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