How the Earth Was Made: Deepest Place on Earth Video Questions

Just before landing, what did the divers see on the bottom of the trench?

• A bigfin reef squid

• A bottom-dwelling flatfish

• A giant Pacific octopus

• A bowhead whale

In 1874, how did the British surveyors of HMS Challenger map the ocean floor?

• Sonar

• Scuba divers

• Ropes and weights

• metallic anomaly detector

In 1951, which technique, originally developed to detect lurking submarines, showed that the Challenger "deep hole" was really a trench twice the length of California?

• SONAR

• Scuba

• Marianas Trench

• Well Dive

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NGSS.MS-PS4-2

What happened 2 hours into the Trieste's dive at a depth of 20,000 ft.?

• They lost connection to the surface

• The tank hit a rock

• The pilot passed out

• The outer window cracked

Which plate is largest and fastest moving?

• African plate

• Pacific plate

• Antarctic plate

• South American plate

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NGSS.MS-ESS2-3

The Marianas Trench devours the Pacific Plate at a rate of 3 in/yr, about as fast as...

• A fingernail grows

• A baby grows in a week

• A tadpole grows

• A human hair grows

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NGSS.MS-ESS2-3

Which soft rock was ground up in the subduction zone?

• quartzite

• gneiss

• serpentine

• slate

How can the Pacific Plate's movement be tracked today?

• SONAR

• GPS

• magnetic tracking device

• bluetooth tracking

What prevents large earthquakes at the Marianas Trench?

• the oceanic crust

• the rocky surface

• lubricating mud

• the flauna

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NGSS.MS-ESS3-2

Along with the Trieste's lights, what else lit up the abyss?

• Bioluminecent animals

• flood lights

• the moon

• their flashlights