The sky at night seems to be changing.
Words
- A glow is a soft, steady light. Like the glow of a lamp or the glow of the moon.
- If you say that something is disappearing, you mean that you can no longer see it.
- A reminder is something that helps you to think of something.
- Something that is wasteful uses too much of something valuable, such as energy, money, or time.
- If something affects animals, it has an effect or influence on animals. The animals will start to behave differently.
Assignment
1. What causes light pollution?
a Satellites that look at earth from space.
b The beautiful glow you can see.
c The world going out and seeing stars at night.
d Things like street lights and advertising.
2. How has the sky been changing in the last 10 years?
a It has become 10 percent brighter each year.
b It has become 10 percent brighter than 10 years ago.
c It has lost 10 percent of its stars and planets.
d It has not changed at all.
3. What is the effect of light pollution?
a It can affect our health and how we sleep.
b It could keep stars shining bright in the sky.
c People will start going out more at night.
d Researchers around the world can count more stars.
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