An eye-opening activity uses documents and photos to help academics understand the factors that pushed or pulled immigrants to America. Young historians group photos based on a push or pull factor, then complete a worksheet. Scholars...

What led Americans to head west in the 1800s? Using an interactive map and journals from those who traveled, pupils explore the stories of those who migrated. In addition, they see how the numbers fluctuated in response to the push-pull...

If America is a nation of immigrants, where are they from and why did they come? Demographic data and interactive maps help pupils consider answers to these questions by examining the statistics of foreign-born Americans. Features allow...

In this earthquake exploration worksheet, students complete 2 prior knowledge questions, then use "Levers Gizmo" to conduct several activities, completing short answer questions when finished.

An interactive tool where students can explore how a spring behaves, and how changing the elasticity, mass, push/pull force, and friction affect its motion or period. As the spring moves, its motion is shown on a distance-time graph.