Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

What is the purpose of a hard shell or a long neck? Discover different adaptations with this matching worksheet for second and third graders!

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!