Chemical vs Chemical Changes

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

Is hammering wood together to build a house a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

A change in the size, shape, or state of matter.

• chemical change
• physical change
• chemical reaction
• electron change

Tags

NGSS.MS-PS1-4

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT a physical property?

• breaking a window
• color
• denisty
• freezing point

Is Gatorade powder dissolving in water physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Which of the following is a reactant

• CH₄
• H₂O
• CO₂
• 2H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The Law of Conservation of Mass tells us matter can't  ______________.

• change color
• change state of matter
• be created or destroyed
• change temperature

Tags

NGSS.MS-PS1-5

In a chemical reaction, how do the reactants compare to the products?

• They are the same
• They are different

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• sour milk
• burning wood
• breaking a pencil
• rust

Tags

NGSS.MS-PS1-2