Eggsperiment is a worksheet to go along with an activity. it touches on density and how particles can be too small to be seen. Have the students drop and egg in regular water and draw what they see in the first cup. Then have them put salt in the second cup of water and drop the egg in. They will again draw what they observed. Then have them answer the worksheet questions. They will discover that the water with the salt is more dense so the egg floats unlike in the regular water.