By Jim Wiese
Dig into the technological know-how of precedent days and unearth awesome discoveries!
* have you questioned 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, become aware of the way to realize earthquakes, or discover ways to write in hieroglyphics?
* Are you searching for nice principles on your subsequent technological know-how reasonable undertaking?
for those who replied "Yes" to any of those questions, then historic technology is for you! From Greek lighthouses and Roman bridges to chinese language kites and Mesopotamian cleaning soap, you will examine a number of the maximum clinical discoveries and the folk 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 masses extra. the entire initiatives are secure and simple to do, and all you would like is daily stuff from round the residence. So step again in time and take an awesome trip with historic technological know-how!
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Additional resources for Ancient Science. 40 Time-Traveling, World-Exploring, History-Making Activities for Kids
After one minute, use the pen to mark the level of the water on the side of the bottom container. Make sure to mark the bottom of the water curve. Continue to mark the water level every minute until all the water is gone. 5. Tape the hole again and reﬁll the top container with the water from the bottom container. Remove the tape. You now have a water clock that tells time. You can estimate the times between the marks. qxd 12/13/02 2:33 PM Page 49 Explanation Water will fall from the top milk jug to the lower container.
Place the paper towel on the table. 2. Put the cereal on the paper towel. 3. Blow up the balloon and knot the end. 4. Rub the balloon several times on the wool sweater. 5. Bring the balloon near the cereal. Observe what happens. 65 cm) long. Are these small items attracted to the balloon? Explanation The cereal is attracted to the balloon, as are small bits of paper and dried grass. This experiment works because of static electricity, which is electricity that does not ﬂow. All objects are made of atoms, and every atom has an equal number of protons and electrons.
Although Thales did not know why this attraction occurred, he did write that it was an interesting phenomenon. What causes this attraction? Try this activity to ﬁnd out. Materials paper towel 1 teaspoon (5 ml) crispy rice cereal balloon wool sweater Procedure 1. Place the paper towel on the table. 2. Put the cereal on the paper towel. 3. Blow up the balloon and knot the end. 4. Rub the balloon several times on the wool sweater. 5. Bring the balloon near the cereal. Observe what happens. 65 cm) long.
Ancient Science. 40 Time-Traveling, World-Exploring, History-Making Activities for Kids by Jim Wiese