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Hipervinculo Biología
Molecules, as you may already know, are groups of atoms bonded together. Water, or H2O, is a molecule made of two hydrogen atoms and one oxygen atom. The oxygen gas we inhale (O2) is a molecule made o ...
Hipervinculo Ciencias de la Tierra y Medioambiente
Normally, we throw all of our compost into one big pile, and use it to fertilize the garden. However, it stands to reason that different types of compost have different effects on plants. This project ...
Hipervinculo Física
Steam, which is the gaseous version of water, can be used to power trains, lights in buildings, and your very own model boat! Learn how to make a steam powered rocket boat to see Sir Isaac Newton's th ...
When you send your trash to the landfill, what happens to it? It may get buried under loads of landfill waste. If some of your waste is organic material like vegetables and fruit, this means that it w ...
Digestive enzymes help your body break down your food. It’s hard to obtain many human digestive system enzymes (without vomiting, that is!), but luckily, one of them is sold as a tablet in many drug s ...
Hipervinculo Biología
Plants that live outside are often watered by the rain, but indoor plants are usually given tap water. Water, along with soil and light, is one of the three essential elements needed to help plants gr ...
Hipervinculo Física
In this experiment, you will be making your own paper flashlight by conducting electricty with graphite. What metals are best for conducting electricity? Why is graphite not the best conductor? Why is ...
Hipervinculo Física
In this experiment we make a fireproof balloon. What makes the balloon pop when there is no water in it? What prevents the water balloon from popping? Does the rubber have anything to do with this rea ...
Hipervinculo Geología
Huff, puff and blow as hard as you can—do you think you can blow down a sand castle with your mighty breath? Blowing air erodes—wears away—sand and dirt. In Three Little Pigs, houses of straw or twigs ...
Hipervinculo Biología
Has your flashlight ever stopped working because the batteries were dead? It’s no fun walking around in complete darkness. Batteries are everywhere—in our toys, in our cars, in our flashlights and cel ...
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