• 1/4 Cup Liquid Starch

• 1/4 Cup Elmer’s Glue

• 2 Tablespoons of Glow-In-The-Dark Pigment

• 1 Bowl

• 1 Bright Flash Light


STEP 1: Mix the liquid starch and glow-in-the-dark-pigment in the bowl. Add the Elmer’s glue and mix. Describe and classify the liquid starch and glue by its observable properties.

STEP 2: Remove the glow slime from the bowl, continue to mix the slime with your hands. Is the glow slime a solid or a liquid? Explain how the glow slime could be used as a model to describe that matter is made of particles too small to be seen.

STEP 3: Hold the bright flash light close to the glow slime, turn off the lights, turn off the bright flash light, and observe. Describe and classify the glow slime by its observable properties.


The glue is made up of long chains of molecules. The liquid starch links the long chains of molecules together, creating the glow slime. The glow-in-the-dark pigment or phosphorescent pigment absorbs light and then re-emits it over a period of time causing the glow slime to “glow.”


PLEASE follow these safety precautions when doing any science experiment.

• ALWAYS have an adult present.

• ALWAYS wear the correct safety gear while doing any experiment.

• NEVER eat or drink anything while doing any experiment.

• REMEMBER experiments may require marbles, small balls, balloons, and other small parts. Those objects could become a CHOKING HAZARD. Adults are to perform those experiments using these objects. Any child can choke or suffocate on uninflated or broken balloons. Keep uninflated or broken balloons away from children.

Jason Lindsey

STEM Certified Educator, Science Multimedia Journalist, and Meteorologist

EMAIL: This email address is being protected from spambots. You need JavaScript enabled to view it.





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