Learn about colors of light by exploring how prisms work. Discover the different colors of the spectrum and how the visible light is what we see.

An introduction to the Sun including its size and distance from the Earth, sunspots, flares and coronal mass ejections.

This video clip shows how Newton's second law relates to thrust on airplanes. Watch as an instructor at NASA's National Test Pilot School shows how thrust can change through an engines propellers and engine. [10:40]

Visible light waves are the only electromagnetic waves we can see. We see these waves as the colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength. When all the waves are seen together, they make white light. [4:50]

Learn how krill fight for survival as the sea ice melts and the population decreases. Discover how krill relate to our food chain and learn about their development.

This site from NASA provides an excellent tutorial on vectors and their use in physics to describe the motion of objects. Vector addition and resolution are illustrated.

Learn more about black holes and neutron stars. View the MPEG video of a virtual trip into a black hole.

This video shows how the center of gravity on an airplane is determined, where it is located, and why it's important for maintaining balance. Watch as computers on the aircraft redistribute weight of fuel on an airplane to help maintain balance. [14:10]

Watch this video and learn what microgravity is and how space shuttles experience continuous fall. Learn how to recreate microgravity here on Earth. [2:20]

This lesson teaches students about the characteristics of planets, comets, asteroids, and trans-Neptunian objects. After learning about these different things, students then are to debate about a new object that is found in space.

Learn about the characteristics of and different species of phytoplankton. Topics highlighted in this article include photosynthesis, global change, and the marine food chain.