Physical & Chemical Changes in Matter

Categorize

Options (4)

mixing Baking Soda & Vinegar

Glass cup shatters

Paper lit on fire leaving ashes

Filling a balloon with hot air

Organize these options into the correct categories

Chemical change

Physical change

Categorize

Options (4)

Organize which are evidence of chemical changes of physical changes.

Physical Change

Chemical Change

Categorize

Options (4)

Baking a cake

Freezing water

Plant using photosynthesis

Dog ripping up your homework

Organize these options into the correct categories

Chemical changes

Physical changes

Dropdown

In

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​ changes, the particles that make up two or more substances rearrange to form a ​

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substance.

Multiple Choice

When water boils and turns into steam, what type of change is occurring?

• A chemical change because the water is becoming a gas.

• A chemical change because bubbles are being formed and steam is escaping as a gas.

• A physical change, the water molecules are still H₂O, just in a different state.

• A physical change because heat is being added to the water.

Multiple Choice

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

• Melting ice

• Burnt wood

• Breaking glass

• Dissolving sugar in water

Multiple Choice

Which of the following is NOT an example of a chemical change?

• Rust forming on a bicycle

• Effervescent tablets reacting with water

• Wood burning

• Ice melting

Multiple Select

Which of the following are signs that a chemical change has occurred?

• Odor production

• Change in temperature

• Change in shape

• Formation of a new substance

Multiple Choice

What is an example of an endothermic chemical change?

• Wood burning

• Rust forming on a bicycle

• Cold pack in a first aid kit

• Fireworks exploding

Multiple Choice

Which of the following is an example of a chemical change involving a change in color?

• Leaves turning red in autumn

• Melting ice

• Breaking a glass

• Dissolving sugar in water

Multiple Choice

Which of the following is NOT an example of a chemical change involving a change in color?

• Leaves changing color in the autumn

• Fruit ripening and changing color

• Dyeing your hair

• Melting ice

Open Ended

Explain how the formation of bubbles can indicate a chemical change. Give an example where bubbles do not indicate a chemical change.

Open Ended

Reflecting on what you have learned, how would you explain the importance of distinguishing between physical and chemical changes in everyday life?

Multiple Choice

Rust forms on a metal gate.

• Physical change

• Chemical change

Multiple Choice

During photosynthesis, a plant uses CO₂ and H₂O to make glucose (C₆H₁₂O₆) and O₂.

• Physical change

• Chemical change

Open Ended

Reflecting on what you learned about physical changes, can you think of another example from your daily life where a physical change occurs? Explain why it is a physical change.

Multiple Choice

An unusual odor is formed after combining two substances.

• Physical change

• Chemical change

Multiple Choice

What is the main difference between a physical change and a chemical change?

• A physical change affects only the physical properties, while a chemical change creates new substances.

• A physical change creates new substances, while a chemical change only affects physical properties.

• Both physical and chemical changes create new substances.

• Physical changes cannot be undone, but chemical changes can.

Multiple Choice

Opening and shaking a hand warmer packet makes it heat up.

• Physical change

• Chemical change

Multiple Choice

You split logs into pieces with an axe before burning them.

• Physical change

• Chemical change

Multiple Choice

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

• Melting butter on the counter

• Burning wood

• Rusting iron

• Baking a cake

Multiple Choice

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

• Melting ice into water

• Burning wood to ash

• Rusting of iron

• Baking a cake

Multiple Choice

Which of the following is the BEST description of a physical change?

• A change that creates a new substance with different properties.

• A change in the appearance of a substance that does not alter its chemical makeup.

• A change that always involves a release of energy like heat or light.

• A change where particles rearrange to form entirely new molecules.

Multiple Choice

The melting of ice in lemonade is an example of a physical change because:

• The lemonade becomes sweeter as the ice melts.

• The solid ice changes its shape and becomes liquid water, but it is still H₂O.

• The ice absorbs heat from the lemonade, causing a chemical reaction.

• Bubbles are formed as the ice melts, indicating a new gas is produced.

Multiple Choice

Which of the following observations indicates that the burning of wood in a campfire is a chemical change?

• The wood is broken down into smaller pieces as it burns.

• The shape of the wood logs changes as they are consumed by the fire.

• The wood releases smoke (a gas), light, and heat, and turns into ash.

• The wood changes from a solid to a liquid before turning into ash.

Multiple Choice

The formation of rust on an iron nail is a chemical change because:

• The nail becomes smoother and shinier over time.

• The iron metal reacts with air and moisture forming a new substance with a different color and texture.

• The nail simply changes its size as expands as it is exposed to the environment.

• The process can be easily reversed by wiping the nail with a dry cloth.

Multiple Choice

Which of the following is a characteristic of a physical change?

• It affects the internal structure of matter.

• The matter is still the same after the change.

• The change is irreversible.

• A new substance is always formed.