Who Cares About pH??
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On a sheet of legal paper, neatly draw a rectangle that is 14” long and about 1/2” wide.
Use the ruler to divide the rectangle in half at the 7” mark and label this “NEUTRAL”
Write “ACIDS” neatly on the left side of the rectangle and lightly shade it a red color.
Write “BASES” neatly on the right side of the rectangle and lightly shade it a blue color.
Using the ruler, neatly divide your scale into 1” sections.
a. 0” = 0 pH
b. 1” = 1 pH
c. 2” = 2 pH etc…
d. The end of your strip (14”) should be labeled 14 pH
Put a bracket over pH = 0 & 1 and label this as “STRONG ACIDS”
Put a bracket over pH = 5 & 6 and label this as “WEAK ACIDS”
Put a bracket over pH = 13 & 14 and label this as “STRONG BASES”
Put a bracket over pH = 8 & 9 and label this as “WEAK BASES”
Neatly place the following products on your pH scale in the correct order. You can write above,
below, or on the rectangle.
a. Ammonia – pH 12
m. Lye – pH 14.0
b. Apple Juice – pH 3.5
n. Milk – pH 6.5
c. Banana – pH 5.3
o. Milk of Magnesia – pH 10.3
d. Blood – pH 7.4
p. Orange juice – pH 3.5
e. Bread – pH 5.5
q. Potato – pH 5.8
f. Coffee – pH 5.0
r. Sea water – pH 8.2
g. Cola – pH 3.0
s. Shampoo – pH 5.6
h. Dish soap – pH 9.5
t. Sodium hydroxide – pH 13.0
i. Eggs – pH 8.0
u. Stomach acid – pH 1.9
j. Hydrochloric acid – pH 1.0
v. Tap water – pH 7.0
k. Laundry detergent – pH 10.1
w. Tomato juice – pH 4.2
l. Lemon juice – pH 2.2
x. Vinegar – pH 2.4
11. After labeling all of the above on your chart, choose any 10 of them and draw/color them near
their label on the scale.
12. More than 10 would be great!
13. Draw a colorful border around your paper.
14. Put a creative title at the top (that makes sense for what you’ve just done).
15. On the back of your paper, list 5 properties of acids and 5 properties of bases.
16. Don’t forget your name.