Which of the following is a physical change

Which of the following is a chemical change

Which is a sign that a chemical change has occurred

Which of the following is a chemical change?

Which of the following is NOT a sign of chemical change

Which must always be true for a chemical change?

Which of the following is a physical change

Which of the following is a chemical change

Cutting paper is a

Production of gas is a

A reaction becoming cooler is a

Styrofoam dissolving in Acetone

Cracking a glow stick is a

Smelling burnt toast is a

Fireworks explosion is a

A nail file can change the shape of a fingernail

Bubbles form and there's a change in smell

Using sandpaper on a piece of wood to smooth it out

A material that eats away another metal

Chewing food is

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