The sound waves of thunder are made when lightning very quickly heats the air surrounding it, expanding faster than the speed of sound. Learners explore waves through their own movement of string or set waves to constantly oscillate....

Surf's up! What causes the constant motion of Earth's oceans? Scholars discover the origins and types of waves in part nine of a 13-installment series. The resource illustrates wave behavior, their destructive power, and current research...

Ocean lovers hang ten as they watch this film about waves and currents. What causes waves? What is a current? Learn this and more from Sam as he explains why RJ was struggling to surf the gnarly waves. Have your class watch this at home...

Three main factors determine the wave height experienced in the ocean. Scholars use a virtual simulator to alter wind speed, fetch, and duration. Each combination creates a unique wave measured in significant height.

Breakwaters offer marinas and beaches protection from large ocean waves, but how do they work? Scholars observe wave patterns and wave amplitude during the simulation. They control the number of openings, width of openings, distance...

Make connections between ocean organisms. Individuals explore three different ecosystems in the ocean. With an online interactive, they learn how different organisms depend upon each other. Learners first answer questions to connect...

Can Earth's oceans produce a steady supply of clean energy? Scholars explore the uses of tidal and thermal energy in the 11th installment of a 13-part series about ocean-based alternative energy sources. Learners examine the...

Continental drift happens over millions of years, but new perspective shows much faster changes. An informative resource offers a short term perspective using a series of satellite images. Viewers observe major changes to a coastline in...

In this online interactive science learning exercise, middle schoolers respond to 7 multiple choice questions regarding icebergs. Students may submit their answers to evaluated.

In this reading comprehension worksheet, students read a selection, then complete 7 multiple choice questions. Students may click on an answer button for immediate feedback. Worksheet is labeled ESL, but is not exclusive.