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Decreasing ocean temperature causes the density of the water to ______.

• decrease

• increase

• stay the same

• fluctuate

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-4

Nutrients are brought to the surface for phytoplankton to use at _______.

• gyres

• eddies

• upwellings

• the equator

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel

• gravity and the Coriolis Effect

• temperature and salinity

• wind and climate

• temperature and the Coriolis Effect

Tags

NGSS.MS-ESS2-6

Carbon dioxide and seawater combine to form

• calcium carbonate
• carbon monoxide
• carbonic acid 

Tags

NGSS.MS-PS1-5

Light does not reach the bottom of the ocean, yet certain species live there. Which best explains how species on the bottom of the ocean get energy to live?

• Algae and bacteria produce energy through photosynthesis.
• Hydrothermal vents produce energy through chemical reactions.
• Dead plants and animals produce energy through decomposition.
• Light comes from the core of the earth.

Deep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?

• chemosynthesis
• electrical charge
• hydropower
• thermal heat

Animal members of the plankton community.

• Phytoplankton
• Meroplankton
• Holoplankton
• Zooplankton

Scientists use ______ to determine the oceans depth.

• Submarine
• Sonar
• Helicopter
• Light

The ocean is salty mainly due to the weathering & erosion that takes place on igneous rocks found in Earth’s crust and on the mountains.  It is also salty due to the dead ocean animals whose bodies sink to the ocean floor.

• True
• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Another reason algae /phytoplankton are important is because these serve as _____________ to most food chains in the ocean

• salinity protection

• primary food source

• barriers from strong currents/weather systems

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

NGSS.MS-LS2-4