The first golf balls were made of wood and would only last for a few games. Modern golf balls last a lot longer but they don't float. The presentation provides the directions for a lab to determine the minimum amount of salt needed to...

What do we do when a dive is too dangerous for humans to accomplish? Send in the robots! Middle school scientists get acquainted with several different models of submersible robots in the second lesson of six from NOAA. Lab groups then...

Students experiment with density of ice, and examine how density affects how icebergs float in water.

Sixth graders answer questions about "From a Railway Carriage." They discuss different poetical forms. They work together to write a poem about travel.