Grade: Grade 6 Subject: Science Unit: Plate Tectonics Lesson: 6 of 6 SAT: ProblemSolving+DataAnalysis ACT: Science

Unit Checkpoint

Unit Assessment

Question 1

At a divergent boundary, plates ___.

Question 2

What landform is created when two continental plates collide?

Question 3

Define subduction.

Question 4

Why are most earthquakes shallow at divergent boundaries?

Question 5

What is Pangaea?

Question 6

How is seafloor spreading evidence for plate tectonics?

Question 7

What type of boundary is the San Andreas Fault?

Question 8

Explain how mid-ocean ridges form.

Question 9

What causes volcanic eruptions at subduction zones?

Question 10

How fast do tectonic plates move on average?

Answer Key

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1. Move apart (separate)

2. Mountains (like the Himalayas)

3. When one plate slides beneath another at a convergent boundary

4. The crust is thin and cracking occurs near the surface

5. The supercontinent that existed about 200 million years ago

6. New rock forms at ridges and pushes older rock away symmetrically

7. Transform boundary

8. Magma rises where plates diverge, cools, and creates new oceanic crust

9. The subducting plate melts, and magma rises to the surface

10. About 2-10 centimeters per year (similar to fingernail growth)

Self-Assessment

ScoreMastery LevelNext Steps
9-10AdvancedMove on to the next unit!
7-8ProficientReview missed concepts, then proceed.
5-6DevelopingReview lessons 3-5 before moving on.
0-4BeginningRestart the unit from Lesson 1.