Students study how hot air balloons were created and the different types there are.  In this density and lift instructional activity students build their own hot air balloon.

The history of aerodynamics is rich with experimentation and international collaboration. Author Joyce Bryant relays this dynamic past and provides math word problems using the formula of lift, the force that makes airplanes fly. She...

Use this site to learn more about early inventors and inventions from the 18th century. This web page offers text and images on various inventors and their inventions. You can also access information about inventors and inventions from...