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Boy finds large leaf

Science

How do boomerangs work?
There are two types of boomerang. One flies in a circular path and can knock you out. And the other one won't return to you. Both have at least two wings. They meet at an angle. And when thr...
There are two types of boomerang. One flies in a circular path and can knock you out. And the other one won't return to you. Both have at least two wings. They meet at an angle. And when thr...
There are two types of boomerang. One flies in a circular path and can knock you out. And the other one won't return ...
- Posted on June 4, 2014
Why are lakes freshwater and oceans saltwater?
Rain falls as fresh water. As this water flows downward, it ever so slightly erodes the rocks and soil. This causes a very slight amount of salt and minerals to dissolve in the water. Then they con...
Rain falls as fresh water. As this water flows downward, it ever so slightly erodes the rocks and soil. This causes a very slight amount of salt and minerals to dissolve in the water. Then they con...
Rain falls as fresh water. As this water flows downward, it ever so slightly erodes the rocks and soil. This causes a...
- Posted on June 3, 2014
What happens to you in space without a space suit?
Bad things happen, my friends. Lots of bad things. Our bodies depend on Earth's atmosphere to survive. Not just for oxygen. The atmosphere protects us from ultraviolet radiation. It regulat...
Bad things happen, my friends. Lots of bad things. Our bodies depend on Earth's atmosphere to survive. Not just for oxygen. The atmosphere protects us from ultraviolet radiation. It regulat...
Bad things happen, my friends. Lots of bad things. Our bodies depend on Earth's atmosphere to survive. Not ju...
- Posted on May 20, 2014
Can you make a man out of a monkey?
Humans and chimps are alike in many ways. We share 98 percent of our DNA with them. DNA is the basic building block of life, and includes the genes that make you who you are. You can't see DNA. ...
Humans and chimps are alike in many ways. We share 98 percent of our DNA with them. DNA is the basic building block of life, and includes the genes that make you who you are. You can't see DNA. ...
Humans and chimps are alike in many ways. We share 98 percent of our DNA with them. DNA is the basic building block...
- Posted on May 19, 2014
Which animal lives longest?
Sticking with recorded history, the answer might surprise you. It’s not elephants, which live for about 30 or 40 years. It’s not giant tortoises either, even though they often ripen to be well ...
Sticking with recorded history, the answer might surprise you. It’s not elephants, which live for about 30 or 40 years. It’s not giant tortoises either, even though they often ripen to be well ...
Sticking with recorded history, the answer might surprise you. It’s not elephants, which live for about 30 or 40 ye...
- Posted on May 15, 2014
How do microwave ovens cook food?
Here's a hint. It's really not an oven at all. Microwave ovens use microwaves. These include infra-red, visible light, ultraviolet and x-rays. Press start on your microwave oven. This fires...
Here's a hint. It's really not an oven at all. Microwave ovens use microwaves. These include infra-red, visible light, ultraviolet and x-rays. Press start on your microwave oven. This fires...
Here's a hint. It's really not an oven at all. Microwave ovens use microwaves. These include infra-red, visible ligh...
- Posted on May 14, 2014
Why do we sleep?
That's a good question. But we don't have a good answer. We know that sleep is important. Without it, we get tired and grumpy. We get headaches and can't think right. Our health suffers. Aft...
That's a good question. But we don't have a good answer. We know that sleep is important. Without it, we get tired and grumpy. We get headaches and can't think right. Our health suffers. Aft...
That's a good question. But we don't have a good answer. We know that sleep is important. Without it, we get t...
- Posted on May 13, 2014
How were the pyramids built? Maybe with water
It has been a been a mystery for centuries. How did the ancient Egyptians move the huge stone blocks needed to build the pyramids? Did they use sleds, ramps, wheels, logs? There's even a theory tha...
It has been a been a mystery for centuries. How did the ancient Egyptians move the huge stone blocks needed to build the pyramids? Did they use sleds, ramps, wheels, logs? There's even a theory tha...
It has been a been a mystery for centuries. How did the ancient Egyptians move the huge stone blocks needed to build ...
- Posted on May 2, 2014
Would you dash outside in -100? Scientists do!
Feeling chilly? Here's cold comfort: You could be in East Antarctica which new data says set a record for "soul-crushing" cold. Try 135.8 degrees Fahrenheit below zero. Better yet, don't try...
Feeling chilly? Here's cold comfort: You could be in East Antarctica which new data says set a record for "soul-crushing" cold. Try 135.8 degrees Fahrenheit below zero. Better yet, don't try...
Feeling chilly? Here's cold comfort: You could be in East Antarctica which new data says set a record for "soul-crush...
- Posted on December 10, 2013
Boy finds large leaf
Tommy Lindsey is 4 years old. He lives in Mt. Vernon, Washington. Last week he found a giant maple leaf. The leaf is almost as big as he is. His brother, Cooper, thought it would be c...
Tommy Lindsey is 4 years old. He lives in Mt. Vernon, Washington. Last week he found a giant maple leaf. The leaf is almost as big as he is. His brother, Cooper, thought it would be c...
Tommy Lindsey is 4 years old. He lives in Mt. Vernon, Washington. Last week he found a giant maple leaf. The l...
- Posted on November 5, 2013