Geologic Age

There are more than 600,000 asteroids in our solar system. Pupils analyze images of two asteroids in order to determine if they are the same age. They count craters for each asteroid and compare numbers. 

In this ages of rock worksheet, students will review the processes and techniques of determine the age of rocks. Then students will use a rock layer diagram to determine what rock materials are older or younger. This worksheet has 16...

Middle schoolers make observations through 3-D visualizations. They explore scientific and geologic processes through the use of 3-D pictures.

Modeling dough and paper cutouts in science class? Learn about how relative age dating concepts, like the Law of Superposition and cross-cutting relationships, can be used to describe the formation of sedimentary layers.

Give your earth scientists or evolutionary biologists a very brief overview of the history of planet Earth using this presentation as a support. A slide explores the big bang theory and one describes the formation of our solar system. A...

How do scientists know the history of Earth before humans—or any mammals—existed? An epic "Eons" series video explains the larger history of geologic time. It highlights the eons, eras, periods, epochs, and ages scientists use to divide...

Cartoon children compare the earth's age to timescales that we understand:a calendar year, the thickness of a book, the human lifespan. This smart film clip is definitely worth adding to your geologic timescale lesson! If you subscribe...

Students investigae using radioactive decay to determine geologic age.

Hear experts provide evidence of Ice Age and glacial movement based on today's geological features. Various measurement tools are used to see what chemicals are found in ice and the atmosphere in order to determine the climate of the...

Spring breakers first gathered in Wakulla Springs, Florida, over 10,000 years ago! Geologists and archaeologists work together to uncover hidden artifacts from this time period. Even 10,000 years ago, people went to Florida to warm...