Space Unit Test Review

^{A space object made of ice, with a gas and dust tail}

• Asteroid

• Comet

• Meteroid

• Meteor

The energy from the sun is created by a process called:

• nuclear core

• nuclear fusion

• fate

The moon appears to change shape because of _____.

• the Moon's revolution around Earth
• the seasons of the year
• the movement of stars in they sky
• Earth's rotation on its axis

Why do planets orbit the sun (and not float around in space)?

• the moons are keeping them in place
• They were hit by an asteroid
• they were hit by a comet
• the sun's gravity keeps them in place

One of the main differences between the outer and inner planets is __________.

• The inner planets all have water
• the inner planets are much bigger than the outer planets
• the outer planets are gas planets
• the inner planets have rings, and the outer planets don't

When a meteor hits Earth, what is it called?

• meteorite
• meteroid
• meteor

Which of the following describes a Meteor?

• Found between Mars and Jupiter

• Orbit the sun like a planet

• Have an elliptical orbit of the sun

• Most burn up as they enter the atmosphere

Which of the following does a space suit provide protection against?

• Extreme temperatures

• Muscle loss

• Bone loss

• Excessive oxygen

What was the first artificial satellite launched into space?

• Apollo 11
• Sputnik 1
• Apollo 13
• Columbia

As a comet approaches the sun, solar wind shapes the comets tail -

• Toward the sun

• away from the sun