In this lesson, young scholars make predictions about falling objects of different sizes and masses to learn about gravity and air resistance. Includes audio vocabulary list and extension activities.

This lesson provides activities to demonstrate how "A pebble calculator works in a way similar to an abacus," which will allow learners to increase their understanding of how computers work. The lesson also provides discussion prompts...

Introduce your students to South America with this physical map activity. The resource contains a detailed lesson plan to help students learn about the geography, people, and environment of South America.

This video segment adapted from NOVA chronicles the discoveries that led to a radical new theory in which living organisms, not just geological processes, play an active role in cave formation. [5:42]

This article gives a complete biography of Louis Agassiz. Learn about his discoveries on glacier activity and extinct fishes changed enriched our knowledge base.