Ocean exploration

What was a significant motivator for the Age of Exploration?

• Trade and accumulation of wealth

• Lack of resources
• Desire for isolation
• Fear of the unknown

A sounding will reveal the __________ of a body of water.

• depth
• width
• temperature
• color

Water clarity can be measured at night using

• Thermometer
• a photocell

• Dissolved oxygen meter
• Secchi disk

Which sampling device could best provide a history of sediment deposition at a given location in the ocean?

• Underwater camera
• Sediment corer
• Gravity corer
• Seismic profiler

Tags

NGSS.HS-ESS2-5

The greatest challenge to deep-sea diving is

• Keeping warm

• Sharks
• Lack of oxygen
• Cold temperatures

A greater amount of life is found in the earth's oceans than is found on land.

• True

• False

Modern underwater habitats are simple in design and easy to use.

• True

• False

Oceanographers often face bad ________________ as they work on the oceans.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Smal pelagic organisms can be sampled from a moving ship using a(n)_____________ _____

The use of lead lines to determine water depth was eventually replaced by_______ technology.