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Science State Review
Test Description: To help you review
Instructions: Answer all questions to get your test result.
1) In the 1800s, trains used coal to power steam engines. Which is the most accurate representation of energy transformations in the train's engine?
A
mechanical - chemical - heat
B
chemical- heat- mechanical
C
mechanical- light- electrical
D
chemical- electrical- mechanical
2) Newton's first law of motion states in part that an object in motion tends to stay in motion. Why is this law easier to observe if the object is in motion on smooth, level ice?
A
Gravity is not acting on the object.
B
Air resistance on the object is not a factor.
C
The force on the object is greater in cold temperatures.
D
The effect of friction on the object is reduced.
3) A white-colored fabric is dyed with a chemical that reflects red light and absorbs both green and blue light. Which color best describes how the fabric looks to the human eye?
A
blue
B
gree
C
red
D
white
4) A student is comparing the cells from a maple leaf with the cells of a group of single-celled organisms called paramecium. Which difference will the student most likely observe?
A
The maple leaf cells all have a membrane, but the paramecium cells do not.
B
The maple leaf cells all have a nucleus, but the paramecium cells do not.
C
Some of the maple leaf cells have different types of organelles, but the paramecium cells only have one type.
D
Some of the maple leaf cells have different shapes, but the paramecium cells only have one shape.
5) Which cell part is found in plant cells but not in animal cells?
A
cell membrane
B
cytoplasm
C
nucleus
D
cell wall
6) All of the following organisms can reproduce asexually except
A
owl
B
amoeba
C
paramecium
D
willow tree
7) Which source will a thermotropic plant grow toward?
A
nitrogen source
B
carbon dioxide source
C
heat source
D
mineral source
8) What do green plants produce that causes them to be classified as producers in an ecosystem?
A
food using light energy
B
organic matter using bacteria
C
habitats for mammals
D
oxygen in the atmosphere
9) Which allows for adaptations within a population that contribute to biological diversity over time?
A
accidental injuries
B
genetic variations
C
random behaviors
D
natural disasters
10) Throughout Earth's history, most species that have lived are now extinct. Which was the basic cause of extinction for most of these species?
A
lack of resources due to overpopulation
B
disease from pollution
C
hunting by humans
D
inability to adapt to environmental changes
11) Which part of the water cycle occurs after condensation and before runoff?
A
transpiration
B
precipitation
C
infiltration
D
evaporation
12) The Himalayan Mountains, just north of India, are still increasing in height. Which type of tectonic plate movement forms mountain ranges like the Himalayas?
A
an oceanic plate moving under a continental plate
B
two continental plates moving apart
C
an oceanic plate sliding past a continental plate
D
two continental plates colliding
13) Which object produces energy in the form of light?
A
Venus
B
the Sun
C
Halley's comet
D
the Moon
14) Which is the main cause of ocean tides?
A
Earth's rotation on its axis
B
the tilt of Eath's axis
C
uneven heating of the oceans by the Sun
D
the gravitational pull on the Moon
15) Which human activity would be the best way to help prevent erosion on a barren hillside?
A
build a dirt road
B
plant native grasses and shrubs
C
remove all old-growth trees
D
construct drainage ditches
16) Which best describes the main purpose of science?
A
to understand different cultural beliefs
B
to understand why languages are different
C
to understand phenomena in the natural world
D
to understand how decisions are made
*select an answer for all questions
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