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Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 14: Astronomy - Question 7

Cambridge Secondary (7-9) · Unit 14: Astronomy

Question 7

The Moon's core is much smaller than Earth's. It contains a mixture of iron with small amounts of sulfur and nickel. The Moon's mantle is rich in iron and magnesium. Its crust is covered with a layer of regolith. Regolith is a type of dust that was formed from asteroids, comets and meteors hitting the Moon for billions of years. On the surface of the Moon are large plains known as maria. They were created by ancient volcanic activities. There are also highlands and many craters. The back of the Moon, the part that is not visible from Earth, has many more craters.

Work in groups. View images of Earth, Theia and the Moon. Choose one to model.

Choose a polystyrene foam ball or modelling clay as the base material for your model.

Choose appropriate materials to show the different compositions and physical features of
a. young Earth and Theia;
b. young Earth and Theia during collision;
c. Earth and the Moon after collision.

List any additional materials you will need.

Use the image to guide your design and surface features to make your model more accurate and realistic. Polystyrene foam balls are lightweight and easy to work with, while clay allows for more sculpting and detailing.
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