Chemical and Physical Change

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a chemical change?

• Forming a new substance

• When two or more substances combine to make a greater one

• When two or more substances combine to make a new chemical substance

• Combing substances

Tags

NGSS.MS-PS1-2

What is a physical change?

• I Don't care!

• A change in the form or appearance of a substance

• a change in a substance to something new

• molecules interacting and changing into a new substance

Tags

NGSS.MS-PS1-4

Which of the following are examples of a Chemical Change? (Select all that apply)

• Iron Rusting

• Gas Burning

• Breaking a glass

• Boiling water

• Burning Wood

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Select the properties of a physical change. (Select all that apply)

• Color

• Shape

• Size

• Bubbles

• Temperature

Tags

NGSS.MS-PS1-2

Which is an example of a chemical change?

• Cutting paper

• Digesting Food

• Crumbling paper

• Boiling water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-LS1-7

Which is an example of a physical change?

• Cooking

• Buring Wood

• Ripping paper

• Digesting Food

When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change?

• The ice melting is a chemical change because the water changes form.
• The ice melting is a physical change because the water may be frozen again.
• The water and coffee mixing is a chemical change because the liquids change color.
• The water and coffee mixing is a physical change because the mixture forms bubbles.

Tags

NGSS.MS-PS1-2

Which statement best describes why baking a cake is an example of a chemical change?

• The process takes place in an oven.
• The process requires heat energy.
• The process cannot be reversed.
• The process can be repeated.

Tags

NGSS.MS-PS1-2

NGSS.MS-LS1-7

NGSS.MS-PS1-4

When two substances are combined and create their own heat and light, this is a _______ change.

• chemical

• physical

Tags

NGSS.MS-PS1-2