Exploring Physical and Chemical Changes

What are the two types of changes that matter undergoes?

• Physical and Biological

• Physical and Chemical

• Chemical and Biological

• Biological and Molecular

Tags

NGSS.MS-PS1-5

Which of the following is an example of a physical change?

• Burning wood

• Rusting iron

• Cooking an egg

• Melting ice

What happens to the molecules during a physical change?

• They break down into atoms

• They remain the same

• They rearrange to form a new substance

• They combine with other molecules

Tags

NGSS.MS-PS1-4

Which of the following is a physical change in the digestive system?

• Producing enzymes

• Absorbing nutrients

• Digesting food

• Chewing food

What is a key indicator that a chemical change has occurred?

• Formation of a new substance

• Change in state

• Change in size

• Change in shape

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT a reliable indicator of a chemical change?

• Change in temperature

• Formation of a precipitate

• Color change

• Production of gas

Tags

NGSS.MS-PS1-2

What does the formation of a precipitate indicate?

• A chemical change

• A change in size

• A change in state

• A physical change

Tags

NGSS.MS-PS1-2

Which of the following is an example of a chemical change?

• Dissolving sugar in water

• Melting ice

• Tearing paper

• Burning wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens to the molecular structure during a chemical change?

• It breaks down into atoms

• It rearranges to form a new substance

• It remains the same

• It combines with other molecules

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the main difference between physical and chemical changes?

• Physical changes alter the molecular structure

• Chemical changes alter the molecular structure

• Chemical changes only change the appearance

• Physical changes create new substances

Tags

NGSS.MS-PS1-4