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Grade 6 Earth Science Mid-Term Exam
1.

What is the name of the supercontinent that scientists believe existed millions of years ago?

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2.

What is the main force that causes Earth's tectonic plates to move?

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3.

Which type of plate boundary occurs when two tectonic plates pull apart from each other?

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4.

When two continental plates collide at a convergent boundary, what large geological feature is often formed?

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5.

The San Andreas Fault in California, where two plates slide past each other horizontally, is an example of what type of plate boundary?

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6.

Which layer of Earth is a thick, hot, rocky layer that flows slowly and allows the tectonic plates to move on top of it?

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7.

At which type of plate boundary is new ocean crust formed?

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8.

Which type of rock is formed when molten magma or lava cools and solidifies?

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9.

What is the process called when rocks are broken down into smaller pieces (like sand or gravel) by natural forces such as wind, water, or ice?

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10.

How are sediments turned into sedimentary rock?

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11.

Rocks that are formed when existing rocks are changed by extreme heat and pressure beneath Earth's surface are called:

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12.

Limestone, sandstone, and shale are common examples of which type of rock?

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13.

Which term describes the average weather conditions in a region over a very long period of time (e.g., 30 years or more)?

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14.

What instrument is used to measure air temperature?

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15.

What is the primary source of energy that drives Earth's weather and climate?

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16.

In the water cycle, what is the process where water vapor in the air cools and changes back into tiny liquid water droplets, forming clouds?

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17.

Which of the following is a form of precipitation?

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18.

Which planet in our solar system is often called the "Red Planet" due to its reddish appearance?

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19.

What is the correct order of the first four planets from the Sun?

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20.

What causes Earth to experience day and night?

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21.

Which celestial body orbits Earth and is the primary cause of Earth's ocean tides?

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22.

What is the name of our home galaxy, which contains our solar system?

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23.

Which of the following celestial bodies is primarily composed of ice, dust, and small rocky particles, and orbits the Sun in a highly elliptical path?

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24.

Define "weathering" and "erosion" and explain the key difference between them.

25.

Describe how convection currents in Earth's mantle contribute to the movement of tectonic plates.

26.

You want to design an experiment to test if different types of soil affect how fast seeds grow. What would be your independent variable and your dependent variable in this experiment?

27.

Explain why Venus is much hotter than Earth, even though it is not the closest planet to the Sun.

28.

Describe at least two ways that humans can impact Earth's climate.

29.

If you were making a model of the solar system, what would be one challenge you would face in trying to accurately represent the distances between planets?

The Rock Cycle
Igneous Rock
Sedimentary Rock
Metamorphic Rock
Weathering, Erosion, Deposition & Compaction, Cementation
Heat & Pressure
Melting & Cooling
Heat & Pressure
Weathering, Erosion, Deposition & Compaction, Cementation
Melting & Cooling
30.

Based on the rock cycle diagram, what processes turn igneous rock into sedimentary rock?

31.

According to the diagram, what processes turn metamorphic rock into igneous rock?

Read the following experimental setup and answer the question.

32.

A student sets up an experiment to see if fertilizer helps plants grow taller. They have three groups of bean plants: Group A gets no fertilizer, Group B gets half a teaspoon of fertilizer, and Group C gets one full teaspoon of fertilizer. All plants receive the same amount of water and sunlight. After two weeks, the student measures the height of each plant.

What is the purpose of Group A in this experiment?

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