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Learn how wind turbines work in this engaging video by the National Renewable energy Laboratory (NREL). This video is part of an eight-part series teaching about the basics of renewable energy.
Science
4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade, 9th - 12th Grade
The Hubble Telescope gives us a unique view of the universe. Learn the history of this famous telescope and what it has helped us discover.
Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade
https://youtu.be/lTbNWcxedYMTree identification is a popular hobby and one of the first steps in better understanding our forests. Part 2 of [...]
4th Grade, 5th Grade, 6th Grade, 7th Grade, 8th Grade
Yup, it's true! Trees employ both photosynthesis AND respiration, although some people associate respiration only with animals.