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This page presents a "basement science" experiment which reveals the universality of gravitation by demonstrating the gravitational attraction between palpable objects on the human scale. The experiment deliberately uses only the crudest and most commonplace materials, permitting anybody who's so inclined to perform it. Einstein's 1915 theory of General Relativity explains gravitation
Difficulty: High school
In a famous demonstration, Galileo supposedly dropped a heavy weight and a light weight from the top of the Leaning Tower of Pisa to show that both weights fall at the same acceleration. Actually, this rule is true only if there is no air resistance. This demonstration lets you repeat Galileo's experiment in a vacuum.
Difficulty: Elementary school
The purpose of the following experiment is to demonstrate that energy from the sun can be collected and stored in many ways. In particular, it demonstrates the difference in the rate of absorption between black and white colors.
Difficulty: Elementary school
One of the most dramatic experiments to perform is the demonstration of the blind spot. The blind spot is the area on the retina without receptors that respond to light. Therefore an image that falls on this region will NOT be seen. It is in this region that the optic nerve exits the eye on its way to the brain. To find your blind spot, look at the image below or draw it on a piece of paper:
Difficulty: Elementary school
This is a great demonstration of like poles repelling each other. We have a platform which floats above a pair of magnetic tracks, and can be gently pushed to one end or the other. This is similar in concept to the MAGLEV trains which are being worked on in Germany, Japan and France
Difficulty: Elementary school
This is an activity which uses frogs or toads to demonstrate scientific method, by measuring the respiration rate, as well as the other external features of the live specimen. The kids enjoy working with the Arizona Toads.
Difficulty: Middle school
Demonstrate that seasons exist because of the tilt of the earth and its impact on the intensity of the sunlight at a given location.
Difficulty: Elementary school
To demonstrate what happens in an oil spill, fill a glass bottle two-thirds full of water. Add blue food coloring to make the "ocean."
Difficulty: Elementary school
Perform various experiments to demonstrate the properties of yeast.
Difficulty: Elementary school
The activity we will be doing today will simulate the spread of an infectious disease. A simulation is a simplified demonstration of how an infectious disease can spread through a population. Our simulation will show how one person who is infected with a disease can infect other people, who in turn infect others.
Difficulty: Middle school
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