Extinction events have happen throughout geologic history, but only five mass extinctions occurred over the last 4.5 billion years. Scholars view fossils from a layer of sediment during an extinction event and observe patterns to draw...

For this editing worksheet, student read a 4-sentence paragraph while looking for capitalization, punctuation, spelling, and grammatical errors.

Waterton-Glacier International Peace Park includes whitebark pines that are over 1,200 years old, meaning they have been there since before medieval times. The second lesson of five details how to read tree rings for climate change and...

This tutorial from Bill Nye uses ice, salt, water, and food coloring to explain how ocean currents are caused by the flow of heat and salt.

Try this at-home science experiment to study ocean currents in the safety of your own home.

In this activity, you will brainstorm a problem affecting the world, envision how you think this problem will affect the world in 100 years, and propose a solution. The Great Pacific Garbage Patch is used as an example of a current world...