Other Objects in Space

When comets come close to the Sun, they develop a tail that glows so we can see it from Earth. Asteroids do not develop tails like this. In what other way are asteroids different from comets?

• Asteroids orbit planets while comets orbit the Sun
• Asteroids are rocky while comets are balls of ice and dust
• Asteroids orbit outside of the Solar System while comets do not
• Asteroids are smooth and round while comets are lumpy shapes

Which of these can be found on both Earth and the moon?

• hills
• thick atmosphere
• thunderstorms
• oceans

What is found between the inner planets and the outer planets?

• asteroids
• comets
• air
• moons

Why can we see the moon at night?

• It burns hot gases like a star
• The moon reflects light from the Earth
• The moon reflects the light from the Sun
• The moon blocks the light from the Sun causing it to glow

Tags

NGSS.MS-ESS1-1

As you look outside your window, you notice that the moon is full. How long will it be before you see another full moon?

• two weeks

• a month

• two months

• a year

Tags

NGSS.MS-ESS1-1

Which of the following statements correctly describes what happens during one Earth day?

• The Earth moves in one complete circle around the Sun

• The Earth moves towards the Sun and then away from it

• The Earth moves upwards away from the Sun, and then downwards back towards the Sun

• The Earth slowly spins one complete time about its axis

Tarzan knows that Earth rotates on its axis. What evidence indicates Earth is rotating on its axis?

• There is a day and a night
• There are 365 days in a year
• There are four different phases of the moon
• There are different season of the year

Comets and asteroids both crash into planets or their moons sometimes. In what other ways are comets and asteroids similar?

• They both have a smooth, round shape
• They are both found in orbit around the Sun
• They both develop glowing tails near the Sun
• They are both made of ice and rock particles

A comet's tail can be millions of kilometers long as it gets closer to the Sun. What is another interesting fact about a comet's tail?

• It curls like a cat.

• It always faces towards the Sun.

• It always faces away from the Sun.

• It has a furry tail.

Which of these strikes the Earth?

• comet

• meteor

• meteoroid

• meteorite