What you learnt...You learnt about how electricity is generated and the advantages and disadvantages of different technologies from coal power stations to solar cells. You also looked at global warming and the impact humans have on the environment. You learnt about Earth's place in the Solar System and how humans have explored space and the threats posed by asteroids. Finally you looked at the ideas about the origin of the Universe and how these ideas have changed over time.
What now...Select the topic you want to review from the menu and let's get started.
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The Lessons...P2.1: Electricity from the Sun
P2.2: Other Ways to use Energy from the Sun P2.3: The Dynamo Effect, AC, and Generators P2.4: Generating and Distributing Electricity P2.5: Global Warming P2.6: Power and Paying for Electricity P2.7: Fossil Fuels and Biomass P2.8: Nuclear Power P2.9: Alpha, Beta and Gamma Radiation P2.10: Uses of Radioactivity P2.11: The Solar System P2.12: Asteroids, Comets and the Moon P2.13: The Big Bang P2.14: The Life Cycle of Stars P2.15: Changing Ideas on the Universe |