Earth's History

Practicing paleontologists map the geologic time scale, simulate the formation of sedimentary rock, and analyze fossil data. Instructions for four activities and five assessment choices are provided for the teacher. This comprehensive...

What can layers of rock teach us about the climate? Young scientists solve a mystery about who stole a cookie by applying the law of superposition. Then, they apply the same concept to solve a more difficult mystery, trying to determine...

Watch a slideshow featuring the makeup and value of fossils and take a quiz on the facts.

Dynamic music pumps up viewers as they learn about intrusive and extrusive igneous rocks. Presentation slides include a graphic depiction of magma below Earth's surface , photographs of lava exploding and flowing, and close-ups of...

How does one go about finding fossils? Find out with an informative webpage that looks at the digging process, showcases rocks and common fossils, helpful tips, and a list of archeological do's and don'ts. 

Math rocks! Cavern design teams determine the rankings of rock types based upon desirability points. The points are connected to the properties of the rocks and their usefulness in building a cavern. 

Fascinating photos of sedimentary rocks and formations supply a brief overview for your geology class. By viewing these slides, learners discover that sedimentary rocks are made of tiny bits of rock, dirt, or shell that have settled,...

Photographs of magnificent metamorphic rock formations make up the bulk of this brief slide show. Along with the upbeat background music, slow-moving slides, and informational captions of the slide show, you will also find key...

What can this rock be? Pupils pretend to be paleontologists by sketching fossils and making predictions about their types. To determine whether they can identify the type of dinosaur, class members compare their observations and...

Meet some interesting rocks. Learners discover information about the three types of rocks and different rocks that are within each group. They read imaginary interviews with six rocks as each rock tells the story of their formation and a...