How do you get a theorem named after you? Euler knows what it takes! The third lesson of five asks pupils to use an interactive activity to compare the faces, vertices, and edges of seven different three-dimensional solids. They use...

For this covalent and ionic substances worksheet, high schoolers use the internet to find information about the characteristics of covalent and ionic substance and explain what causes the differences in these types of substances.

Name various 3D shapes in this online game.