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Benchmark Media

Benchmark Media

Black and white closeup of a spiral notebook with equations. Caption. But that fraction doesn't look too good.
24 minutes 37 seconds
Grade Level: 9 - 12
Man sitting on boxes in a camel drawn cart in a South Asian town. Caption. Drawing carts through traffic.
23 minutes 55 seconds
Grade Level: 8 - 12
Boat floating on the water. Caption: Light waves and water waves are both transverse.
14 minutes 13 seconds
Grade Level: 11 - 12
Man in a blacksmith's shop wearing gloves places hot metal on an anvil. Caption. Small ironworks and village blacksmiths gave way.
17 minutes 20 seconds
Grade Level: 6 - 11
Wide shot of a European city skyline during the daytime. Lower story buildings are in foreground.Caption. The land in and around major city centers.
21 minutes 38 seconds
Grade Level: 6 - 12