7 Science Chapter 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| bark | rough outer covering of a tree & location of a tree's phloem
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| block cutting | removing all the trees in areas 100 acres or less
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| bottomland hardwood forest | American forest region extends along the Mississippi River
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| bristlecone pines | oldest living organisms on earth
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| canopy | forest's thick top layer of interlaced leaves
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| carbon source | the technical term for a system of object that produces carbon dioxide
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| coast redwood | tallest tree species
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| crown | top leafy portion of a fully grown tree
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| crown fire | most destructive type of forest fire
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| cuticle | waxy protective layer on a leaf
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| deciduous | a tree that loses its leaves in the fall and stays bare all winter
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| dioecious | a tree that produces male and female reproductive parts
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| gall | abnormal tree growth caused by insects
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| hardwood | another name for broadleaf trees
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| heartwood | the hard, dead, clogged wood at the center of a tree
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| leaf scar | all that remains on a branch after a leaf falls off
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| lenticel | small pore that allows air to enter a stem
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| node | place on a stem that leaves grow out of
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| old-growth forest | forest that has not been influenced by man or used for timber
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| Pinchot | first head of the U.S. Forest Service
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| pith | central core of a young woody stem
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| prescribed burning | foresters deliberately setting fire to a forest under controlled conditions
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| sapling | a young tree
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| sapwood | a tree's living, functioning wood
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| secondary forest | type of forest that grows up after a virgin forest is cut
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| secondary growth | a tree's increase in diameter
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| seed-tree method | removing all but a few selected trees from a certain area
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| silviculture | branch of forestry that deals with the care and culture of forest trees
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| spreading branching | tree with several main branches close to the ground
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| stands | groups of tall plants or trees
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| sun leaves | thick, small leaves at the tops of trees
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| supertrees | crossbred trees that are more insect resistant and produce better wood than normal trees
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| sustained yield | intensive forest management system that is intended to cause forests to grow more high-quality trees that mature more quickly than normal
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| taproots or spreading roots | type of tree roots
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| terminal bud | location from which a tree grows in length
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| tree | a perennial plant which is at least 20 feet tall and has a single main stem
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| tree line | northern and southern limit at which trees grow
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| tree roots | part of tree which functions include absorbing water & minerals, making food for the tree, and storing food
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| vascular cambium | layer of growth cells just below the bark of a tree
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| wood | main tissue of a trunk
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| xanthophyll | leaf pigment that gives leaves a yellow color
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| xylem | tissue that wood is composed of
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| abscission layer | layer of cells that forms at the bse of a petiole to sever a leaf from a branch
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| annual growth ring | one layer of springwood and one layer of summerwood
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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