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Home's Cool Learning Activity With Simple Science: How to Make a Rubber Egg

Home's Cool! While we're all working from home, the parents, former teachers, and play experts at EI are sharing some of their favorite educational activities to help keep your family learning and growing. Check out this idea from Michael Sheridan, one of our EI Product Managers!Ages: 5+Grades: K+Supplies:• Egg• White vinegar• Glass jar with lidDisappearing Eggshell SetupProcedure:1. Gently place the egg in a glass jar.Disappearing Eggshell Procedure2. Fill the jar ¾ full of white vinegar.3. Watch the bubbles form on the eggshell. This is carbon dioxide gas (like in soda) and is just the beginning of the chemical reactions you’ll observe!Disappearing Eggshell Detail Bubbles4. Put the lid on the jar and let it set for a few days, or even a week.5. Check the jar every day to see if you need to add more vinegar to keep the jar ¾ full.6. After a week, CAREFULLY remove the egg from the jar. Gently wash the egg and rub off the remaining parts of the shell. You’ll be left with a shell-less egg that’s rubbery. Be careful not to squeeze too hard or else the egg might burst!7. Drop the rubber egg from a low height (about 1-2”) to see it bounce and jiggle like a water balloon. Again, be careful not to be too rough or the egg may burst.8. When you’re done with this experiment, you can compost your egg. We strongly advise that you do NOT eat the egg since it has been out at room temperature for a week or more.Explanation:Vinegar contains acetic acid, which is an acid. Eggshells contain calcium carbonate, which is a base.Other experiments:• What happens if you soak the shell-less egg in corn syrup?• After soaking the shell-less egg in corn syrup and seeing the result, what happens when you put the egg back in a jar of water? Try adding some food coloring to the water and see what happens!MIchaelEI Product Manager Michael Sheridan is a jack of all trades! An avid surfer and former international soccer competitor, this outdoor and sporting enthusiast also has a degree in Astrophysics from UCLA and eight years of product development experience in a variety of industries. Prior to helping build EI's science products and brain game lines, Michael developed everything from folding chairs to electric scooters and skateboards!
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Home's Cool Learning Activity With Simple Science: How to Make a Rubber Egg Home's Cool! While we're all working from home, the parents, former teachers, and play experts at EI are sharing some of their favorite educational activities to help keep your family learning and growing. Check out this idea from Michael Sheridan, one of our EI Product Managers!Ages: 5+Grades: K+Supplies:• Egg• White vinegar• Glass jar with lidDisappearing Eggshell SetupProcedure:1. Gently place the egg in a glass jar.Disappearing Eggshell Procedure2. Fill the jar ¾ full of white vinegar.3. Watch the bubbles form on the eggshell. This is carbon dioxide gas (like in soda) and is just the beginning of the chemical reactions you’ll observe!Disappearing Eggshell Detail Bubbles4. Put the lid on the jar and let it set for a few days, or even a week.5. Check the jar every day to see if you need to add more vinegar to keep the jar ¾ full.6. After a week, CAREFULLY remove the egg from the jar. Gently wash the egg and rub off the remaining parts of the shell. You’ll be left with a shell-less egg that’s rubbery. Be careful not to squeeze too hard or else the egg might burst!7. Drop the rubber egg from a low height (about 1-2”) to see it bounce and jiggle like a water balloon. Again, be careful not to be too rough or the egg may burst.8. When you’re done with this experiment, you can compost your egg. We strongly advise that you do NOT eat the egg since it has been out at room temperature for a week or more.Explanation:Vinegar contains acetic acid, which is an acid. Eggshells contain calcium carbonate, which is a base.Other experiments:• What happens if you soak the shell-less egg in corn syrup?• After soaking the shell-less egg in corn syrup and seeing the result, what happens when you put the egg back in a jar of water? Try adding some food coloring to the water and see what happens!MIchaelEI Product Manager Michael Sheridan is a jack of all trades! An avid surfer and former international soccer competitor, this outdoor and sporting enthusiast also has a degree in Astrophysics from UCLA and eight years of product development experience in a variety of industries. Prior to helping build EI's science products and brain game lines, Michael developed everything from folding chairs to electric scooters and skateboards! READ MORE