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PS5 Crossword Puzzle

Across
The word thermic means...
This type of chemical reaction releases heat energy to produce a change.
This type of chemical reaction absorbs heat energy from the surrounding area to produce a change.
When the nucleus of an atom is split into two nuclei.
The measure of how much matter is in an object.
Down
Baking cookies is an example of what type of chemical reaction?
Roasting marshmallows is an example of what type of change?
Nuclear energy is stored in what part of the atom?
Ice cream melting is an example of what type of change?
This occurs when two smaller nuclei fuse together.