Interactive
Curated OER

Confusing Words: Rise and Raise

For Students 4th - 6th
In this confusing words:  rise and raise worksheet, students read the explanations and examples for correct usage of these two words, then interactively complete 10 sentences for practice with immediate online feedback.
Interactive
NASA

Nasa: Weather

For Students 9th - 10th
Though we live on the surface of the Earth, we actually live at the bottom of an ocean of air. Dynamic layers of air interact with the Earth's surface and the Sun's energy to produce the phenomenon of weather. The atmosphere is...