Chapter 6 Science

What is the definition of axis?

• A curved line around which a figure or object rotates or is symmetrically arranged.

• A point where two lines or surfaces meet.

• A line segment that joins two points on a curve.

• imaginary line around which an object spins

What is the definition of rotation?

• The definition of rotation is the action or process of spinning in a circle.

• The definition of rotation is the action or process of moving in a straight line.

• one whole spin of an object on its axis

• The definition of rotation is the action or process of expanding or contracting.

What is the definition of orbit?

• path an object takes as it revolves around a star, planet, or moon

• The orbit is the gravitational force exerted by a celestial body on an object.

• The orbit is the time it takes for an object to complete one revolution around a celestial body.

• The orbit is the distance between two celestial bodies.

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What is the definition of revolution?

• one full orbit around the sun

• A change that only affects a small part of a system or organization.

• A temporary disruption in a system or organization.

• A gradual and incremental change in a system or organization.

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What is the definition of solar flare?

• A gradual release of radiation from the Sun's surface.

• A burst of radiation from the Moon's surface.

• A sudden, intense burst of radiation from the Earth's surface.

• an explosive eruption of waves and particles into space

What is the definition of constellation?

• A group of planets that orbit around a star.

• A group of galaxies that are close together.

• A group of stars that forms a pattern in the sky.

• A group of comets that pass through the solar system.

What is the definition of planet?

• A planet is a celestial body that orbits around a star and is flat in shape.

• a large round object that orbits around a star and has cleared the region around its orbit

• A planet is a celestial body that orbits around a moon and is irregular in shape.

• A planet is a celestial body that orbits around a star and is cube-shaped.

What is the definition of inner planet?

• Planets made mostly of gas.

• Planets farthest from the Sun.

• Planets with rings around them.

• any of the 4 planets closest to the Sun

What is the definition of asteroid?

• A type of meteorite that falls to the ground.

• rocky mass up to several hundred kilometers wide that revolves around the sun

• A planet that is smaller than Earth.

• A large icy object that orbits the Earth.

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What is the definition of comet?

• A comet is a small planet that orbits the sun.

• A comet is a type of star that emits a tail of gas and dust.

• A comet is a meteorite that enters Earth's atmosphere and burns up.

• a frozen mass of different types of ice and dust orbiting the sun