This set allows students to see, firsthand, the differences between an extremely light wood and a very heavy wood — in this case balsa and lignum vita...
Set of 5 metal cubes of equal (20 g) mass. Cubes are copper, aluminum, zinc, iron and brass. Demonstrate inverse relationship between density and volu...
Great for teaching that density depends of both mass and volume, students can't seem to put these spheres down! Two steel spheres are great for teachi...
Teach your students about gear ratios and different gear configurations and how these concepts are used to change the amount of applied force to an ob...