Visit the South Carolina Department of Education for Science standards.
Take a quick look at all Science series on Knowitall.org
Interactive
If you have ever put your hand outside the window of a moving car, you have experienced drag. Watch the simulation.
Interactive
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
What do thunderclouds and static charge have in common?
Interactive
If you want to understand electricity, you first need to know a little about matter, atoms and electrons.
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.
Video
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
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
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...
Video
Part 3 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...