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Gr 4 Science Ch 3

Gr 4 Science Ch 3.1-3.3 Bold Terms

photosynthesis the process by which green plants use the energy of sunlight to change water and carbon dioxide into sugars (for food)
chlorophyll the green coloring matter that green plants use to manufacture their won food
carbon dioxide a gas which green plants absorb from the air during photosynthesis
crown the leaves and branches of trees. Leaves make teh food for the entire plant. You will also find flowers or fuit at certain times of the year.
trunk the stem of a tree made of woody fiber, protected by a layer of bark
roots the part of the tree below the ground that anchors the tree and absorbs water and minerals
annual rings layers of wood showing the growth of a tree A new layer of wood grown each year; the age of the tree and the amount of rainfall of each year can be told by this.
needleleaf having very narrow leaves that are needlelike or scalelike
evergreen having green leaves all year
conifer a tree that produces seeds in cones instead of flowers
broadleaf having flat, broad leaves
deciduous shedding leaves each year, usually in the fall; means falling down
acorns the fruit of an oak tree
keys the winged fruit of certain trees (such as maples) which contains a seed or seeds
Created by: mbrennan262



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