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
2. What causes sound?
C. Vibrations
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.
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.
6. Long ago, people believed that all the stars and planets orbited ______________.
B. The Earth
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.
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.
10. Which of the following is NOT a metal that can be used to make a magnet.
A. Copper
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.
12A. True or False: Electricity can be very dangerous
True
12B. True or False: Lightning and electricity are two different things.
False
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.
