Science toets leren

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Observing

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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

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

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