Download Ancient Science. 40 Time-Traveling, World-Exploring, by Jim Wiese PDF

By Jim Wiese

Dig into the technological know-how of precedent days and unearth remarkable discoveries!
* have you puzzled the place paper comes from, who made the 1st recognized maps, or how the traditional Egyptians have been capable of construct the pyramids?
* do you want to make your personal sundial, observe easy methods to discover earthquakes, or discover ways to write in hieroglyphics?
* Are you searching for nice rules in your subsequent technological know-how reasonable venture?

in the event you responded "Yes" to any of those questions, then historical technological know-how is for you! From Greek lighthouses and Roman bridges to chinese language kites and Mesopotamian cleaning soap, you are going to examine a number of the 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 diversified sounds, how fireworks get their explosive energy, and lots more and plenty extra. the entire tasks are secure and simple to do, and all you would like is daily stuff from round the condominium. So step again in time and take an grand trip with historical technological know-how!

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

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Even a casket removed from the tomb of King Tut shows the use of glue in its construction. Try the following activity to make some glue for yourself. qxd 12/12/02 7:00 PM Page 33 Materials measuring cup milk measuring spoons vinegar saucepan stove mixing spoon paper towel strainer plastic bowl baking soda water paper adult helper Procedure 1. Place half a cup (125 ml) of milk and 1 tablespoon (15 ml) of vinegar in the pan. Have your adult helper gently warm the mixture on the stove while you stir occasionally with the spoon.

Place the pot in the plastic tub, then fill the pot with water until it just reaches the top. 2. Tie a string around the rock so you can lift the rock with the string. 3. Hook the spring scale to the end of the string, and use the scale to lift the rock off and weigh it in the air. Record the weight. 4. With the spring scale still attached to the rock, carefully lower the rock into the water-filled pot until it is completely covered. Water should flow from the pot into the plastic tub. 5. Record the weight of the rock now.

2. Tie a string around the rock so you can lift the rock with the string. 3. Hook the spring scale to the end of the string, and use the scale to lift the rock off and weigh it in the air. Record the weight. 4. With the spring scale still attached to the rock, carefully lower the rock into the water-filled pot until it is completely covered. Water should flow from the pot into the plastic tub. 5. Record the weight of the rock now. What happens to the weight of the rock when you weigh it in water?

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