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Law of Conservation Crossword Puzzle

Across
Julius Robert Mayer discovered the Law of Conservation of _______. Starts with an E.
A number of chemicals formula that tells the number of atoms in a molecule or the ratio of elements in a compound. Starts with an S.
A chemical equation with the same number of atoms of each element on both sides of the equation. Two words (the space has been taken out). Starts with B. Second word starts with an E.
A chemical substance that is present at the start of a chemical reaction. Starts with an R.
Production of a certain amount. Starts with a Y.
_____ stays the same no matter what the gravity is. Starts with an M.
Down
Burning gasoline to power cars in an energy ___________ process we rely on. Starts with a C.
Energy cannot be created or __________. Starts with a D.
_______ changes depending on the gravity. Starts with a W.
Energy can change from one _____ into another. Starts with an F.
The Moon's gravity is about 1/6 less than ______'s gravity. Starts with an E.
A substance that initiates or accelerates a chemical reaction without itself being affected. Starts with a C.