Exploring Energy Flow in Ecosystems

What is the ultimate source of energy for most ecosystems?

• The moon

• The sun

• Volcanoes

• Wind

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NGSS.MS-ESS2-4

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What happens as you move from one organism to another in a food chain?

• You move up trophic levels

• Energy is created

• You move down trophic levels

• Energy is destroyed

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following are examples of producers?

• Plants and algae

• Herbivores

• Decomposers

• Carnivores

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NGSS.MS-LS2-2

NGSS.MS-LS2-3

What percentage of energy is transferred from one trophic level to the next?

• 10%

• 1%

• 50%

• 100%

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NGSS.MS-LS2-3

If a grasshopper eats plants with 1000 Joules of energy, how much energy does it receive?

• 10 Joules

• 1 Joule

• 100 Joules

• 1000 Joules

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

According to the first law of thermodynamics, what can happen to energy in an isolated system?

• It can be created

• It can disappear

• It can be destroyed

• It can be converted from one form to another

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NGSS.MS-PS3-5

What does the second law of thermodynamics state about energy conversion?

• It destroys energy

• It creates energy

• It is never completely efficient

• It is always 100% efficient

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NGSS.HS-PS3-4