Assessment: Matter and Energy in Ecosystems

Matter that makes up the nonliving parts of an ecosystem, such as air, water, and rocks

• Abiotic Matter

• Biotic Matter

• Ecosystem

• Habitat

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

Matter that makes up the living and dead organisms in a ecosystem

• Habitat

• Abiotic Matter

• Ecosystem

• Biotic Matter

Tags

NGSS.MS-LS1-1

NGSS.MS-LS2-3

An organism that needs to eat in order to get energy storage molecules (such as starch and fat)

• Producer

• Consumer

• Plant

• Algae

An organism that gets energy storage molecules (such as glucose) by breaking down dead matter

• Decomposer

• Consumer

• Producer

• Plants

An organism that can make its own energy storage molecules (such as glucose)

• Abiotic Matter

• Consumer

• Decomposer

• Producer

Tags

NGSS.MS-LS1-6

Which of the following is an example of a biotic factor in an ecosystem?

• sunlight
• stream
• rock
• tree

Tags

NGSS.MS-LS1-4

Decomposers are important to ecosystems because they

• return vital nutrients to the ecosystem
• capture energy from the Sun
• are producers
• can be omnivores

Tags

NGSS.MS-LS2-3

Giant pandas live wild in the mountains in China, where they eat bamboo from its forests. The number of molecules that store energy has decreased in both the bamboo and the pandas. What has happened to the amount of carbon in the bamboo and the pandas?

The amount of carbon in the bamboo and pandas . . .

• has not changed.

• is not related to the number of molecules that store energy.

• has increased.

• has decreased.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Hippos spend most of their time in rivers, but they come out of the water to eat grass. It is dark out, and this hippo is not eating.

What is happening to the carbon in the air around the hippos and the grass nearby?

• Carbon is not moving into the air; it is only moving out of the air.

• With this information, there is no way to know for sure.

• Carbon is moving into the air and out of the air, at the same time.

• Carbon is only moving into the air; it is not moving out of the air.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Parrotfish live in the ocean and eat plantlike organisms called algae. Sunlight is shining on the fish and the algae. Is carbon moving into the living things, moving out of the living things, or both?

• Carbon is moving into and out of the living things, at the same time.

• Carbon is only moving into the living things; it is not moving out of them.

• Carbon is only moving out of the living things; it is not moving into them.

• There is no way to know for sure, with this information.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3