Page 59 - Science Course 3 (Book 1)
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Mo2-L2b: How Does Matter Move in an Ecosystem?
Cycling Materials
Mo2-L2b How Does Matter Move in an The law of conservation of matter states that matter
Ecosystem?
cannot be created or destroyed, but it can change
KEY CONCEPTS: form.
1. How does matter move through an ecosystem?
Matter is recycled through ecosystems, changing
form along the way.
Vocabulary A-Z
Let us learn some vocabulary
Consumer
Energy Pyramid
a model that shows the amount of energy available Producer Decomposer
in each link of a food chain.
Matter
Non-living
Energy Transfer Matter
Energy loss (heat)
Three of the most important pathways of
matter moving through an ecosystem are
described by the nitrogen cycle, the water
cycle, and the oxygen-carbon dioxide cycle.
Cycle
Flow
Let’s Begin
The Flow of Energy Ecological Cycles
An energy pyramid is a model that shows the
amount of energy available in each link of a
food chain.
Biosphere
The loss of energy at each level of an energy
pyramid helps explain why there are always Phosp-
more producers than carnivores in a Carbon horus Nitrogen Water Oxygen
community. Cycle Cycle Cycle Cycle
Cycle
Heat in the Environment
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