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chemical/physical changes

Across
A chemical combination of two or more elements results in the formation of a _______.
These small units make up all forms of matter including living and non living things.
Physical changes are usually _______ so you can get back what you physically combined together.
A salt water ________ is an example of a homogeneous mixture.
Only one type of compound or element. (two words, no spaces)
We are the "lightweights" of an atom.
A snow globe is a
These are the purest forms of matter.
Colloids have _______-sized particles.
In chemical and physical changes, matter is _________ .
Down
A substance with two or more atoms bonded together in a cohesive unit.
The creation of a compound is a _______ change.
Melting ice is an example of a physical change that is generally known as a change in _______.
A general example of a physical change involving sugar and water.
The number at the bottom of a symbol representing an element is known as atomic _______.
A mixture that does not look or taste the same throughout.
In a chemical reaction, atoms are __________ but not created or destroyed.
Toasted bread or _______ milk are considered chemical changes.