Take It to Your Seat Science Centers, Grades 3-4 has everything you need for 14 centers to explore science concepts and practice literacy skills. These centers, stored in folders or plastic envelopes, are ideal for small-group and individual practice. The concepts covered include: science analogies outer space phases of the moon vertebrate or invertebrate? taxonomy plant parts life cycles animal adaptations simple machines human body systems Earth's layers energy transformation states of matter food webs This resource contains teacher support pages, reproducible student pages, and an answer key. This is a reproducible resource (photocopying of lessons is permitted) for single classroom or individual home use only. About Evan-Moor A leader in PreK-8 educational publishing, Evan-Moor has been a trusted partner of teachers and parents for over 40 years. Our mission is helping children learn, and we do this by creating resources that motivate children to learn important skills and concepts across the curriculum while also inspiring a love of learning.