Earth's revolution & rotation

How many degrees is the Earth's axis tilted?

• 24

• 23.5

• 23

• 22.5

Answer explanation

The Earth's radius is 6370 kilometers (about 3980 miles). The sun's radius is about 100 times greater.

What does the Earth's rotation give us?

• year

• month

• week

• day

Answer explanation

The average distance from Earth to the sun is about 149 million kilometers (about 93 million miles).

How many degrees does the Earth rotate every hour?

• 15

• 23.5

• 25

• 90

Answer explanation

The distance from Earth to the sun varies from about 147 million km to about 152 million km

How many degrees does the Earth rotate every 24 hours?

• 90

• 180

• 360

• 0

Answer explanation

During the course of a day, any particular location will move in a circle coinciding with its latitude circle.

How many time zones are on the Earth?

• 9

• 18

• 24

• 36

Answer explanation

The local time of day (defined in terms of the position of the sun in the sky) is the same everywhere along a longitude line.

What does the Earth revolve around?

• sun

• moon

• planets

• galaxy

Answer explanation

Earth happens to orbit the sun within the so-called "Goldilocks zone," where temperatures are just right to maintain liquid water on our planet's surface.

Tags

NGSS.MS-ESS1-2

Describe the years a planet experiences based on its proximity [distance] to the sun.

• closer planets have more years

• all planets have the same number of years as the Earth

• closer planets have shorter years

• closer planets do not experience years

Answer explanation

Our planet is a bit closer to the sun in early January and farther away in July, although this proximity has a much smaller effect on the temperatures we experience on the planet's surface than does the tilt of Earth's axis.

Why does the Earth experience climate changes?

• revolution around sun

• rotation around axis

• sun is closer to Earth

• rotation and revolution

Answer explanation

Earth is the third planet from the sun in our solar system. Its name comes from the the old English and Germanic words meaning ‘the ground’.

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

True or False: When it is summer in the Northern Hemisphere it is winter in the Southern Hemisphere

• True

• False

Answer explanation

Like all the planets, Earth orbits (travels around) around the sun. And it does so at some serious speed –– around 30 kilometres per second.

Tags

NGSS.MS-ESS1-1

What direction does the Earth rotate?

• clockwise

• counterclockwise

Answer explanation

As the planet rotates, the side facing the sun receives daylight and the the other is in darkness.

Tags

NGSS.MS-ESS2-6