Designate one person in each group as a supply person. This activity has been developed for small groups of students. Limit the number in each group to no more than 8. Have students pour the contents of the resealable plastic sandwich bag into the cup. Ask students what they think will happen if they pour 30 mL of water into their group s aquifer cup model.
Record responses on the chalkboard.
Have students pour 30 mL of water into their group s aquifer cup model and observe what happens. Compare the actual results to what the students guessed. Have students pour an additional 30 mL of water into their aquifer. Inform the students that they have created an aquifer. Discuss the concept of saturation .