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12-12 Changes

Last updated about 2 years ago

2 questions

Required

1

Required

1

Question 1

1.

A cub grows into an adult bear.
This is an example of an irreversible change.

True

False

Question 2

2.

Select all of the changes that are reversible. You will choose 2 answers!

The burning of candle wax.

The melting of candle wax.

Baking cookie dough into cookies.

Mixing red and blue marbles in a bag.