Unit 1 Test - Earth as a System
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1. Which of the events below is the most recent event in our Earth's past?
255 MYA- Early Insects
67 MYA- Extinction of Dinosaurs
4.6 billion years ago- Birth of the Earth
200 MYA- Super continent broke into continents
2. Pieces of Earth's lithosphere are pushed around by
Winds in the atmosphere.
Waves in the ocean.
Convection currents in the mantle.
Organisms in the soil.
3. Which of the following affects the density of matter?
None of the above
Use the image below to answer questions 4-6.
4. The diagram above shows a Bunsen burner heating a beaker of water on a beaker stand. The arrows represent the transfer of heat energy in the water. Which process is primarily responsible for the transfer of heat indicated by the arrows in the beaker of water?
5. The process above occurs because
Hot water is less dense than cold water and rises as it heats up.
Cold water is less dense than hot water and rises as it cools.
Cold water is more dense than hot water and rises as it cools.
Hot water is more dense than cold water and sinks as it heats up.
6. Provide another example of where the above process occurs.
The Theory of Continental Drift suggests that the continents were all once connected in a supercontinent called "Pangaea".
7. Provide 2 pieces of evidence to support the claim that Pangaea once existed.
Number your response like this: 1) _____________ 2) ______________
8. Waves created by earthquakes that travel through the Earth's interior and along Earth's surface are called
9. The bold line on the map below shows the San Andreas Fault. The San Andreas Fault is the result of
A large glacier.
Tectonic plate movement at a convergent boundary.
Tectonic plate movement at a transform boundary.
10. Subduction of the oceanic crust takes place because
Oceanic crust is denser than continental crust.
Continental crust is denser than oceanic crust.
Oceanic crust has more rocks in it.
Continental crust is thicker.
Use the below image to answer question 11.
11. At what point is the oceanic crust the oldest?
12. If the seafloor is spreading, then why is the amount of crust on Earth not changing? Explain in complete sentences.
13. According to the diagram below, the molten rock that erupts from the volcano comes from
water in the ocean.
subduction of the lithosphere.
the outer core.
14. Calculate the density of a piece of granite with a mass of 414 grams and a volume of 156 cm3.
Round to TWO decimal places (0.00) and don't forget your units!
15. What type of tectonic plate is made up of mostly basalt?
16. There is a convergent plate boundary just off the west coast of South America where the edge of the oceanic crust meets the continental crust. Which of the following features would you NOT expect to find in the surrounding area?
Folded mountains from uplift of continental crust.
An oceanic trench near a subduction zone.
A mid-ocean ridge where the crust moves apart.
Volcanoes with molten rock erupting.
17. Mountains are most likely to form when continents
move below sea level.
slide by one another.
run into one another.
Use the diagram of Earth's interior below to answer questions 18-20.
18. The Earth's crust is a solid with a density of 2.7-3.3 g/cm3. The mantle is a semi-solid with a density of 3.4-3.7 g/cm3. The crust is above the mantle because
The crust is a solid.
The mantle is less dense.
The crust is less dense.
The mantle is a semi-solid.
19. What information did scientists study in order to develop this model of Earth's interior?
Recordings of seismic waves produced by earthquakes.
Direct observation of the inner core.
Core samples from seafloor drillings.
Fossils found in rocks.
20. Scientists believe lithospheric plate movement occurs because of the convection currents contained in Earth's
21. Volcanoes are associated with which of the following 3 features of Earth's crust?
Transform Boundaries, Mantle, Epicenter.
Hot Spots, Divergent Boundaries, Subduction Zones.
Divergent Boundaries, Stratosphere, Trenches.
Inner Core, California, Islands.
22. Scientists often build scientific models to better understand something in our world or universe. Give one example of a model we used in class and explain how/why this model helped us to better understand our earth.
23. Convert 12 ounces (oz) to milliliters (mL). Round to 3 decimal places (ex: 0.000). Scale: 0.034 ounces (oz) = 1 milliliter (mL)
BONUS: How could you determine of a model of Earth is to scale? Explain in numbered steps as a procedure.
NO POINTS TAKEN OFF IF INCORRECT!
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