Science SO
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19 Terms
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Observing
noticing something by using your senses
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Substance
anything that has mass and takes up space
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Matter
anything that has mass and takes up space
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Properties of a substance
unique characteristics of a substance
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Density
how much matter is packed into a given area
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Particle
a small piece of matter
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Sound
energy that is created by vibrations
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Sound frequency
the measure of the speed of the vibrations
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Pitch
the highness or lowness of a sound, caused by frequency
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Wavelength
the distance between one full wave
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Amplitude
the height of a wave
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Light
a form of energy that travels in waves
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Visible spectrum
all colors of light seen with the naked eye
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Reflect
to bend back light or heat
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Absorb
to soak up or take in
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Atom
smallest particle of a substance that still has the characteristics of the substance
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Molecule
a particle that is made up of atoms
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Photosynthesis
the production of glucose and oxygen by plants
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Organism
a living thing
Note 
Flashcards (225)