10 points! and brainliest!
word bank:
buffer, chemical bond, chemical reaction, crystalline, ionic bond, matter, polar molecule, radioactive

anything that has mass and takes up space is

The answer is matter.

Anything that has mass and takes up space is matter.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.