SFS5#C4
Terms
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- elliptical
- oval-shaped, like a flattened circle
- model
- a representation of how something looks or works
- asteroid
- a rocky object that revolves around the sun
- meteoroid
- a small piece of rock or metal that travels in space around the sun
- meteor
- a bright streak of light that passes through Earth's atmosphere
- comet
- a ball of ice, dust, and gases that travels through space and orbits the sun
- meteorite
- a piece of a meteoroid that lands on Earth after passing through the atmosphere
- light year
- the distance light travels in one year
- constellation
- stars that appear to be in groups when viewwed from Earth
- galaxy
- a group of billions of stars, dust, and gases in space held together by gravity
- refraction
- the bending of light as it passes from one material to another; a way to gather and focus light
- reflection
- the bouncing of light off a surface; a way to gather and focus light
- spectroscope
- an instrument that separates light into a pattern of lines of different colors