The Case of the Trembling Table
It's the day of the school science fair and Ali is hoping to win with her volcano experiment. But as she is setting up, somebody bumps into the table. The ingredients she needs to make her volcano erupt have spilled all over. Who is to blame? Create a vibration-detecting seismometer to find out.

Saving Sea Otters
Scientists are keeping a close watch on sea otters off the coast of California. These furry ocean residents help to keep populations of other sea life healthy. But disease and other hazards are threatening the otters. Discover what scientists are doing to help.

Space Diving
Could you rocket into space and then skydive back to Earth? Scientists are trying to create a suit that could protect a person on an extreme dive through the atmosphere. They hope the suit could provide an exit for astronauts in an emergencyÑor be an extreme sport.