn]
Lunar Orbital Platform-Gateway SPACE FACT: SpaceXâs first space traveler will be online fashion billionaire Yusaku Maezawa. SpaceX plans to take Maezawa around the moon in 2023. SPACE TOURISM Imagine if ...
( Category:
Science, Nature & How It Works
January 8,2023 )
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