7.9A Celestial Objects 7th Grade Science Review

What is a comet?

• A celestial object made of ICE, dust, and rocky material that displays a visible atmosphere when close to the Sun.

• A large star that burns out and explodes in a supernova.

• A planet that orbits the Sun in a circular path.

• A type of asteroid that is primarily composed of metal.

What are the gas giants?

• Jupiter, Saturn, Uranus, and Neptune

• Earth, Mars, Venus, and Mercury

• Pluto, Eris, Haumea, and Makemake

• Sun, Moon, Earth, and Mars

What is the difference between a meteoroid, meteor, and meteorite?

• A meteoroid is a small rock in space, a meteor is a shooting star, and a meteorite is a rock that has fallen to Earth.

• A meteoroid is a light in the sky, a meteor is a rock in space, and a meteorite is a star that has fallen to Earth.

• A meteoroid is in space, a meteor is the light produced when it enters the atmosphere, and a meteorite is what lands on Earth.

• A meteoroid is a planet, a meteor is a comet, and a meteorite is a satellite.

What is the Kuiper Belt?

• A region of gas giants in our solar system

• A disk-shaped region beyond the gas giants made up of icy objects

• A collection of stars in the Milky Way

• A zone of asteroids located between Mars and Jupiter

Tags

NGSS.MS-ESS1-3

What is gravity?

• Gravity is the force that repels two bodies away from each other.

• Gravity is the force that attracts two bodies toward each other, depending on their masses and the distance between them.

• Gravity is the force that keeps objects stationary in space.

• Gravity is the force that causes objects to float in the air.

Tags

NGSS.MS-PS2-4

What is the significance of the Sun in our solar system?

• The Sun is the central star of our solar system, providing light and heat, and its gravitational pull keeps the planets in orbit.

• The Sun is a planet that orbits around the Earth and provides light during the day.

• The Sun is a distant star that has no impact on the solar system.

• The Sun is a source of water for the planets in our solar system.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

What is a moon?

• A celestial body that orbits a planet and reflects light from a star.

• A type of star that produces its own light.

• A planet that has rings around it.

• A large asteroid that orbits the Sun.

Tags

NGSS.MS-ESS1-1

What is mass?

• The weight of an object in a gravitational field.

• The amount of matter in an object, which does not change regardless of gravity.

• The volume of an object measured in cubic units.

• The density of an object calculated by its mass and volume.

What is an asteroid?

• A small rocky body that orbits the Sun, primarily found in the asteroid belt between Mars and Jupiter.

• A large gaseous planet located beyond Neptune.

• A comet made of ice and dust that travels through space.

• A satellite that orbits Earth and reflects sunlight.

Tags

NGSS.MS-ESS1-3

What is the Oort cloud?

• A dense region of stars in the Milky Way galaxy.

• A spherical cloud of icy objects surrounding our solar system, marking the outer boundary of the Sun's gravitational influence.

• A collection of asteroids located between Mars and Jupiter.

• A theoretical region of dark matter surrounding the universe.

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3