Arthropods :: :: Home Available Units Invertebrates :: Young readers will discover: •  the similarities and differences among insects,    arachnids, myriapods, and crustaceans •  the functions and features of an exoskeleton •  molting, metamorphosis, and other interesting    body facts •  he crucial function of arthropods in food chains    and webs LEARNING OBJECTIVES: Arthropods outnumber all other animal species - combined!  Kids will be fascinated by the variety of shapes, sizes, colors, and behaviors found among these invertebrates. Labeled diagrams and startling close-up photography make this a fun unit to study. Arthropods Arthropods Core Text Arthropods  e-Book Curriculum - FREE! Arthropods Core Text: - $6.95 Arthropods Curriculum Core text is sold separately. “What is an Arthropod?”  by Bobbie Kalman Free Sample Unit! Click here to download this entire unit for Free! Invertebrates Arthropods Crayfish Earthworms Octopus This book is also available in the Invertebrates Core Text Bundle. View Cart