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near, rocky, orbit,
powerful

Alireza is visiting an observatory. He is talking to Ms. Tabesh
who works there.

Ms.Tabesh: Are you interested in the planets?
Alireza: Yes! They are really interesting for me, but I don’t know
much about them.
Ms.Tabesh: Planets are really amazing but not so much alike. Do you
know how they are different?
Alireza: Umm... I know they go around the Sun in different orbits.
Ms.Tabesh: That’s right. They have different colors and sizes, too.
Some are rocky like Mars, some have rings like Saturn
and some have moons like Uranus.
Alireza: How wonderful! Can we see them without a telescope?
Ms.Tabesh: Yeah..., we can see the planets nearer to us without
a telescope, such as Mercury, Venus, Mars, Jupiter
and Saturn. We can see Uranus and Neptune only
with powerful telescopes.
Alireza: And which planet is the largest of all?
Ms.Tabesh: Jupiter is the largest one. It has more than sixty moons.
Do you want to look at it?
Alireza: I really like that.

2
Answer the following questions orally.

1. How are the planets different? LESSON
2. Can we see all planets without a telescope?
3. Do you know the names of the planets in Persian?
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