1. EARTH SCIENCE REVIEW

2. Historically, how has the compass been used?
for navigation
to predict weather
to measure temperature
for mineral identification
And the answer is…… A

3. Which device measures the air’s relative humidity?
Anemometer
Barometer
Sling Psychrometer
Thermometer
And the answer is…… C

4. What is the source of energy for the water cycle?
the Sun
Gravity
Clouds
the Oceans
And the answer is…… A

5. Jennifer is asked to record the air temperature and the pressure of the atmosphere every day for two weeks. Which pair of instruments will Jennifer need in order to complete her observations?
Anemometer and barometer
Thermometer and barometer
Anemometer and hygrometer
Thermometer and hygrometer
And the answer is…… B

6. Sulfur dioxide and nitrogen oxides are gases from factories, power plants, and automobiles that enter the air as pollution. Which of the following statements must occur for acid rain to form from air pollution?
Winds have to carry the acids over oceans.
The gases have to combine with water vapor.
The gases have to form cumulonimbus clouds.
Winds have to mix the gases in specific proportions.
And the answer is…… B

7. A large cold front is moving past the school on a hot, humid summer day. Which best describes the type of weather as the cold front passes by?
A drought
A monsoon
A hurricane
A thunderstorm
And the answer is…… D

8. Which is an effect that cities have on weather?
Small numbers of plants cause rain to fall more often.
Large numbers of houses cause the wind to be stronger.
Small areas of open water cause fog to be more common.
Large areas of pavement cause the temperature to be hotter.
And the answer is…… D

9. OPEN RESPONSE
Many different devices are used to give scientists information about the weather. List four different weather measurement devices that could be used during a weather investigation. Provide an accurate description of what each instrument measures.

10. Suppose that aliens drag the planet Mars to half its present distance from the Sun. What would happen?
The Martian year would lengthen.
The Martian year would shorten.
The Martian day would lengthen.
The Martian day would shorten.
And the answer is…… B

11. Which is a reason for Arkansas having multiple seasons?
the tilt of Earth’s axis
the speed of Earth’s orbit
Earth’s distance from the sun
Earth’s gravitational pull toward the Moon
And the answer is…… A

12. Which occurs as a result of the rotation of Earth about its own axis?
the water cycle
seasons of the year
sunrises and sunsets
global climate changes
And the answer is…. C

13. The table below gives four fossils that have been found by an archeologist.
Which fossil is most likely to have come from a location that once had a cold, snowy climate?
Fossil 1
Fossil 2
Fossil 3
Fossil 4
And the answer is… D
Fossil
Description 1
banana tree leaf 2
cactus burr 3
sand crab shell 4
woolly mammoth tusk

14. How is the Earth similar to a bar magnet?
Both have only one magnetic pole.
Both produce invisible lines of magnetic force.
Both have magnetic fields caused by the mineral magnetite.
Both have magnetic fields that must be recharged.
And the answer is…… B

15. Why would explorers use a compass when traveling to unknown lands?
to measure the quality of drinking water
to protect themselves from wild animals
to locate a direction of travel
to determine levels of humidity in tropical areas
And the answer is…… C

16. Alisha’s teacher glued a needle to a piece of cork so that the needle would float. Then he used a magnet to magnetize the needle. When the needle was placed in a bowl of water, it tuned to point north. Which best describes the reason that the needle pointed north?
The cork must also have been magnetized.
The magnetic field of Earth affected the needle.
The magnetic current in the bowl of water affected the needle.
The teacher must have placed the magnet to the south of the bowl.
And the answer is…… B

17. Which planet has the longest planetary year?
Earth
Venus
Saturn
Neptune
And the answer is…… D

18. Currently Antarctica is the coldest and driest place on Earth
Currently Antarctica is the coldest and driest place on Earth. Paleontologists have found dinosaur fossils in rock layers below the ice. Based on this evidence, which is a reasonable conclusion about the climate of Antarctica in the past?
Antarctica has always had the same climate as at present.
At some time in the past, Antarctica was a hot, dry desert.
At some time in the past, Antarctica was much warmer and wetter.
At some time in the past, Antarctica was colder and wetter than it is now.
And the answer is…… C

19. What would most likely be measured during an investigation of the water cycle?
Wind speed
Ozone layer
Natural gas emissions
Precipitation amounts
And the answer is……. D

20. What is the best measure to use in determining the effect of solar energy on Earth’s Atmosphere?
The temperature of the air
The temperature of the ocean
The density of clouds in the sky
The amount of rainfall on a rainy day
And the answer is…… A

21. The table below shows four unknown geographic locations.
Climate Features of 4 Locations
Which is most likely located near the equator?
Location 1
Location 2
Location 3
Location 4
And the answer is….. C
Location
Climate Features 1
cold temperatures year round, constant and heavy precipitation 2
cold temperatures six months out of the year, light to moderate precipitation 3
warm temperatures year round, moderate precipitation 4
hot temperatures during daylight, very cold during night, and little to no precipitation

22. Which would provide evidence of seafloor spreading?
Higher levels of salinity in the ocean water
Stronger currents at the surface of the ocean
Cooled magma found on the edge of the plates
Greater reproduction levels for organisms at the bottom of the ocean
And the answer is…… C

23. Most of Arkansas depends on ground water for drinking water and irrigation of crops. What process in the water cycle most directly renews ground water supplies?
Evaporation
Precipitation
Transpiration
Condensation
And the answer is…… B

24. Why should plants be included in investigations about the water cycle?
Plants speed up the water cycle by removing carbon from the air.
Plants start the water cycle when they make water in photosynthesis.
Plants are part of the water cycle through the process of transpiration.
Plants stop the water cycle because they absorb it and stop the flow to streams.
And the answer is…… C

25. In 1942 wartime pilots discovered high altitude currents of air that moved at speeds averaging 180 kilometers per hour. What area of the atmosphere did they discover?
Jet streams
Ozone layer
Trade winds
Greenhouse effect
And the answer is…… A

26. BONUS ROUND! (SCIENCE THIS YEAR) (MOST CORRECT 30pts; 2nd 20 pts; 3rd 10 pts)

27. CORRECT ANSWER Book 1: Nature of Science Book 2: Basic Chemistry
Book 3: Solutions
Book 4: Newton’s Laws of Motion
Book 5: Energy
Book 6: Organ Systems
Book 7: Plant Systems and Reproduction
Book 8: Earth Science