• 5 fl. oz. Elmer’s Translucent Color Glue
• ½ tbsp. baking soda
• 1 tbsp. contact lens solution
• Mixing utensils
• Measuring spoons
• Cotton balls
• Kinetic Sand®
Kinetic Sand® is a registered trademark of Spin Master Ltd.
Pour the entire bottle of Elmer’s® Translucent Color Glue into the
Add ½ tbsp. of baking soda and mix thoroughly. Add 1 tbsp. of
contact lens solution and mix until solution gets thick and slime
begins to form.
Take out the slime and begin kneading it with both hands. If
needed, add another ¼ tbsp. of contact lens solution to make the
slime less sticky.
Now put on your lab jackets, and let’s get science-y. Divide your
slime into three sections of equal size.
Ask students questions: What do you think will happen to your slime
if you add cornstarch, sand, or cotton to it? Have them write out a
hypothesis. Then have them add cotton balls to one ball of slime,
Kinetic Sand® to another, and cornstarch to the third.
Were the hypotheses correct? Why or why not? Have each student or
group of students report their findings to the class.
*Adult supervision is required; this project is not appropriate for
children under the age of 3 years. Thoroughly wash your hands before and
after making and playing with slime. Warning: If large quantities of
contact lens solution are accidentally ingested (greater than a
tablespoon), get medical attention immediately.
*Some contact solution brands work better than others, check out our
Slime Tips section for all the details