The objective of this learning activity is to provide students with an introduction to the sand casting method for metals and with an understanding of how the properties of materials can be changed. Sand casting is used to "make parts that are comprised of iron, bronze, brass, and, at times, aluminum" by pouring the metal into a mold formed out of sand. This thirteen page document describes the Student Learning Objectives, Equipment and Supplies Required, and Module Procedure. Additionally, ideas for extending the module with a lab report, videos, or more activities are provided as well.
Authored by Paul Doherty, Pearl Tesler and Noel Wanner for Exploratorium, this site analyzes the physics of skateboarding in great detail. It goes into many...
This applet simulates the behavior of a simple RLC circuit with an AC voltage source. The user can change the period of the voltage source, the inductance, and...
This lesson provides an introduction to the world oil market and the United States' dependence on it. Topics include our current usage, sources, and the...
Due to the presence of dissolved gases such as carbon dioxide, rainfall is naturally acidic. The release of other gases and chemicals such as sulfur dioxide...
Soil is essential for life on Earth. It is needed for food, air, clothing and so much more. Discussion topics include the terms 'soil', 'dirt', and 'sediment',...
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