Interactive
Curated OER

Comparing Covalent and Ionic Substances

For Students 9th - 12th
In this covalent and ionic substances worksheet, students 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.
Lesson Plan
Curated OER

Circles to Spheres

For Teachers K - 3rd
Students investigate circles and spheres. For this space shapes lesson, students compare and contrast two-dimensional and three-dimensional shapes. Students investigate the relationship between plane and space shapes.