To view this resource you need to have Flash Player installed.
If you're seeing this message on a mobile or tablet, your device probably doesn't support Flash.
All of our future games and resources will be tablet friendly!
See if you can which changes are reversible and irreversible by testing different materials such as ice, eggs, sand and salty water by heating and cooling.
Sign up for Newsletters
Follow us on Pinterest
Like us on Facebook
Follow us on Twitter
© 1998-2014 Topmarks Online Ltd. All rights reserved.