Unit 7: Earth and its habitats

The layers inside the Earth, volcanoes and earthquakes, and how animals are suited to their habitats.

• 7.1 The structure of the Earth – Crust, mantle and core – the Earth is like a giant egg.
• 7.2 Volcanoes – Where melted rock bursts through the crust.
• 7.3 Earthquakes – When the crust suddenly moves, the ground shakes.
• 7.4 Different habitats – Every animal is suited to its home.