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Chapter 21 - The Solar System

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6th Grade

Used 53+ times

Chapter 21 - The Solar System
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30 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which shape describes a planet's orbit?

a circle
an ellipse
a straight line

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is Venus hotter than Mercury?

Venus's surface is covered with lava
Venus has a strong greenhouse effect
Venus is closer to the sun than Mercury is

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are the outer planets similar?

They have solid surfaces
They are about the same size
They have armosperes that are mostly hydrogen

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pluto was known as a planet but is now a(n)

asteroid
meteoroid
dwarf planet

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An astronomical unit is the average distance

from Earth to Mars
from Earth to the Sun
from Earth to the Moon

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Orbit close to the Sun and have rocky surfaces

outer planets
inner planets
dwarf planets

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Have gaseous surfaces and more than one moon

inner planets
outer planets
dwarf planets

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