PBS
Pbs Teachers: Building Columns
Explore different types of supports and the forces that act upon them. Investigate the best design of a column, including the role that size and dimensions play on its load capacity.
PBS
Pbs Teachers: Why Do Elephants Have Big Feet?
Explain how an organism's adaptations give it advantages in particular environments. Calculate and compare the amount of pressure exerted by the foot of an elephant and a human, and apply that knowledge to an understanding of automobile...