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1st Grade Session 4 Review

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  • 12B. True or False: Lightning and electricity are two different things.
    False
  • Why are caves not a good place to live?
    Most caves are not great places for humans to live because they can be filled with dangerous animals, and they're quite cold and damp.
  • 8B. True or False: If you walk to the bottom of the Earth, you will fall off.
    False
  • Why did Nikola Tesla stop working with Edison?
    Tesla stopped working with Thomas Edison because Edison lied about paying him $55,000 for his work.
  • What does "democracy" mean?
    It means ‘people power’
  • How did the printing press help spread information?
    The printing press made it easier for us to share information quickly and easily by making lots of books very quickly.
  • 3. Why can’t sound travel in a vacuum?
    Sound cannot travel in a vacuum because there are not particles for it to vibrate and travel through.
  • 7. Why do the stars look so tiny, even though they are actually enormous, like our sun?
    Stars look so tiny, even though they are actually enormous, because they are so far away.
  • Why didn’t Choe Yun-ui’s printing press become popular?
    Mongolia was attacking Korea at that time.
  • 13. What happens when electricity and metal are near each other?
    When electricity and metal are near each other, the metal pulls (attracts) the electricity.
  • 8A. True or False: The Earth is round and flat like a pancake.
    False
  • 9. Explain in your own words, how the Moon causes the tides here on Earth. Give two details.
    The Moon causes tides on Earth by its gravity pulling on the Earth's oceans. This can pull the tides in or out.
  • 2. What causes sound?
    C. Vibrations
  • Why did Kublai Khan like Marco Polo so much?
    He liked Marco Polo because he was clever and learned many languages.
  • 5. What do we call it when light bends because of curved glass or water?
    When light bends because of curved glass or water, it's called refraction.
  • Why does the Netherlands struggle with flooding?
    The Netherlands always had problems with flooding because it's an incredibly low-lying country.
  • 14. What is a battery, and why are they useful? Give two examples of things that use batteries.
    A battery is a device that stores electricity. They are useful for using electricity for later or for smaller devices, such as an electric toy.
  • Why was Justinian not allowed to marry Theodora?
    She was an actress.
  • What made Rapa Nuia tough place to live?
    Rapa Nui was a difficult island to live on because it has strong winds and poor soil.
  • 10. Which of the following is NOT a metal that can be used to make a magnet.
    A. Copper
  • 12A. True or False: Electricity can be very dangerous
    True
  • Who could vote in ancient Athens?
    Only Athenian citizens were allowed to vote. Slaves, foreigners, women, and children were not allowed to vote.
  • Who was Kublai Khan?
    Kublai Khan was the leader of the Mongolians. He also ruled most of Asia.
  • 11. Why might you want to use a compass? Give two reasons why they are useful.
    We might want to use a compass to find the correct direction on Earth. They are useful for navigating through sea or finding our way on land.
  • 15. What is a generator able to create? Name one fuel we can use to power them.
    A generator is able to create electricity. One fuel that we can use to power them is coal.
  • 4. How does light travel? *Hint* What can light NOT do?
    Light travels in a straight light. It doesn't bend or curve on its own.
  • What was Confucius' Golden Rule?
    The Golden Rule is to treat others in the way that we'd like to be treated.
  • What was China like when Confucius was alive?
    Chaotic and unstable, all the different leaders fought with eachother.
  • How did Galileo realize the Earth wasn't the center of the universe?
    He noticed planets have phases and moons orbit around other planets.
  • 6. Long ago, people believed that all the stars and planets orbited ______________.
    B. The Earth
  • 1. In your own words, explain why the ‘Scientific Method’ is so important for learning more about the world we live in. Give two details.
    The 'Scientific Method' is so important because it helps us find what is true or untrue. For example, we can test an idea, observe it in an experiment, and writ
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