Earth's Movements and Celestial Objects

Celestial object

• Any natural object outside Earth's atmosphere, such as the Moon, Sun, or stars.

• A man-made object orbiting the Earth, like a satellite.

• A type of meteorological phenomenon occurring in the atmosphere.

• A geological formation found on the surface of a planet.

Axis

• An imaginary line that Earth spins around, which runs from the North Pole to the South Pole.

• A physical line that divides the Earth into two equal halves.

• A type of geographical coordinate used for navigation.

• A celestial body that orbits around the Earth.

Circumpolar star

• A star that never sets below the horizon and is visible all night.

• A star that is only visible during the day.

• A star that changes position throughout the night.

• A star that is located at the equator.

Length of Earth's rotation

• 12 hours

• 24 hours

• 36 hours

• 48 hours

Length of Earth's revolution

• 365 days

• 364.25 days

• 365.25 days

• 366 days

Some constellations are visible year round because they are located near the celestial poles and are not affected by Earth's orbit.

• They are located near the celestial equator and are affected by Earth's orbit.

• They are located near the celestial poles and are not affected by Earth's orbit.

• They are located far from the celestial poles and are affected by Earth's orbit.

• They are located in the southern hemisphere and are visible only in winter.

Earth's movement throughout the day and year

• Earth rotates on its axis daily and revolves around the Sun yearly.

• Earth spins on its axis every 24 hours and orbits the Moon monthly.

• Earth moves in a circular path around the stars every year.

• Earth rotates around the Sun every 30 days and revolves on its axis weekly.

Rotation

• The spinning of Earth on its axis.

• The movement of Earth around the Sun.

• The change of seasons on Earth.

• The tilt of Earth's axis.

Revolution

• The movement of Earth around the Sun.

• The rotation of Earth on its axis.

• The orbit of the Moon around the Earth.

• The change of seasons on Earth.

Polaris

• A star located in the Southern Hemisphere

• Also known as the North Star, it is almost directly above the North Pole.

• A planet in our solar system

• A constellation in the night sky