Reversible and irrversible change

Which materials are not reversible?

• Ice

• Chocolate

• Paper

• Wax

Which materials are not irreversible?

• Milk

• Chocolate

• Paper

• Egg

What happens when salt is added to water?

• It dissolves in water to form a solution.

• It becomes Irreversible.

• It will make a bad explosion.

Can butter be reversible?

• True

• False

Other materials change much more when you heat them,is this a reversible or irreversible change?

• This is a reversible change.

• This is a irreversible change.

• None of them

Draw a material that is reversible

What is an example of a reversible change.

• Inflation of a ballon

• Baking a cake

• Burning a candle

• Melting of wax

What is an example of an irreversible change.

• Stretching of a rubber band

• Heating of butter

• Baking a cake

• Folding a paper

Draw a irreversible material.

Can chocolate be reversible if heated GENTLY?

• False

• True