2.5.1

The Composition of The Earth

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The Composition of The Earth

The Earth is composed primarily of several different elements.

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Structure of the Earth

  • The Earth is made up of 4 layers:
    • The crust.
    • The mantle.
    • The outer core.
    • The inner core.
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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

4Thinking Scientifically

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