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In many parts of the world, winter temperatures drop low enough to make rivers and lakes freeze. And in those same parts of the world, where even those waters freeze, the ocean waters will not. Think ...
Hipervinculo Ciencias Sociales
Are you a pink fanatic or a cool blue type of kid? Everyone has an opinion about colors. Some people wish they could paint their walls orange while others wish their clothes would all be purple. Step ...
Hipervinculo Ciencias de la Tierra y Medioambiente
How many times have you peeked out the window on a rainy day and seen a rainbow (or two)? Rainbows usually only appear after the rain because the sun's rays bounce off the drops remaining in the atmos ...
Hipervinculo Química
You know how to light a candle. It’s easy, right? You light the lighter, place it to the wick, and voila! You’ve lit the candle…the conventional way. But, what if you wanted to impress your friends at ...
Hipervinculo Biología
Your eyes are amazing organs. Look in the mirror, and you’ll see three colors in your eyes: the white part (sclera), the colored part (iris), and a small black dot (the pupil).The iris helps control t ...
Hipervinculo Química
By now, you've probably heard of the explosive reaction that occurs when you mix baking soda and vinegar. That's old news. However, do you know what happens when you add a balloon to the mix? Discover ...
Hipervinculo Química
If you think you've outgrown crayons, you're probably wrong. The beloved art tools aren't just good for creating colorful masterpieces -- they're also great for science. Using an oven and some old cra ...
Hipervinculo Química
Soap is an amazing combination of chemicals that go through some pretty cool changes when you use it. Think about it. Have you noticed how a bar of soap gets smaller over time? Have you noticed what h ...
Hipervinculo Química
Chemistry produces some of the most amazing compounds. You’ve probably used vinegar and baking soda to make a volcano. You’ve definitely made your own foam with soap and water.Foam is usually created ...
You may be one person, but you're made up of millions and billions of cells! Have you ever thought about all the tiny, microscopic cells that make up you? While your cells are much too small to see wi ...
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