What is the result of a chemical reaction?

• A physical change

• A chemical change

• No change

• A new element

Tags

NGSS.MS-PS1-2

In a chemical reaction, what are the atoms and molecules that interact with each other called?

• Products

• Reactants

• Catalysts

• Enzymes

What happens to the atoms in a chemical reaction?

• New atoms are created

• Atoms are destroyed

• Atoms rearrange and form new bonds

• Atoms disappear

Tags

NGSS.MS-PS1-5

What is a physical change?

• A change where a new substance is formed

• A change in the state of matter without forming a new substance

• A change that involves a chemical reaction

• A change that cannot be reversed

Tags

NGSS.MS-PS3-4

What happens to atoms and molecules during a physical change?

• They form new substances

• They speed up or slow down

• They disappear

• They change color

What is a chemical change?

• A change in color only

• A change where atoms rearrange to form new substances

• A change in temperature only

• A change in size only

Tags

NGSS.MS-PS1-5

In a chemical reaction, what are reactants?

• The substances that are formed

• The substances that interact to form new products

• The substances that disappear

• The substances that change color

Tags

NGSS.MS-PS1-2

What is an example of a chemical reaction?

• Melting ice

• Burning a candle

• Freezing water

• Boiling water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the reactants in the chemical reaction of a burning candle?

• Wax and nitrogen

• Wax and oxygen

• String and carbon dioxide

• String and water vapor

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens when a glass jar is placed over a lit candle?

• The flame gets brighter

• The flame goes out

• The flame changes color

• The flame splits into two

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4