On a xylophone, which length of metal has the highest pitch sound?
a. the shortest length
b. the middle length
c. the longest length
What is A. the smaller something is the higher the pitch
The longer or larger something is the lower the sound.
100
Which type of rock is formed when hot
lava cools?
A. Sedimentary
B. Igneous
C. Metamorphic
D. Sandstone
What is B. Igneous rocks come from volcanoes
100
Which item represents a unicellular life form?
A. earthworm
B. bacteria
C. potato
D. human
What is B. A bacteria is unicellular or made of only 1 cell.
The others are multicellular.
100
Which of the following statements best describes one
way that the Moon is different from Earth?
A. The Moon is not solid.
B. The Moon has no gravity.
C. The Moon has almost no atmosphere.
D. The Moon receives almost no solar light.
What is C. The Moon has less gravity than Earth and therefore holds its atmosphere less tightly than Earth.
Earth's gravity holds our atmosphere close by.
100
Which item is likely to float on water?
A. Water 1g/ml
B. Lead 3g/ml
C. Wood 0.9g/ml
D. Iron 11.3g/ml
What is C. If the density is <1.0 the object will float
200
Which of the following events involves a
consumer and producer in a food chain?
A. A cat eats a mouse.
B. A deer eats a leaf.
C. A hawk eats a mouse.
D. A snake eats a rat
What is B. the deer is the consumer and the plant is the producer.
200
Annette is using many tools to build a doghouse. For which of the following would Annette most likely use a tape measure while building the doghouse?
A. deciding which type of wood to use
B. removing extra nails from the wood
C. attaching different pieces of wood together
D. determining where to cut the wood
What is D. A tape measure would be used to determine where to cut the wood.
200
Which of the following statements best explains why the
tilt of Earth on its axis causes summer be warmer than
winter in the Northern Hemisphere?
A. The warm ocean currents flow from the tropics to the
Northern Hemisphere in the summer.
B. The rays of the Sun strike the Northern Hemisphere
more directly in the summer.
C. The greenhouse effect increases in the Northern
Hemisphere in the summer.
D. The Northern Hemisphere is closer to the Sun in the summer.
What is B. The suns rays strike the N. Hemisphere more directly in the summer.
200
Which of the following organisms produces energy from
sunlight?
A. worm
B. rabbit
C. hawk
D. grass
What is D. Grass is a plant and produces energy from sunlight through photosynthesis.
200
Which of these body systems acts most like an electrical circuit?
A. Nervous system
B. Skeletal system
C. Excretory system
D. Digestive system
What is A. The nervous system is most like an electrical circuit
300
Which of the following best represents one particular stage in a life cycle?
A. a fish swimming
B. a seed sprouting
C. a leaf growing
D. a dog eating
What is B. A seed spouting best represents a stage in a particular life cycle.
300
Michael has a pencil case made of pine wood. The surface of the pencil case scratches and dents easily. He wants to make a new pencil case that will not scratch or dent easily.
Which of the following should Michael do to make a new pencil case that will NOT scratch or dent as easily?
A. make the pencil case a different size
B. use a different material to make the pencil case
C. make the pencil case from another piece of pine wood
D. use a thicker piece of pine wood to make the pencil case
What is B. Use a different type of material to make the pencil case. He should use a material that that will not scratch or dent as easily.
300
Which best describes winter in N. America?
A. the southern hemisphere is tilted away from the sun
B. the northern hemisphere is tilted away from the sun
C. the Earth is further away from the Sun
D. The Earth is closer to the Sun
What is B. The tilt of the Earth determines the seasons. If the N. hemisphere is away from the sun it receives more indirect light and is winter.
300
Metal easily allows electrons to flow through it creating an electrical circuit. Metal is an example of a:
A. an ampere
B. a magnet
C. an insulator
D. a conductor
What is D. A conductor allows electrons to flow through it.
An insulator prevents electrons from flowing through it.
300
At what temperature would water be in a gas state?
A. 42 C
B. 0 C
C. 200 F
D. 120 C
What is C. Water boils at 100 C and 212 F
400
Which of the following is most likely to make a rock crack and crumble?
A. dew evaporating on the rock
B. leaves decaying on the rock
C. snow melting in a crack in the rock
D. water freezing in a crack in the rock
What is D. When water freezes it expands and can crack a rock.
400
Which of the following is the best estimate of the number
of stars in a typical galaxy?
A. tens
B. hundreds
C. thousands
D. billion
What is D. Billions of stars are in a typical galaxy
400
Ms. Norris measured the mass of a closed beaker
containing several ice cubes. The mass was 100 g. An
hour later, after the ice cubes had melted, Ms. Norris
measured the mass of the beaker again. What was the
mass of the beaker of water the second time?
A. 50 g
B. 75 g
C. 100 g
D. 125 g
What is C. The mass does not change.
400
What is the primary energy source that drives all weather
events, including precipitation, hurricanes, and tornados?
A. the Sun
B. the Moon
C. Earth’s gravity
D. Earth’s rotation
What is A the Sun is the primary source of Earth's energy
400
Which object is transparent?
A. mirror
B. lenses in a pair of glasses
C. foil
D. cloudy liquid
What is B. Transparent lets all light through. Opaque lets some light through and opaque blocks all light.
500
Which of the following statements best explains why stars appear to move across Earth’s sky each night?
A. Earth rotates on its axis.
B. The stars orbit each other.
C. Earth revolves around the Sun.
D. The stars rotate with the Moon
What is A. The Earth rotates on its axis.
The Earth does revolve around the Sun but the constellations remain the same for several months.
500
Which of the following causes a ship’s iron anchor to sink
to the ocean floor when it is released overboard?
A. chemical forces
B. gravity
C. magnetism
D. nuclear forces
What is B gravity. Iron is dense and sinks
500
New carpet is being measured for a room that is 5.5m
by 4.6m. On a measuring tape, what is the smallest
unit that is necessary to measure the room accurately?
A. millimeters
B. centimeters
C. meters
D. kilometer
What is B. The number behind the decimal represents centimeters.
500
Sugar is composed carbon, hydrogen, and oxygen.
Sugar is an example of which of the following?
A. an atom
B. a compound
C. an electron
D. a mixture
What is B. A compound is made up of different elements.
500
If you want to separate salt from water what is the best tool to use?
A. a strainer to sift
B. a hot plate to evaporate
C. a magnet to separate
D. a brush to sort
What is B. Evaporate the water out and the salt will be left.