Explore gravity with slime!

supplies needed

• 147.9 ml Elmer’s Glow-in-the-Dark Glue
• 177.4 ml Elmer’s Glitter Glue
• 147.9 ml Elmer’s Translucent Colour Glue
• 3 bowls (one for each colour of slime)
• ½ tbsp baking soda for each slime
• Contact lens solution
• Kinetic Sand®

Kinetic Sand® is a registered trademark of Spin Master Ltd

instructions

1. Pour each type of glue into a separate bowl.
    
2. Add ½ tbsp of baking soda to each bowl and mix thoroughly. Add 1 tbsp of contact lens solution to the bowl of slime using 147.9 ml glue and 1 and ¼ tbsp for slime using the 177.4 ml glue. Mix until solution gets thick and slime begins to form.
    
3. 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.
    
4. Mix Kinetic Sand® into the slime made with the translucent colour glue.
    
5. Watch SciShow’s YouTube video about gravitation with your class.
    

   

6. Are you ready to use slime to learn about gravitation? Work with your class to come up with some gravitation tests for your slime. Throw each kind of slime against a wall and see which one reaches the ground first. Toss the slime onto the ceiling and predict which one comes unstuck first. Hold out your slime to see which one drops to the ground first.
    
7. Once you’re done with your testing, have your class get out their lab journals and answer the journal prompt in short answer responses.  

*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), seek medical attention immediately.

*Some contact solution brands work better than others; check out our Slime Tips section for all the details