Earth in Space Review

Earth spinning on its axis is called its ___.

• orbit
• cycle
• rotation
• revolution

Which of the following events occurs once every 24 hours?

• The moon rotates on its axis.
• Earth rotates on its axis.
• The moon revolves around the Earth.
• Earth revolves around the sun.

When the North end of Earth's axis is tilted toward the sun, ___.

• it is winter in the Southern Hemisphere
• the sun is farthest south of the equator
• the sun is low in the sky in the Northern Hemisphere
• it is summer in the Southern Hemisphere

In a leap year, the number of days is ___.

• 365
• 365.25
• 364
• 366

Neap tides occur ___.

• only when the sun and moon are the same distance from Earth
• when the sun and moon are at right angles to Earth
• when day and night are equal
• when the sun, moon, and Earth line up

The two days on which the sun is overhead at either 23.5 degrees north or south are called ___.

• equinox
• solstice
• Neap Tide
• Spring Tide

A tide with the largest difference between low and high tides is called a ___.

• Spring tide
• Neap tide
• Solar eclipse
• Lunar eclipse

A solar eclipse occurs only when the moon is in the ___ phase.

• 1st quarter
• New Moon
• Full Moon
• 3rd quarter

In one year, Earth completes 365 ___.

• Revolutions
• Rotations
• Orbits

Each of the two days of the year when neither hemisphere is tilted toward the sun is known as a(n) ___.

• solistice
• equinox
• spring tide
• neap tide