What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!

Learn about fish, amphibians, birds, mammals, and reptiles with this colorful life science worksheet for first and second graders!

Practice classifying different animals in this engaging life science worksheet, created for second and third graders!

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Is air a natural resource? You bet! Air as a resource carries oxygen, which we need. Read and write about ways air quality can be affected.

Can melted wax turn back into solid wax? Can scrambled eggs turn back into raw eggs? Learn the answers to these questions and more with this second-grade worksheet about reversible and irreversible changes!

Learn about the similarities and differences between objects in this colorful science worksheet!

Learn to read a standard thermometer in both Fahrenheit and Celsius in this informative second- and third-grade worksheet! 

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Design a helmet from household objects in this engaging first- and second-grade activity!