7.9A, 7.9B, 7.9C 7th Grade Science Review

What is gravity?

• A force that repels two bodies away from each other.

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

• A type of energy that can be harnessed for power.

• A phenomenon that only occurs on Earth.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

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 phenomenon, a meteor is a rock in space, and a meteorite is a comet fragment.

• 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 star, and a meteorite is a satellite.

What is the difference between mass and weight?

• Mass is the force of gravity acting on an object, while weight is a measure of the amount of matter in an object.

• Mass is a measure of the amount of matter in an object, while weight is the force of gravity acting on that mass.

• Mass and weight are the same and can be used interchangeably.

• Weight is a measure of the volume of an object, while mass is the density of that object.

What is the Milky Way?

• A type of star

• A galaxy that contains our solar system, composed of billions of stars, gas, and dust.

• A planet in our solar system

• A black hole in the universe

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 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 mass divided by volume.

What is a meteor?

• A celestial body that orbits the sun

• A meteoroid that burns up upon entering the Earth's atmosphere, creating a bright streak of light.

• A type of star that emits light

• A planet that is no longer in orbit

What is a meteoroid?

• A large celestial body that orbits the sun

• A small rocky or metallic body in outer space, typically smaller than an asteroid

• A type of star that has exploded

• A planet that is not yet formed

What is the Kuiper Belt?

• A region of rocky planets in the inner solar system.

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

• A cluster of stars located near the Milky Way.

• A type of asteroid belt found between Mars and Jupiter.

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 energy that only affects the outer planets.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2