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Grade 7 Science Starter Lesson: Energy Flow Through Ecosystems
By Formative Staff
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Last updated over 1 year ago
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Instructions
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In this lesson, you will explore the flow of energy among living and nonliving parts of an ecosystem.
Essential Question:
How does energy flow through an ecosystem?
In this lesson, you will explore the flow of energy among living and nonliving parts of an ecosystem.
Essential Question:
How does energy flow through an ecosystem?
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Question 1
1.
Define the term 'trophic level' in the context of energy flow through ecosystems.
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Question 2
2.
Energy is lost as it passes through each trophic level in an ecosystem.
True
False
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Question 3
3.
Drag the tropic level to the correct part of the energy pyramid to show how the energy flows in an ecosystem.
Other Answer Choices:
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Decomposers
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Primary producers
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Primary consumers
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Tertiary consumers
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Secondary consumers
Question 4
4.
Which organism is always the first in the energy flow through an ecosystem?
Producers
Primary Consumers
Secondary Consumers
Question 5
5.
Drag each organism into the correct box that matches its trophic level.
moss
phytoplankton
Question 6
6.
Which of the following best describes the role of decomposers in an ecosystem?
They break down dead organisms and recycle nutrients back into the environment
They produce their own food through photosynthesis
They consume other organisms for energy
They are the top predators in the food chain
Question 7
7.
Which are true about trophic levels and the food chain? Select
three
correct answers.
Having too many trophic levels is inefficient because so much energy is lost as heat.
Question 8
8.
Drag each organism category into the correct box to match its energy-related description.
consume both plants and animals for energy
convert sunlight into energy through photosynthesis
recycle energy by breaking down nonliving plant and animal remains
obtain energy by consuming plants
Producers
Decomposers
Teritary Consumers
rabbit
owl
butterfly
deer
hawk
Primary producers
Primary consumers
Secondary
consumers
Tertiary consumers
Due to the recycling of decomposers, all the lost energy can be reused by producers.
Plants are able to use 90% of the sunlight that reaches the surface of the earth.
Every consumer relies on some producer for energy.
Humans rely on producers' ability to convert solar energy for their survival.
Herbivores
Omnivores
Decomposers
