Solar System: Rotating and Revolving Teaching Special Thinkers. I would use this to teach the difference between the planets rotating and revolving. After this, I could work my way into the stars and different constellations.
3rd Grade Interactive Notebook: ALL Subjects, FULL Year
Interactive notebooks are a way to break free from worksheet overload. These pages are based on common core standards and cover reading, ELA, math, science and social studies for third grade. Interactive pages are fun and are an excellent way to cement your students' understanding.
States of Matter in a Baggie. I would use this activity to teach my students the science of the states of matter. With this hands on activity they will be able to have a visual representation of a difficult concept.