Page 60 - Science Course 3 (Book 1)
P. 60
Mo2-L2b: How Does Matter Move in an Ecosystem?
Key Concept All the freshwater on Earth’s surface and in the
bodies of living organisms is recycled through the
How Does Matter Move in an Ecosystem? water cycle.
How does matter move through an ecosystem?
Photosynthesis and cellular respiration cycle carbon
dioxide and oxygen through the ecosystems.
Cycling Materials
The nitrogen cycle describes how nitrogen moves
from the atmosphere to the soil into the bodies of
living organisms and back to the atmosphere.
SUMMARY
How Does Matter Move in an Ecosystem?
Matter can be changed into different forms
and cycles through ecosystems. It cannot be
destroyed.
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