Study Guide - Earth, Moon, and Sun Test

How Earth moves in space (pg 6-9)

How Earth moves in space (pg 6-9) b. Axis -

How Earth moves in space (pg 6-9) c. Day and night cycle - ________________________________

• Caused by Earth's rotation on its axis.

• Caused by Earth's revolution around the Sun.

• Caused by the Moon's shadow covering the Earth.

• Caused by changes in Earth's distance from the Sun.

How Earth moves in space

• The movement of Earth around the sun.

• The spinning of Earth on its axis.

• The movement of the sun around Earth.

• The tilting of Earth's axis.'

How Earth moves in space (pg 6-9) e. Shape of Earth’s orbit is nearly ________________________________

• circular (or elliptical, but nearly circular)

• triangular

• rectangular

• square

How Earth moves in space (pg 6-9) f. Year cycle -

• One complete revolution of Earth around the sun.

• One complete rotation of Earth on its axis.

• The time it takes for the moon to orbit Earth.

• The change from day to night.

How Earth moves in space

• A year with an extra day added to February (366 days total) to keep the calendar year synchronized with the astronomical year.

• A year with only 364 days to adjust for the lunar cycle.

• A year when two months are combined to shorten the calendar.

• A year that occurs every decade to mark a new century. atmosphere).

Seasons on Earth (pg 10-13) a. Direct sunlight (concentrated) - occurs ________________________________

• when the sun is higher in the sky, usually in summer or near the equator

• when the sun is lower in the sky, usually in winter or near the poles

• only during nighttime hours, regardless of location

• when the Earth is farthest from the Sun in its orbit

Indirect sunlight (diffuse, spread out) - occurs ________________________________

• when the sun is lower in the sky, usually in winter or farther from the equator

• when the sun is directly overhead at noon

• only during a solar eclipse

• when there are no clouds in the sky

Earth receives direct and indirect sunlight. Which of the following diagrams best shows this?

• A diagram showing sunlight hitting Earth directly at the equator and indirectly at the poles.

• A diagram showing sunlight hitting Earth equally at all locations.

• A diagram showing no sunlight reaching Earth.

• A diagram showing sunlight only at the poles.