In this chemical bonds learning exercise, students review the different types of bonds, Lewis dot structures, ions, and molecule shapes. This learning exercise has 10 matching, 17 multiple choice, and 3 drawing questions.

In this atoms learning exercise, students review the parts of an atom, Bohr diagram, atomic number, mass number, and covalent bonds. This learning exercise has 5 drawings and 26 fill in the blank questions.

Eighth graders draw the structure of an atom. They construct atomic models, list parts/locations of an atom, organize parts of the periodic table and write a descriptive report about an element.

In these creative hands-on activities, students construct several different molecular models that represent substances that play an essential role in our nutritional needs. Using gum drops and toothpicks, students design the models....