6A - Reversible and Irreversible Changes

Select the answer that best describes a reversible change

• When a new substance is formed.

• A change which cannot be undone or reversed.

• When a change is made to a substance, but it can be changed back to its original state.

• All of the above.

Select the answer that best describes an irreversible change

• When a substance can be changed back or reversed.

• When a substance is changed, and it cannot be changed back.

• When a new substance is formed.

• All of the above.

Tags

NGSS.MS-PS1-2

Ice to water is an example of..

• Reversible Change

• Irreversible Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Burning a piece of paper is an example of...

• Reversible Change

• Irreversible Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Melting wax is an example of...

• Reversible Chnage

• Irreversible Change

Tags

NGSS.MS-PS1-4

Melting chocolate is an example of...

• Reversible Change

• Irreversible Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Burning toast is an example of...

• Reversible Change

• Irreversible Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• A puddle turns to ice on a very cold winter's day

• A bicycle left out in the rain begins to rust

Tags

NGSS.MS-PS1-4

Which of the following is an example of an irreversible change?

• A log of wood has been burned on the fire

• A fruit smoothie has been frozen

• A bar of chocolate has been left in the sunshine and has melted

Tags

NGSS.MS-PS1-2

Which of the following is a sign of an irreversible change taking place?

• A change in colour

• A sudden change in temperature

• Vigorous bubbling

• All of the above

Tags

NGSS.MS-PS1-2