Which of these traits would besthelp an animal
survive in the desert?
A has large horns or antlers
B needs little water to survive
C can climb trees quickly and easily
D can swim quickly away from predators
100
There is wire coiled around an iron bar. Which one of the following items should be attached to the ends of the wire to
make an electromagnet?
A a nail
B a switch
C a battery
D a magnet
100
Which of these statements describes how clouds
form?
A Clouds form when air containing water
vapor rises, warms, and condenses on dust
particles.
B Clouds form when air containing water
vapor rises to where dust particles are
located.
C Clouds form when air containing water
vapor rises, cools, and condenses on dust
particles.
D Clouds form when air containing water
vapor falls to where dust particles are
located.
100
Which of these lists only nonliving characteristics of most deserts?
A cacti, dry air, and sand
B cacti, snakes, and insects
C sand, lakes, and high temperatures
D sand, dry air, and high temperatures
100
fne city of Los Angeles must provide drinking
water to a large population. It rains mostly
during the winter in Los Angeles.
Which of these methods would óesr help the
city provide drinking water all year for the large
population?
A create more streams
B store rainwater in reservoirs
C move water from the ocean to the city
D drink less water in the summer than in the
winter
200
Which of these roles do decomposers play in an
ecosYstem?
A They eat living Plants'
B They catch and eat animals.
C They feed on living animals without killing
them.
D They recycle matter from dead plants and
animals.
200
In class, Celia connected a coil of wire to a
battery and picked up a few paper clips' What
coulil Celia put inside the coil to pick up more
paper cliPs?
A a compass
B an iron nail
C a Plastic screw
D another battery
200
A forested area was cleared to build a new mall
and parking lot. Aisha wondered if this changed
the weather in that area.
Which of the following questions should Aisha
ask to investigate the situation?
A What are the types of stores in the mall?
B How many people used the land after the
mall was built?
C How many different species used the area
before and after the mall was built?
D What was the average temperature of the
area before construction and after the mall
was built?
200
Which of these is usually found in coral reefs but
not in lakes?
A fish
B sand
C snails
D salt water
200
Why does the Moon stay in orbit around Earth?
A because Earth's gravitational pull is
balanced by the Moon's motion
B because Earth and the Moon repel each
other just as north and north on magnets do
C because the Moon is spinning in one
direction and Earth is spinning in another
direction
D because the Sun's gravitational pull on the
Moon equals Earth's gravitational pull on
the Moon
300
A bear eats berries. Which of these statements best describes the relationship between the bear and the plant?
A The plant helps the bear by providing it
with food, and the bear helps the plant by
dispersing its seeds.
B The plant helps the bear by providing
shelter, and the bear harms the plant by
eating its fruit.
C The bear helps the plant by dispersing its
seeds, but the plant does not help or harm
the bear.
D The plant helps the bear by providing it
with food, and the bear does not help or
harm the plant.
300
How is energy converted when a lamp is turned on?
A Electrical energy is converted into light
energy and heat energy.
B Light energy is converted into heat energy
and electrical energy.
C Electrical energy and heat energy are
converted into light energy.
D Light energy and heat energy are converted
into electrical energy.
300
What change happens in the outside air as an
airplane flies higher in the atmosphere?
A There is more gravity.
B There is less air pressure.
C There is less heat from the Sun.
D There is more air pressure.
300
A compass needle is
A a long Piece of Plastic.
B a thin Piece of copper.
C amagnetized Piece of iron'
D a rolled up piece of aluminum foil'
300
Janel learned an easy way to conserve fresh
water. Which of these activities can best
conseÌve fresh water?
A Save fresh water by drinking bottled water.
B Turn off the running water when brushing
your teeth.
C Clean the driveway and sidewalk with a
hose that can be quickly shut off.
D 'Water the lawn with an automatic sprinkler that turns on every afternoon.
400
Robins build nests in the trees of a forest. Deer
eat the leaves of the trees. After the.trees die,
termites eat the trunks of rlead trees.
Which organisms are decomposers in this forest?
A deer
B trees
C robins
D termites
400
Cameron is going to build an electric motor for
the science fair. First, he needs to construct an
electromagnet.
What is the Jírst step he must take in order to
construct an electromagnet?
A get a batterY, a wire, and an iron rod
B test the electromagnet using a compass
C attachthe ends of the wire to the battery
D wrap the wire many times around the
iron rod
400
WhÍch of the following is the smallest obiect in
our Solar System?
A a planet
.B astar
C agalaxy
D an asteroid
400
Water vapor is present in the atmosphere and
falls to Earth as rain. What must occur for rain
to fall?
A Ice crystals must melt in the atmosphere.
B Two clouds must collide in the atmosphere.
C Water vapor in clouds must become warm
enough.
D Water droplets in clouds must become large
enough.
400
Hurricanes are storms that form over the ocean.
What conditions cause hurricanes to form?
A cool ocean water and dry air
B warm ocean water and dry air
C cool ocean water and moist air
D warm ocean water and moist air
500
ilhich of these are least lìkely to be in a place
that gets a large amount of rain throughout the
year?
A ferns
B cacti
C grasses
D large trees
500
Liz places two bar magnets next to each other with the south side near each other. Which of these best predicts
what will happen when she lets go of the
magnets?
A The magnets will not move at all'
B The magnets will rotate in circles'
C The magnets will be attracted toward
each other.
D The magnets will be repelled away from
each other.
500
Cities along the ocean usually have
A cold winters and hot summers.
B cold winters and cool summers.
C mild winters and cool suÍì.mers.
D mild winters and hot summers.
500
A weather balloon is released into the
atmosphere. What would change the size of the
balloon as it rises?
A an increase in temperature
B a decrease in carbon dioxide gas
C a decrease in atmospheric pressure
D an increase in atmospheric pressure
500
Which of these statements describes how the Sun
produces heat?
A Heat is produced as the Sun travels through
space.
B Heat is produced when hydrogen is made
into helium through fusion.
C Heat is produced when hydrogen is burned
and combined with oxygen.
D Heat is produced on the surface of the Sun
and stored inside the Sun's core.