Third-grade science units typically include life science, earth science and physical science. Common Core third grade science units align with the same divisions of science while presenting opportunities to read, discuss and write about the lessons.
Teachers present life science lessons to introduce the life cycles of plants and animals, including insights into food chains. Students explore the existence and the importance of the small life forms, such as algae blooms and insects.
Earth science units acquaint students with the Earth and beyond, ranging from Earth's minerals and fuels to the structure of the solar system. Physical science lessons show students how to see and measure matter as they investigate the principles of solids, liquids and gases.