The Earth is very much alive, even its rocks shift and change. Practice geology vocabulary with this challenging word search.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

Learn more about molecules and how they comprise the air all around us in this intro-to-earth-science worksheet.

Use clues to fill in the boxes in this crossword puzzle, and learn more about freshwater fish along the way.

This worksheet teaches your student about physical change vs chemical change, matter, mass, and property. An exciting experiment reinforces the concepts.

Learn about a famous woman of science, Rosalind Franklin, and how she contributed to the discovery of DNA's double-helix structure.

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!