Chemical and Physical Changes

Which is the best definition of a PHYSICAL CHANGE?

• something new is mad

• atoms & molecule rearrange

• it is the same substance before and after the change

• it is a different substance before and after the change

Tags

NGSS.MS-PS1-4

Which is a clue that a physical change has occurred?

• it's a new color

• the state of matter has changed

• it has a bad smell

• it gets smaller

Which of these is a physical change?

• ice cream melting

• a fire burns and ashes are created

• light is created when you bend a glow stick

• rust on a bicycle chain

Tags

NGSS.MS-PS1-4

Which of these is the best definition of a CHEMICAL CHANGE?

• it is the same substance before and after the change

• atoms and molecules do not rearrange into something new

• nothing new is created

• atoms and molecules rearrange to make a new substance

Tags

NGSS.MS-PS1-2

Which of these is a CHEMICAL change?

• getting a haircut

• baking a cake

• cracking an egg

• tearing up a sheet of paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is a chemical change?

• silver necklace tarnishing

• cutting the grass with a lawnmower

• putting m&m's and skittles in the same bowl together

• putting milk on cereal

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these is a physical change?

• sodium and chlorine combining to make salt

• hydrogen and oxygen combining to make water

• lighting a match

• freezing juice to eat like a popsicle

Tags

NGSS.MS-PS1-4

Choose all the examples of chemical changes.

• rust

• frying an egg

• baking a cake

• a car tire going flat

• a vase that gets broken

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Choose all the examples of physical changes.

• burning newspapers

• boiling water

• a candy bar melts in the sun

• rolling up snow to make a snowman

• rotting fruit

What kind of change results in a new substance with new properties?

• chemical change

• physical change

Tags

NGSS.MS-PS1-2