alleryStart learning →Dig through the layers
Read exercise and reference answers
- Sequence
- Item
- Crust
- Item
- Mantle
- Item
- Core
- Instructions
- Tap two matching tiles to merge deeper: crust, mantle, core.
_Source: syllabus Geography, Ch 3 'Interior of the Earth' (kegy203)_
ICSE Class 9 Structure of the Earth — practice questions
Explore 27 free Structure of the Earth questions in ICSE Class 9 Geography. Open each question or exercise to read its content, reference answers and available explanation.
Practise Structure of the Earth with Quill →Structure of the Earth questions and exercises with answers
Showing questions 1–27 of 27.
Dig through the layersRead the answer and worked solution →Match the quake wordsRead the answer and worked solution →P-wave or S-waveRead the answer and worked solution →Tap the wrong quake wordRead the answer and worked solution →Quick quake picksRead the answer and worked solution →True of the P-wavesRead the answer and worked solution →Earth facts, true or falseRead the answer and worked solution →An earthquake is caused by the release of energy along a:Read the answer and worked solution →The point where an earthquake's energy is released is called the:Read the answer and worked solution →The surface point directly above the focus is the:Read the answer and worked solution →The instrument that records earthquake waves is the:Read the answer and worked solution →The most easily available direct source of earth material is:Read the answer and worked solution →Gold mines in South Africa reach depths of about:Read the answer and worked solution →Mines cannot go much deeper than 4 km mainly because:Read the answer and worked solution →The deepest drilling project so far is at:Read the answer and worked solution →P-waves are similar in character to:Read the answer and worked solution →S-waves can travel only through:Read the answer and worked solution →Which waves are considered the most damaging?Read the answer and worked solution →The last waves to report on the seismograph are the:Read the answer and worked solution →The shadow zone of P-waves appears as a band between:Read the answer and worked solution →The zone beyond 105 degrees from the epicentre does not receive:Read the answer and worked solution →The S-wave shadow zone covers about what share of the earth's surface?Read the answer and worked solution →Reflection of earthquake waves makes them:Read the answer and worked solution →Refraction of earthquake waves happens when they:Read the answer and worked solution →S-waves vibrate perpendicular to their direction in the vertical plane, creating:Read the answer and worked solution →Gravity readings that differ from expected values are called:Read the answer and worked solution →Which of these is an INDIRECT source of knowledge about the interior?Read the answer and worked solution →
Worked practice questions
Match the quake words
Read exercise and reference answers
- Matching pairs
- Left
- Focus
- Right
- Where energy releases
- Left
- Epicentre
- Right
- Directly above focus
- Left
- P-waves
- Right
- First to arrive
- Left
- S-waves
- Right
- Arrive with a lag
- Left
- Fault
- Right
- Sharp break in rocks
- Instructions
- Tap a term on the left, then its meaning on the right.
_Source: syllabus Geography, Ch 3 'Interior of the Earth' (kegy203)_
P-wave or S-wave
Read exercise and reference answers
- Left
- S-waves
- Items
- Item
- Move faster
- Answer
- P-waves
- Item
- Time lag
- Answer
- S-waves
- Item
- Primary
- Answer
- P-waves
- Item
- Secondary
- Answer
- S-waves
- Item
- Like sound
- Answer
- P-waves
- Item
- Solids only
- Answer
- S-waves
- Right
- P-waves
- Instructions
- Swipe the card right or left into its wave type.
_Source: syllabus Geography, Ch 3 'Interior of the Earth' (kegy203)_
How to practise
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