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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
chemical- electrical- mechanical
B
chemical- heat- mechanical
C
mechanical- light- electrical
D
mechanical - chemical - heat
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
The effect of friction on the object is reduced.
B
The force on the object is greater in cold temperatures.
C
Gravity is not acting on the object.
D
Air resistance on the object is not a factor.
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
white
B
blue
C
red
D
gree
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 nucleus, but the paramecium cells do not.
B
The maple leaf cells all have a membrane, 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
cytoplasm
B
nucleus
C
cell wall
D
cell membrane
6) All of the following organisms can reproduce asexually except
A
willow tree
B
paramecium
C
amoeba
D
owl
7) Which source will a thermotropic plant grow toward?
A
mineral source
B
carbon dioxide source
C
heat source
D
nitrogen 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
oxygen in the atmosphere
D
habitats for mammals
9) Which allows for adaptations within a population that contribute to biological diversity over time?
A
genetic variations
B
natural disasters
C
random behaviors
D
accidental injuries
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
inability to adapt to environmental changes
D
hunting by humans
11) Which part of the water cycle occurs after condensation and before runoff?
A
precipitation
B
infiltration
C
evaporation
D
transpiration
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
two continental plates colliding
D
an oceanic plate sliding past a continental plate
13) Which object produces energy in the form of light?
A
the Moon
B
Venus
C
the Sun
D
Halley's comet
14) Which is the main cause of ocean tides?
A
the gravitational pull on the Moon
B
Earth's rotation on its axis
C
the tilt of Eath's axis
D
uneven heating of the oceans by the Sun
15) Which human activity would be the best way to help prevent erosion on a barren hillside?
A
construct drainage ditches
B
build a dirt road
C
remove all old-growth trees
D
plant native grasses and shrubs
16) Which best describes the main purpose of science?
A
to understand how decisions are made
B
to understand why languages are different
C
to understand different cultural beliefs
D
to understand phenomena in the natural world
*select an answer for all questions
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