Energy Pyramids

​Energy Pyramids

Ecosystem Interactions Unit

Multiple Choice

This diagram is an example of what?

• Energy Pyramid

• Ecosystem
• Food Web
• Food Chain

Multiple Choice

This diagram is an example of what?

• Ecosystem
• Food chain
• Food web
• Energy Pyramid

Multiple Choice

Where does the energy in the food web originate from?

• Apex Preadators

• The sun
• Warm Air

• Producers

Light energy is transferred to chemical energy through photosynthesis. Light, water and carbon dioxide are used to make glucose (sugar).

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​Energy Flow

Energy pyramids are a diagram that shows how energy is transferred through an ecosystem.

It is organized by trophic level!

90% of energy is lost at each level to heat, waste, etc.

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​Energy Pyramids

Labelling

Label the energy pyramid with the trophic levels.

Drag labels to their correct position on the image

Secondary Consumer

Primary Consumer

Producer

Tertiary Consumer

Labelling

Label the energy pyramid with the percentage of energy for each trophic level.

Drag labels to their correct position on the image

10% (1,000 calories)

100% (10,000 calories)

1% (100 calories)

0.1% (10 calories)

1. On the blank triangle, write in the species from your food web that fit in each category.

2. Suppose your producers have 45,000 calories. Calculate how many calories each level has on the top triangle.

3. Decorate and color each trophic level on the pyramid a different background color. Cut, and glue it together.

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​Show What You Know