Saltwater

A marine ecosystem is also called a

• Saltwater ecosystem

• Freshwater ecosystem

• Land ecosystem

• There is no other name for a marine ecosystem

Check all of the boxes that are organisms

• Fish

• Crabs

• Coral reefs

• Algae

Tags

NGSS.MS-LS1-1

True or False: saltwater ecosystems are the smallest ecosystems on Earth

• True

• False

Approximately what percentage of Earth's water is SALT water?

• 97 %

• 71%

• 30%

• 3%

Tags

NGSS.MS-ESS2-4

What source of water covers most of the Earth's surface?

• Lakes

• Rivers

• Streams

• Oceans

Tags

NGSS.MS-ESS2-4

What is this called?

• Food Web

• Food Chain

• Abiotic Factors

Tags

NGSS.MS-LS2-3

Which biome is pictured below?

• freshwater

• wetland

• coral reef

• ocean

In which part of the ocean do the greatest number of organisms live?

• in the deep zone to escape predators

• near the shore to burrow

• close to the surface to be near the largest food source

• in the open ocean to regulate their bodies in cooler temperatures

Tags

NGSS.MS-LS2-2

What is the main component of saltwater?

• Sodium chloride

• Calcium carbonate

• Magnesium sulfate

• Potassium nitrate

Which of the following is a major effect of saltwater on metal structures?

• Corrosion

• Expansion

• Magnetization

• Insulation