An imaginary axle that a planet spins on

• horizon
• axis
• the tilt of the planet
• altitude

The day and night cycle on Earth is caused by

• Earth's tilted axis
• Earth's orbit around the Sun
• Earth's rotation on its axis
• Earth's distance from the Sun

What information should you record each day to observe the Moon for patterns and changes over time?

• Date and time
• Date, time, location in the sky
• Date, time, appearance (a drawing), location in the sky
• Date, time, appearance (a drawing), location in the sky, anything that prevented you from being able to see the moon

The Moon can be seen from Earth

• Only when it is night
• Only when it is day
• Sometimes at night and sometimes during the day
• Only after the Sun has set

The distance above Earth's surface is ____?

• Altitude
• Line of sight
• Horizon
• Point of view

The position from which an observation is made is a ______.

• Altitude

• Line of sight

• Horizon

• Point of view

A place where the sky and Earth's surface appear to meet is the _______.

• Axis
• Line of sight
• Horizon
• Point of view

What is rotation?

• Turning/Spinning like a top
• The amount of time it takes to go around the Sun.
• Going around another object
• The same as orbit

What is revolution?

• Traveling around something
• Day/night cycle
• Spinning like a top
• Turning on an axis.

The path and length of time it takes a planet to go around the Sun is its

• axle
• orbit
• elevation
• rotation