Earth's Rotation and Revolution

Every living thing on Earth needs the Sun for energy.

• True

• False

• Sometimes

• Only plants

Why do we have a Leap Year every 4 years?

• To adjust for the extra ¼ of a day at the end of each year.

• To align the calendar with the lunar cycle.

• To account for seasonal changes in weather patterns.

• To synchronize with the Earth's rotation speed.

What is the source of all energy on Earth?

• the moon

• the sun

• volcanic activity

• ocean currents

The Earth spins on an imaginary line that runs through the North & South Poles, this line is known as the ______.

• equator

• axis

• diameter

• radius

What are the Tropics?

• an area that receives direct sunlight all year long.

• a region characterized by cold temperatures and snow.

• a zone with seasonal rainfall and dry periods.

• a place where the sun never sets.

Explain the difference between revolution and rotation.

• Revolution is the spinning of an object on its axis, while rotation is one complete trip around the Sun.

• Revolution is one complete trip around the Sun, while rotation spins on its axis.

• Revolution refers to the movement of an object in a circular path around another object, while rotation refers to the movement of an object around its own center.

• Revolution and rotation are the same, both referring to the movement of an object around another object.

The Earth is permanently tilted at _______ degrees.

• 22.5

• 23.5

• 24.5

• 25.5

How long does it take the Earth to make 1 revolution?

• 365 days

• 364 days

• 365 ¼ days

• 366 days

What causes the Seasons?

• tilt of the Earth

• distance from the Sun

• rotation of the Earth

• changes in atmospheric pressure

Why do the Northern and Southern Hemispheres have opposite seasons?

• Because of the tilt of the Earth, one hemisphere receives direct sunlight while the other receives indirect sunlight.

• Due to the distance from the sun, which varies between the two hemispheres.

• Because of ocean currents that affect temperature differently in each hemisphere.

• Due to the rotation of the Earth, which causes seasonal changes in both hemispheres.