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Staar Release Review 2
Test Description: Review 2
Instructions: Answer all questions to get your test result.
1) WHich of these was most likely formed by a glacier?
A
a wide valley
B
a lava flow
C
a mountain range
D
a deep ocean
2) A mixure of large plastic, steel, and glass beads were place in a container. It will be easy to seperate because they are
A
less dense than water
B
have the same mass
C
solids
D
attracted to a magnet
3) Which two traits best help a cactus survive in a desert?
A
sharp spines and waxy stems
B
waxy stems and large flowers
C
sweet fruit and sharp spines
D
large flowers and sweet fruit
4) In which situation does light bend?
A
light hits a wall
B
light moves through air into water
C
light hits a mirror
D
light passes through outer space
5) A power plant uses steam and cold water from a nearby well. What is it using to produce electricity?
A
biofuels
B
fossil fuels
C
geothermal energy
D
solar energy
6) In the fall and winter many trees lose their leaves in response to cooler temps and
A
more direct sunlight
B
increase in humidity
C
a decrease in wind speed
D
fewer hours of daylight
7) Which produces energy from an alternative source
A
building water treatment plant to improve water quality
B
burning coal to heat homes
C
using biofuels to generate electricity
D
replacing lawns with plants that require less water
8) How do objective lens' help a scientist observe the moon? They...
A
refracts light
B
block light
C
reflects light
D
produce light
9) On which side of your house should you look out the window to watch the sunrise each day?
A
east
B
north
C
south
D
west
10) Which of these best describes climate rather than weather?
A
wind speed is changing as a storm moves through an area
B
the rainfall during one year was greater than the rainfall during the following year
C
the temp is decreasing in a slow moving cold front
D
annual high temperatures in the summer have increased over many decades
*select an answer for all questions
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