Topics from July 2018
- Can sunlight provide power?
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- How do jet engines work?
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- How does an aeroplane fly?
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- What is Greenwich Mean Time?
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- How do we measure time accurately?
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- How is time calculated?
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- What is a sundial?
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- Why do we need to measure time?
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- How can you lift very heavy objects without using powerful machinery?
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- How does a gyroscope stand up?
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- What is centrifugal force?
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- Why is it so hard to start a heavy object moving?
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- Why do falling objects keep travelling faster?
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- What is friction?
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- What stops us from falling off the Earth?
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- What is a force?
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- Can sound hurt?
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- How can sound detect submarines?
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- What causes thunder?
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- What is the sound barrier?
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- What is the Doppler Effect?
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- What is an echo?
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- How many sounds can we hear?
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- What is sound?
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- What are lasers?
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- How can light travel along a cable?
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- What is a spectrum?
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- How is light produced?
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- How fast does light travel?
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- What is light?
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- How does radar work?
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- What is a printed circuit?
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- How does radio communication work?
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- What are radio waves?
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- How do animal make use of magnetic forces?
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- How can a train float in the air?
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- What is an electromagnet?
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- What are magnets made of?
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- Magnetic motors
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- How does a compass work?
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- Which substances are magnetic?
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- Why do some metals stick to magnets?
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- What is a magnetic field?
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- What is magnetism?
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- What is a superconductor?
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- What is alternating current?
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- How does electricity produce heat and light?
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- How do batteries work?
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- How is electricity made?
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- What is an insulator?
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- What is Electricity?
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- Why don’t people fall off the Earth?
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- Why do rainbows form?
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- What is infrared energy?
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- What are microwaves?
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- Forms of Energy
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- Where does the Earth’s energy come from?
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- Forms of Energy
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- Natural Properties
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- Natural Properties
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