Sunday, October 21, 2007

Science Quiz on 10/29

Quiz Covers:

Define and understand:
Photosynthesis
Chlorophyll
Cellulose
What plants need: soil, water and light

Label parts of the leaf:
Margin, Leaf Base, Leaf Stem, Vein, Tip

Given a leaf, be able to tell:
Type: simple, compound, entire or lobed
Shape: round, oval, pointed, long, thin
Surface: rough, smooth, prickly, soft
Edge: line, shells, teeth, big teeth
Arrangement: opposite, alternate, whorled
Margins: toothed, smooth
Veins: palmate, pinnate
Compound Leaves: Palmate, pinnate

Label parts of the tree and state their jobs-
Leaves-"we make food"
Outer Bark-"please keep out"
Inner Bark/Phloem-"food for the tree"
Cambium-"new phloem, sapwood, cambium"
Sapwood/xylem-"gurgle, gurgle, slurp, slurp, transport water!"
Heartwood-"I support, I support"
Tap root-reach down to bring nutrients in
Lateral root-reach out to bring nutrients in
Annual Rings-tell the story and age of a tree

Label and know parts of the Lily flower:
Stamen-male parts
Anther-male part that produces pollen
Filament-supports the anther
Carpel-female parts
Ovary-female part where seeds are produced
Stigma-receives pollen
Style-attaches the stigma to the ovary
Petal-attract insects, spotted marking attract
Sepal-attract insects

How a flower reproduces:
As soon as the pollen is ripe, the anthers split open. When an insect visits the flower, some of the pollen brushes off onto it's body and will be carried off to the stigma of another flower.