When is Earth's axis tilted neither toward nor away from the sun? a. summer solstice b. winter solstice c. summer and winter solstices d. vernal and autumnal equinoxes

During which tide is there the greatest distance between high and low tides? a. Neap tides b. Spring tides c. Winter tides d. Rip tides

A solar eclipse occurs when ________. a. Earth is between the sun and the moon b. the sun is between Earth and the moon c. the moon is between Earth and the sun d. the sun is blocked by Earth

During which phase of the moon does a lunar eclipse occur? a. first quarter b. last quarter c. new d. full

Which phase takes place when the moon's surface is not visible? a. full moon b. quarter moon c. harvest moon d. new moon

The main cause of the seasons is _____. a. variations in the sun's energy b. the changing distance of Earth from the sun c. the changing speed of Earth's revolution d. Earth's axis is tilted

About how long does it take for the moon to revolve once around Earth? a. 7 days b. 14 days c. 28 days d. 365 days

Starting in January, the Northern hemisphere progresses from winter to spring, summer and fall. What is the sequence in the Southern hemisphere starting in January?

What is the movement of an object in space spinning on its axis? a. rotation b. revolution c. orbiting d. parallelism

Which statement is true about the moon's rotation? a. the moon revolves but does not rotate b. the moon rotates once per revolution c. the moon rotates but does not revolve d. the moon does not revolve or rotate

Which phase of the moon follows a waning crescent and comes before a waxing crescent? a. new moon b. full moon c. quarter moon d. harvest moon

Which season is it in the Southern Hemisphere when the sun's rays strike most directly? a. spring b. summer c. autumn d. winter

When is the sun directly overhead at the equator? a. summer solstice b. winter solstice c. summer and winter solstices d. vernal and autumnal equinoxes