Exam (elaborations)
Natural Science Test
Natural Science test. Topics : Renewable Energy, Earth and its structure, Biosphere Total : 70
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NS FINAL EXAMName: Gr: Date: Total: 70
Question 1 Match column A with Columns B 10
1. Biosphere A. If from deep beneath the earth formed 1000s of years ago
2. Molten lava B. All water on earth forms part of this sphere
3. Hydrosphere C. All life and living on earth & in the ocean
4. Biomass D. Comes from inside the earth
5. Fossil Fuel E. Its renewable energy from living or once living things.
Question 2 Case Study Read the text below and answer the questions 20
Renewable energy, also referred to as ‘alternative energy’, is energy generated from a natural
source that is not depleted when used, such as wind or solar power. Renewable energy
has gained popularity as it does not harm the environment.The renewable energy market is
booming worldwide and is predicted to surpass fossil fuel use, thanks to such factors as falling
prices and the Paris Climate Agreement. It is seen by many as a route to mitigating climate
change, a problem brought on in part, by the widespread use of fossil fuels such as coal.
1. List 3 types of renewable energy 3
2. How would you SAVE energy at home? (3points) 3
3. What is happening to our climate change right now? Why isn’t this good 3
4. How do we use energy from the sun 3
5. Define NON RENEWABLE ENERGY. 2
6. List 2 examples of non renewable 2
7. Discuss the disadvantages of using non renewable energy 4
Question 6 Earth, ITS STRUCTURE and beyond 10
1. What is the term that we refer to when we get day and night from the spinning of the earth? 1
2. How long does it take for the earth to orbit the sun? 1
3. What is the revolution of the earth 1
4. How long does the revolution take? 1
5. Define ORBIT 1
6. Define axis 1
7. How many spheres are there for planet earth? 1
8. Draw the earth receiving sun light and indicate by means of labelling daytime and night-time 3
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