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Structure of the Earth — Free MYP2 Sciences Practice Questions
1QuestionHow Earth Structure Affects LandformsConcept Practice
2 marks~3 minCriterion A
The diagram below shows a cross-section of Earth with three layers labeled A, B, and C, from the outside inward.
a
Identify the name of layer A. [1]
b
State one reason why layer A is important for supporting life on Earth's surface. [1]
Solutions
2QuestionTectonic Plates and Plate Boundaries IntroductoryAssessment Practice
5 marks~8 minCriterion C
The table below shows earthquake depth and distance from a ocean trench at a subduction zone (where one tectonic plate sinks beneath another).
| Distance from trench (km) | 0 | 50 | 100 | 150 |
|---|---|---|---|---|
| Earthquake depth (km) | 10 | 30 | 60 | 80 |
a
Identify the pattern shown in the data. [1]
b
Explain why earthquakes occur at greater depths further from the trench. [2]
c
A student claims this data could also fit a divergent boundary (where plates move apart). Compare the earthquake pattern at a divergent boundary with the pattern shown above, and state whether you agree with the student. [2]
Solutions
3QuestionProperties and Composition of Each LayerConcept Practice
2 marks~3 minCriterion B
A student drops the same steel ball from the same height into three materials: solid crust rock, liquid outer core simulant, and solid inner core simulant. The time for the ball to reach the bottom of each sample is recorded.
a
Identify the independent variable and the dependent variable in this investigation. [1]
b
Identify one controlled variable and explain why it must be kept the same. [1]
Solutions
4QuestionHow Earth Structure Affects LandformsAssessment Practice
6 marks~9 minCriterion D
Seaside Village sits on a coast near a subduction zone — a place where the Pacific Plate dives beneath the continental plate. This causes frequent earthquakes, volcanic eruptions, and tsunamis. Volcanic ash from eruptions makes the surrounding soil very fertile, supporting local farming.
a
Identify one benefit that volcanic activity brings to farmers in Seaside Village. [1]
b
Describe how living near a subduction zone creates two different risks for residents of Seaside Village. [3]
c
Compare the benefits and risks of living in Seaside Village. State whether you think the benefits outweigh the risks, and give reasons to support your view. [2]
Solutions
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