This science experiment is an easy activity for students to practice the scientific skills of predicting and classifying while learning about buoyancy. Students will make predictions, learn new vocabulary, and classify objects based on whether they float or sink. I've left the objects blank so that you can use anything that you have on hand. At the end of the activity students predict whether a peeled or unpeeled orange will float or sink. I hope your students enjoy practicing the skills needed to be a scientist with this quick and easy experiment!