Download e-book for iPad: Ancient Science. 40 Time-Traveling, World-Exploring, by Jim Wiese

By Jim Wiese

Dig into the technology of precedent days and unearth extraordinary discoveries!
* have you puzzled the place paper comes from, who made the 1st identified maps, or how the traditional Egyptians have been in a position to construct the pyramids?
* do you want to make your individual sundial, observe the best way to become aware of earthquakes, or learn how to write in hieroglyphics?
* Are you searching for nice rules to your subsequent technology reasonable venture?

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

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Additional info for Ancient Science. 40 Time-Traveling, World-Exploring, History-Making Activities for Kids

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2. A machine may change the direction of a force. For example, a rope thrown over a tree branch can be used to lift a box. The box is lifted up by you pulling down on the opposite end of the rope. 3. A machine may multiply speed or distance. 4. A machine may multiply force. The amount by which a machine can multiply a force is called mechanical advantage. You can calculate the mechanical advantage of any machine by using the following equation: mechanical advantage = load force effort force Load force is the force needed to move the object without the machine, and effort force is the force needed to move the object with the machine.

Link one end of the spring scale through the hook. 2. With the wooden block flat on the table, pull the other end of the spring scale, moving the block along the table. Measure the force needed to move the block by reading the value from the spring scale and record the result. 3. Set one straw aside to use in Step 6. 25 cm) apart. 4. Place the wooden block on the straws near one side of the straws. Again pull the other end of the spring scale to move the block across the straws. Measure and record the force needed to move the block this time.

Along its banks grew a plant called papyrus, which the Egyptians beat flat so they could write on it as if it were paper. Beyond this fertile valley were deserts that kept invaders away, and that were also rich in natural resources such as gold and copper, and stones for building and for making jewelry. Egyptian scientists studied astronomy (the study of the sun and stars). Through their practice of mummification they learned about the internal organs and systems of the human body. They also developed hieroglyphics, one of the earliest written languages.

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

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