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Use the energy of the Sun to cook food…
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Can you be a successful fisherman while preserving the common fishing grounds for everyone?
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Our lemon batteries used zinc and copper as electrodes. You could try other metals.
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For this project you will design a building that uses energy as efficiently as possible. Look at traditional buildings in your area for ideas on how to minimize energy use.
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People expend a lot of energy walking, running, riding bicycles and lifting things. What if all this energy could be harnessed to do work that is now being done by using conventional sources of energy?
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For this challenge, you will design an environment that will keep an ice cube from melting for as long as possible.
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Mohammed Bah Abba is from northern Nigeria. He won the 2001 Rolex Awards for Enterprise for his invention...
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Many designs for solar water heaters circulate water through a series of coiled or looped tubes in a collector box with a transparent cover facing the Sun...
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In this activity, you will explore how to maximize the performance of a solar cell for the part of the world where you live...