Elements and the Periodic Table
Eighth graders work in groups of 3-4 for this activity. They are given a sealed shoeboxes, which contains a few small items. By performing a variety of tests on the boxes, the students form hypotheses, and use deductive reasoning, on the size, shape, and identity of the objects in the box. This activitiy introduces students t the concept of atoms, and how they may have been discovered, despite their small size.