Amplify Matter and Energy in Ecosystems

What is the source of all the energy in an ecosystem?

• air

• grass

• sun

• water

Tags

NGSS.MS-LS1-6

In a food chain, When a rabbit eats hay, the hay is the rabbits source of _____.

• energy

• water

• sunlight

• carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In a food web, the ORIGINAL source of energy comes from the ______.

• grass

• animals

• sun

• water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is an ecologist?

• A community of organisms together with its environment

• a diagram that shows what eats what in an ecosystem

• something scientists make to answer questions

• a scientist who studies ecosystems

The amount of matter in an ecosystem is always ​ (a)   . It just changes forms and is recycled.

• constant

• decreasing

• increasing

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In order for matter to recycle and return in the food chain shown here, what must be present at level A?

• Tertiary consumers

• Decomposers

• Producers

• Secondary consumers

Tags

NGSS.MS-LS2-3

Giant pandas eat bamboo plants in the mountains of China. The number of energy storage molecules 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 energy storage molecules.

• has increased.

• has decreased.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Match the following

• anything that has mass and takes up space.

• law of conservation of mass

• a tool that can be used to trace the flow of energy through an ecosystem.

• energy pyramid

• the ability to do work and enables organisms to use matter in life processes.

• matter

• energy cannot be created or destroyed

• law of conservation of energy

• mass cannot be created or destroyed

• energy

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-5

NGSS.MS-PS3-5

WHat is an ecosystem?

• A scientist who studies ecosystems

• A community of organisms together with its environment

• the ability to make things move or change

• a living thing, such a a plant or animal

What is a food web?

• A scientist who studies ecosystems

• a diagram that shows what eats what in an ecosystem

• Something scientists make to answer questions about the real world

• To affect one another

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3