New PDF release: Ancient Science: 40 Time-Traveling, World-Exploring,

By Jim Wiese

ISBN-10: 0471215953

ISBN-13: 9780471215950

Dig into the technology of precedent days and unearth outstanding discoveries!
* have you questioned the place paper comes from, who made the 1st recognized maps, or how the traditional Egyptians have been in a position to construct the pyramids?
* do you want to make your personal sundial, notice tips to realize earthquakes, or learn how to write in hieroglyphics?
* Are you searching for nice rules on your subsequent technology reasonable venture?

If you spoke back "Yes" to any of those questions, then historic technological know-how is for you! From Greek lighthouses and Roman bridges to chinese language kites and Mesopotamian cleaning soap, you'll examine the various maximum clinical discoveries and the folks who brought them to the realm. Dozens of fun-packed actions assist you see for your self how the earliest people cultivated vegetation, why tools make varied sounds, how fireworks get their explosive energy, and lots more and plenty extra. the entire tasks are secure and straightforward to do, and all you would like is daily stuff from round the condo. So step again in time and take an grand trip with old technological know-how!

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Extra resources for Ancient Science: 40 Time-Traveling, World-Exploring, History-Making Activities for Kids

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The air displaces the water in the bottle and the diving bell rises back to the surface of the water. If you use an aquarium pump, as in More Fun Stuff to Do, you achieve the same results, only you use a mechanical device to do the work. This is similar to the way air is pumped to divers in more modern diving bells and diving suits. ANCIENT SCIENCE IN ACTION The diving bell was an early invention to help humans extend their time under water. Divers swam into these submerged bells to get air so they didn’t have to return to the surface for each breath.

51 PROJECT 3 Eureka! he Greek scientist Archimedes is said to Thave discovered a famous scientific principle while taking a bath. He observed that when he lowered his body into a bathtub filled to the top with water, the weight of the water that overflowed the tub was equal to his own weight. ” What he had found became known as Archimedes’ principle. Try this activity to see how it works. Materials cooking pot plastic tub water rock string spring scale (available at most hardware or sporting goods stores) jar (without its lid) Procedure 1.

Set the jar on the table and observe. What happens? More Fun Stuff to Do Try the experiment again, only this time use warm water. How does the use of warm water affect the results of your experiment? Explanation When you add oil to water, the oil will sit on the surface of the water. When you shake the solution, the oil and water will initially mix, but after you set the jar on the table, the oil and water will again separate. When you add soap to the water and oil and shake the jar, the oil will mix with the water again, but this time, after you set the jar on the table, most of the oil and water will not separate.

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Ancient Science: 40 Time-Traveling, World-Exploring, History-Making Activities for Kids by Jim Wiese

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