This video addresses the subject of endangered languages.
Edheads is an interactive site about simple and compound machines. Edheads provides a glossary of simple machines and then challenges you to identify simple machines in everyday objects.
Students can review the simple machines glossary to learn how to identify simple machines and discern the difference between a simple and compound machine. This site presents information with bright colors and animation that makes it attractive for curious young learners. It features printable student hand outs and teacher guidelines for using this resource. Students can try to find these types of machines in the House and Tool Shed activities. Use the teacher guideline resource to help you organize and present this topic with students.
Tools by Science NetLinks
Step into the fascinating world of materials science and mechanical engineering with this series of videos by Dr. Ainissa Ramirez.
This interactive is based on the classic story of evolution by natural selection—the story of the peppered moths in England during the Industrial Revolution.