Science Language and Vocabulary ASTRONOMY. axis of rotation The spinning of objects around an...

Science Language and Vocabulary

ASTRONOMY

axis of rotation

• The spinning of objects around an imaginary center line

• The path a planet or moon takes during its revolution

phases of the moon

• the different shapes of the moon during a lunar cycle

reflection

• the process of bouncing off

revolution

• the circling of an object in space around another object in space

Earth’s axis of rotation

• imaginary poles on which the Earth spins

Earth’s tilt

• 23.5° angle

asteroids

• irregular pieces of rock that move through space

celestial objects

• all of the different objects in space that make up our universe

comets

• celestial objects made up of dust, ice, and gases that orbit the sun in

a large, elliptical course

distance

• the measure of the amount of space between objects

gravitational pull

• the measurement of the pull of gravity

gravity

• the attraction of one mass to another

• the amount of matter in something

meteor

• one of the small particles of matter in the solar system that is visible

when it falls into Earth’s atmosphere

planet

• a celestial object, larger than asteroids or comets, that revolves around a star without giving off its

own light

satellite

• a natural or man made object that revolves around larger objects in

• objects compared to a standard for accurate size perception

solar system

• the system made up of the eight unique planet, and many smaller

objects that orbit the sun

• celestial objects that consist of gases which generate light and

• the star that is the basis of the solar system and sustains life on Earth as the source of heat and

telescope

• an instrument that magnifies or makes distant objects appear

larger

constellation

• a pattern in the stars that has been identified and named

galaxy

• a group of millions of stars held together by gravity

light-years

• the distance light can travel in one year

Milky Way Galaxy

• a group of about 200 billion stars formed in a disk shaped spiral that

contains our solar system

speed of light

• 186,000 miles per second or 300,000 kilometers per second

universe

• the space that consists of all matter and all light and other forms of

radiation and energy

Science Language and Vocabulary ASTRONOMY. axis of rotation The spinning of objects around an...

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Transcript of Science Language and Vocabulary ASTRONOMY. axis of rotation The spinning of objects around an...

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