Parts of an Airplane | NASA Online
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Watch the simulation to learn the parts of an airplane.Interactive
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
Thrust | NASA Online
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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.
Drag | NASA Online
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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.
Lift | NASA Online
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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.
Lightning and Static | NASA Online
Interactive
What do thunderclouds and static charge have in common?
Understanding Electricity | NASA Online
Interactive
If you want to understand electricity, you first need to know a little about matter, atoms and electrons.
Circuits | NASA Online
Interactive
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.
Climate Change: A Global Reality, Part 1
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1
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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...
Climate Change: A Global Reality, Part 2
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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...