Frosted+Patterns

__ What You Need: __ · Washing Soda · Water · A mixing bowl · A sponge · A measuring cup · A spoon for stirring __ What You Do: __ 1. Put a cup of washing soda into a bowl. Look at the crystals and touch them. Discuss the crystals and describe them. 2. Pour one cup of hot water over the washing soda. 3. Stir the solution and draw what happens to the crystals. 4. Dip a sponge in the solution. Wipe it on the window pane. 5. Leave your solution on the window. After about 20 minutes, go and see what has happened on the window. This information was sourced from: Ministry of Education. (1998). //Making Sense of the Living World//.
 * FROSTED PATTERNS **
 * BIG IDEA **
 * A substance that dissolves in a liquid is said to be soluble in that liquid. A substance that does not dissolve in a liquid is said to be insoluble in that liquid. **
 * A physical change in which a solid dissolves to form a liquid solution is reversible. As water evaporates, the molecules of the solute may move closer together and link up to form crystals. **