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Unit 7 - The Solar System

Horizontales
Lighter and wider shadow
darkest shadow
the force of attraction between objects, such as the attraction between Earth and objects on it
to turn about an axis
the study of objects in space and their properties
a star and all of the planets and other bodies that revolve around it
pieces of rock that break off of asteroids and travel through space
an event during a full moon where the shadow of earth falls on the moon causing the moon to darken
a chunk of frozen gases, rock, ice, and dust
a group of stars that seems to form a picture or design in the sky
a chunk of rock or iron that orbits the sun
a group of billions of stars, objects that orbit those stars, gas, and dust
Mercury, Venus, Earth, Mars. Very dense and rocky, thin atmospheres, large solid cores, few moons and short revolution times
Jupiter, Saturn, Neptune, Uranus. also called the gas giants, made up of mostly gases, no solid surface, and very small cores, they have many moons and ring systems.
a change in the appearance of the moon's shape as it orbits Earth
Verticales
meteroids that reach Earth's surface
the path of one object in space around another object
a huge ball of very hot, glowing gases in space that produces its own light and heat
gravity pulls galaxies toward each other and collide in space Penumbra, lighter and wider shadow
an event during a new moon where the shadow of the moon falls on Earth blocking the sun's light
short-term changes in climate. They happen because different parts of Earth get different amounts of sunlight throughout the year.
to go around, or orbit, another object
a nearly round body that is slightly smaller than a planet, whose orbit crosses the orbit of another body
a large round body that revolves around a star
meteroids that burn up and cause a streak of light
everything that exists, including galaxies and everything in them
the imaginary line around which Earth rotates