1. Tear a cabbage leaf into very small pieces and place in each
of the 6 cups. Label each cup 1 through 6. 2. Add very warm
water (BE CAREFUL!) to just barely cover the leaves. 3. Stir and
chop leaves with spoons to release plant pigment (chemical which
gives leaves the purple color) into the water. 4. Remove cabbage
leaves from cups with the spoons and throw the leaves away. 5.
Try not to touch the cabbage juice with your hands. Be sure to
save the cabbage juice in each of the 6 cups. 6. Add lemon juice
to cup #1. What happens? Record your observations. 7. Add baking
soda to cup #2. What happens? Record your observations. 8. Add
window cleaner to cup #3. What happens? Record your
observations. 9. Add clear soda to cup #4. What happens? Record
your observations. 10. Add vinegar to cup #5. What happens?
Record your observations. 11. Add laundry detergent to cup #6.
What happens? Record your observations. The cabbage juice
extract contains chemicals, called indicators that change color
depending on how acidic o