Changes in Matter and Conservation

Multiple Select

Which of the following is a physical change?

• a precipitate forming

• water boiling on a stove

• an unexpected color change

• teeth grinding food

Multiple Choice

A chemical change rearranges its atoms to form a new substance.

• True

• False

Multiple Select

Select all examples of a chemical change.

• unexpected color change

• light emission (energy)

• precipitate formed

• odor production

Multiple Choice

Acid and enzymes digesting food in the stomach is what type of change?

• Physical

• Chemical

Multiple Choice

what is the name of the left side of a chemical equation?

• Products

• Reactants

• yield sign (arrow)

Multiple Choice

What is the name of the substances on the right side of the arrow?

• reactants

• products

Multiple Choice

What type of change is photosynthesis?

• physical

• chemical

Multiple Choice

When the same types of atoms and numbers are present in an equation, it is said to be-

• balanced

• unbalanced

Multiple Choice

Balanced equations are examples of what law?

• law of conservation of energy

• newton's first law

• law of conservation of mass

• newtons second law