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Lakeview Academic Challenge Science GRade 5

Terms in this set (20)

hypothesis
A possible answer to a question.
cells
Basic building blocks that make up all living things.
nucleus
The "brain" or control center of the cell.
biotic factors
all living things in an ecosystem
abiotic factors
non living things in an ecosystem
What do these items have in common?
water, temperature, sun
They are abiotic factors.
Deciduous forests
Ecosystem that has trees such as oaks, elms, and maples. They are found in the eastern U. S.
producers
organisms that make their own food
decomposers
consumers that break down wastes and dead plant and animal material
This begins every food chain.
sun
Name the four limiting factors in an ecosystem.
water, food, space, shelter
weathering
a slow, destructive process that break down rocks
erosion
movement of materials away from one place
the four causes of erosion
wind, water, ice, and gravity
Name 2 destructive forces caused by earthquakes
landslides and tsunamis
continental shelf
the extension of the continental crust under the ocean
continental slope
a steep drop-off at the edge of the continental shelf
rift zone
a notch or valley between the edges of the plates at a spreading plate boundary
ocean trench
a deep valley that forms when an ocean plate moves below another plate
which tool should be used to protect your eyes during an scientific experiment?
safety goggles
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