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Archives for 2010

Gravity

By Janice VanCleave

The gravity diagram models the action-reaction forces of gravity between Earth and a person. While the forces are equal the masses of two objects vary greatly, with Earth being the winner with the larger mass.

  What is Gravity? How is Gravity Measured? Gravity is the force of attraction between two bodies due to their mass and distance from each other. The magnitude of the gravitational force between two objects can be determined using the following equation: Newton’s Equation for the Force of Gravity F = G x m1 x […]

Filed Under: Physics Tagged With: gravity, Newton's Gravity Constant, weight

Science Project Index

By Janice VanCleave

If you are starting a science project, I have a few suggestions as well as ideas for developing specific topics. First: Check out the Meet Me @ the Corner Science Fair Video. This is a video that I made with the director of Meet Me At the Corner–It was fun and I know that you […]

Filed Under: Science Projects

Circuit: Bulbs in a Series

By Janice VanCleave

Question: What affect does the number of bulbs in a series have on the brightness of each bulb? Discover the Answer for Yourself The materials needed for this investigation can be purchased at an electronics store, such as Radio Shack. Materials size C battery, 2 flashlight lamps with screw base, “C” battery holder with color-coded […]

Filed Under: Physics

Experimental Science Fair Project Overview

By Janice VanCleave

Bird’s Eye View: Experimental Science Fair Project Science Fair Projects are entries in a contest. Contests have rules. If your want to get a good grade on your entry, you must follow the rules. A summary of the requirements for an experimental science fair project is : The project must present a hypothesis for a […]

Filed Under: Science Projects

Werewolves

By Janice VanCleave

Question: Are there really people who change into wolves–werewolves? Answer: My answer is no. Werewolves are myths, which are stories that are passed on from generation to generation and are of unknown authorship. This myth dates back to the Ancient Romans and maybe even earlier. While the myth is not true, there are some science […]

Filed Under: Biology

Thomas Edison Index

By Janice VanCleave

Biography Information 1. As a boy, why did Edison sit on goose eggs? 2. Thomas Edison’s Childhood 3. Thomas Edison’s Family 4. Thomas Edison’s Electric Lamp 5. Thomas Edison’s Inventions Investigations 1. How does the shape of an egg affect its strength? 2. Eggshell Shape: Strength Activity 3. Series Circuit: Open vs. Closed 4. Bulbs […]

Filed Under: Physics

Thomas Edison’s Childhood

By Janice VanCleave

Thomas Alva Edison (1847-1931) was born in Milan, Ohio. He was the seventh and last child of Samuel Edison, Jr. and Nancy Elliot Edison. His mother was a former schoolteacher; his father had no specific training and was considered a jack-of-all-trades, meaning he could do many different kinds of jobs. When Thomas was seven, his […]

Filed Under: General Science

Edison’s Light Bulb

By Janice VanCleave

Thomas Edison had seen great changes in the world in his lifetime, and he was responsible for many of them. When he was born in 1847 there was no electricity in homes. In 1878 he formed the Edison Light Company, with the financial support of some of New York’s richest businessmen, to research the electric […]

Filed Under: Physics

Edison Index

By Janice VanCleave

Tomas Alva Edison’s Biography

Filed Under: General Science

Wolves vs. Dogs

By Janice VanCleave

Question: What is the difference between wolves and dogs? Answer: Canines have dog-like appearances and both wolves and dogs are canines. Foxes and coyotes are also canines. A very important difference is that dogs are domesticated and wolves are wild animals. This means that dogs make good pets and wolves are wild and not suited […]

Filed Under: Biology

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Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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