Silly Putty

You Will Need:

Water
Elmer's Glue
Borax (in laundry section of store)
Food Coloring
Disposable Spoons and Cups
Measuring devices

Directions:

  1. Fill a 6-8 oz. Styrofoam cup with approximately a of an inch of Elmer's glue
  2. Use a graduated cylinder and measure out 10 mL of water and add it to the glue
  3. Stir well
  4. Add 1-2 drops of food coloring to glue/water mixture
  5. Using a graduated cylinder, measure 5 mL of sodium borate solution. Add to glue mixture and stir well*
  6. Take mixture out of cup and knead with hands
  7. Store silly putty in plastic bag

*If mixture is still very runny after step 5, add just a few more drops of the borate solution.

Borate Solution:

Mix 2 tbsp of borax and 236 ml of warm water (~1 cup)

Conversions:
1 tbsp = ~15 ml
1 tsp = ~5 ml