LEV KS3 Y8 Our Incredible Earth

The Earth is made up of three main parts, what is the centre called?

• Crust

• Core

• Middle

• Mantle

What is the core made up of?

• Iron and Copper

• Nickel and carbon

• Iron and nickel

• Nickel and Zinc

The crust and the upper part of the mantle are cracked into a number of large pieces. These are called what?

• Continents

• Tectonic rafts

• Tectonic plates

• Earthquakes

What type of rock is formed from magma which is pushed to the surface of the crust?

• Igneous

• Sedimentary

• Metamorphic

What type of rock is formed as a result of heat and increased pressure acting on existing rocks over long periods of time?

• Igneous

• Sedimentary

• Metamorphic

What type of rock is formed from layers of sediments laid down in lakes or seas over millions of years?

• Igneous

• Sedimentary

• Metamorphic

In the rock cycle, what is it called when rocks are broken down into smaller bits?

• Transportation

• Deposition

• Weathering

• Erosion

Recycling is better than making things from scratch because:

• It uses less of the Earths limited resources

• It uses less energy

• It saves money as energy is expensive

• All of the above

In the carbon cycle, what process removes carbon dioxide from the air?

• Respiration

• Photosynthesis

• Combustion

• decomposition

What processes release carbon dioxide in to the air?

• Photosynthesis and Combustion

• Combustion and Respiration

• Photosynthesis and Respiration