Planets
Moons and Dwarf Planets
Other Objects
Measuring and Modeling the Solar System
Other Concepts
100

True or False: Venus is the closest planet to the Sun.

False. Mercury is the closest planet to the Sun.

100

True or False: The Earth is the only planet with a moon.

False.

100

True or False: The asteroid belt is found between Mars and Jupiter.

True

100

True or False: Astronomical Units (AU) are bigger than other units.

False

100

Which will have a longer orbital period: Mars or Neptune?

Neptune, because it is further from the Sun so it has a longer distance to travel.
200

True or False: Mars is a gaseous planet.

False. Mars is a rocky planet.
200

True or False: Dwarf planets do not orbit the Sun.

False.

200

What are comets made of?

rock and ice

200

What is one AU equal to?

The distance between the Sun and Earth.

200

True or False: Moons are considered a natural satellite.

True

300

Which planets are warmer, the inner planets or the outer planets?

The inner planets.

300

What is different about a dwarf planet's orbit from that of a regular planet?

Dwarf planets share their orbital paths with other objects of a similar size.
300

What is unique about a comet's orbit.

It is long and elliptical in shape.

300

Why do scientists use astronomical units?

Everything in space is so spread out, AU help us calculate distance in space with much smaller numbers.

300

What does the asteroid belt separate?

The inner planets from the out planets.
400

Why can't we land on the surface of the outer planets?

They are made of gas and have no "surface" like the rocky inner planets.

400

Which planet has the most moons? (as far as we know)

Jupiter (has at least 53 moons).

400

What force holds comets together?

Gravity

400

What must someone do to create an accurate model of the solar system.

Create a scale by using cm. or in. and multiplying them by the AU of distance between the planets.

400

Name an example of a dwarf planet besides Pluto.

Ceres or Makemake

500

Which two planets are also known as Ice Giants?

Uranus and Neptune
500

What is different about the orbit of moons and the orbit of dwarf planets?

Moons orbit planets, dwarf planets orbit the Sun.

500

Name the differences between a Meteoroid, a Meteor, and a Meteorite.

Meteoroid: small rocky particle that moves through space


Meteor: a meteoroid that has entered Earth's atmosphere and produces a streak of light (shooting star)


Meteorite: a meteoroid that has struck a planet or moon

500

Why do Mercury and Venus have a distance from the Sun of less than 1 AU?

They are closer to the Sun than Earth and 1 AU is the distance between the Sun and Earth.

500

Which planet has a large storm called the "great red spot" that is visible in telescope images? 

Jupiter

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