What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

Constellations are groups of stars that form a picture, usually with a story behind it. But many constellations are also zodiac signs, like Libra, the scales.

Learn about how the Earth was formed in this science worksheet that covers the early years of the Earth.

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

Learn all about rivers--how they were formed, what they're made of, and what they do for us and the planet--in this reading and science worksheet.

Before we knew what the stars were, people would often tell stories about the pictures that the stars formed. This one is called Aquila, the eagle!

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

Help third and fourth graders become rock stars with this informative geology worksheet!

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Analyze fossils with this engaging third-grade science worksheet!