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Trees
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What is the source of energy plants use to perform photosynthesis?
sun light
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What is an annual ring on a tree?
a new layer of wood that tells the age of the tree
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What are conifers?
trees that bear cones
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Three main groups of trees?
needleleaf, broadleaf, and palms
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What does deciduous mean?
looses leaves in the fall
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What gas to plants release into the air that is needed by animals?
oxygen
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What are stomata and what do they do?
Holes that allow gases to pass in and out of the leaves of a plant.
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What gas do plants need to help make thier own food during photosynthesis?
carbon dioxide
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Name the 3 main parts of a tree.
crown, trunk, roots
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What three things are needed by plants in order to perform photosynthsis?
sun, water, and carbon dioxide
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