Science toets leren
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18 Terms
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Observing
Noticing something by using your senses
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Substance/matter
Anything that has mass and takes up space
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Properties of a
substance
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 (88)