Leave the jar in a cool place. As the water cools, salt crystals grow on the wool. Each day, pour the water way. Add a fresh batch full of dissolved salt. Day by day , the crystals on the string get bigger.
Students complete the daily log documenting the growth and change of the crystals.
Indicating the changes in shape, size, color and other observations. After a week, the groups will compare the crystals. Students will draw the crystal formations. Culminating Activity Field Trip and Picnic at the River. Students will gather three rocks of different shapes and sizes.