An object that orbits a star , is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.

A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.

A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.

A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.

A pattern or grouping of stars that people imagine to represent a figure of object.

An imaginary line that passes through the planets center north and south poles.

The spinning motion of a planet on its axis.

The movement of an object around another object.

The path of and object as it revolves around another object in space.

A system of organizing time that defines the beginning, length, and divisions of a year.

Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator.

Either of the two days of the year on which neither hemisphere is tilted towards or away from the sun.

A push or pull exerted on an object.

The attractive force between objects

law of universal gravitation

The scientific law that states that every object in the universe attracts every other objects

The amount of matter in an object.

A measure of the force of gravity on an object.

The tendency of an object to resist a change in motion.

Newton's first law of motion

The law that if an object at rest will stay at rest and a object in motion will stay in motion.

One of the different apparent shapes of the moon as seen from Earth.

The partial of total blocking of one object in space by another.

The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.

The part of a shadow surrounding the darkest part.

The blocking of sunlight to the moon that occurs when earth is directly between the sun and the moon.

The periodic rise and fall of the level of water in the ocean.

The tide with the greatest differences between consecutive low and high tides.

The tide with the least difference between consecutive low and high tides,

Dark, flat areas on the moon surfaces formed from huge ancient lava flows.

A large round pit caused by the impact of a meteoroid.

A chunk of rock or dust in space.

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Chapter 1 the earth

Lessons 1-6

Question	Answer
Satellite	An object that orbits a planet
Planet	An object that orbits a star , is large enough to have become rounded by its own gravity, and has cleared the area of its orbit.
meteor	A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
comet	A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
star	A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
constellation	A pattern or grouping of stars that people imagine to represent a figure of object.
axis	An imaginary line that passes through the planets center north and south poles.
rotation	The spinning motion of a planet on its axis.
revolution	The movement of an object around another object.
orbit	The path of and object as it revolves around another object in space.
calendar	A system of organizing time that defines the beginning, length, and divisions of a year.
solstice	Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator.
equinox	Either of the two days of the year on which neither hemisphere is tilted towards or away from the sun.
force	A push or pull exerted on an object.
gravity	The attractive force between objects
law of universal gravitation	The scientific law that states that every object in the universe attracts every other objects
mass	The amount of matter in an object.
weight	A measure of the force of gravity on an object.
intertia	The tendency of an object to resist a change in motion.
Newton's first law of motion	The law that if an object at rest will stay at rest and a object in motion will stay in motion.
phase	One of the different apparent shapes of the moon as seen from Earth.
eclipse	The partial of total blocking of one object in space by another.
solar eclipse	The blocking of sunlight to Earth that occurs when the moon is directly between the sun and Earth.
umbra	The darkest part of a shadow.
penumbra	The part of a shadow surrounding the darkest part.
lunar eclipse	The blocking of sunlight to the moon that occurs when earth is directly between the sun and the moon.
tide	The periodic rise and fall of the level of water in the ocean.
spring tide	The tide with the greatest differences between consecutive low and high tides.
neap tide	The tide with the least difference between consecutive low and high tides,
maria	Dark, flat areas on the moon surfaces formed from huge ancient lava flows.
crater	A large round pit caused by the impact of a meteoroid.
meteoroid	A chunk of rock or dust in space.

Created by: user-1975075

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