2.5.1

The Composition of The Earth

Test yourself

The Composition of The Earth

The Earth is composed primarily of several different elements.

Illustrative background for Structure of the EarthIllustrative background for Structure of the Earth ?? "content

Structure of the Earth

  • The Earth is made up of 4 layers:
    • The crust.
    • The mantle.
    • The outer core.
    • The inner core.
Illustrative background for Composition of the EarthIllustrative background for Composition of the Earth ?? "content

Composition of the Earth

  • The Earth is made of the following elements:
    • Iron 32%
    • Oxygen 30%
    • Silicon 15%
    • Magnesium 14%
    • Sulphur 3%
    • Nickel 2%
    • Calcium 1%
    • Aluminium 1%
    • Other elements 2%

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Disciplinary Knowledge

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium