Interactive
Grades
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How does weight affect an airplane? Watch the simulation.
Science | Topics
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Visit the South Carolina Department of Education for Science standards.
Take a quick look at all Science series on Knowitall.org
Interactive
Grades
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Thrust is the force that propels or drives an airplane forward. This force can be produced by an engine spinning a propeller or a jet engine expelling hot gas from the back. Watch the simulation.
Interactive
Grades
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If you have ever put your hand outside the window of a moving car, you have experienced drag. Watch the simulation.
Interactive
Grades
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An upward force called lift, acts on the airplane and opposes the downward forces of gravity. The lift force allows the airplane to get off the ground and stay in the air. Watch the simulation.
Interactive
Grades
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What do thunderclouds and static charge have in common?
Interactive
Grades
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If you want to understand electricity, you first need to know a little about matter, atoms and electrons.
Interactive
Grades
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When you flip a light switch on and off, you are closing and opening a circuit. A circuit is the path that electricity follows. Play the interactive above to learn more.
Video
Grades
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- Higher Education
Episode
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Part 1 In "Climate Change: A Global Reality," moderator John King of CNN and expert panelists examine the relationship between climate change and the human activities that heighten and intensify its...
Video
Grades
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- Higher Education
Episode
2
Part 2 In "Climate Change: A Global Reality," moderator John King of CNN and expert panelists examine the relationship between climate change and the human activities that heighten and intensify its...
Video
Grades
- 6
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- Higher Education
Episode
4
Part 4 In "Climate Change: A Global Reality," moderator John King of CNN and expert panelists examine the relationship between climate change and the human activities that heighten and intensify its...