Week at a Glance:
- Book of the Week GIVEAWAY: Naked Eggs and Flying Potatoes by Steve Spangler
- The Naked Egg Experiment with Step-by-Step Directions and Photos
- Indoor Science Fun for Cold & Icy Days (Or Long Summer Days) (Or Homeschool Fun Days)
Book of the Week GIVEAWAY: Naked Eggs and Flying Potatoes by Steve Spangler
Why we love this book:
I figured since I’m on my fourth week of highlighting Naked Eggs and Flying Potatoes by Steve Spangler, it was time I shared the “Naked Egg” in Naked Eggs and Flying Potatoes. The Naked Egg Experiment is the easiest we’ve tackled thus far. I mean it’s so easy you can even do it while you have the flu. Doesn’t that sound like fun?! The experiment, not the flu.
Steve Spangler is a science teacher who turns science time into a hands-on, incredibly fun time. I like the experiments in his book because they have clear step-by-step directions with photos. Each science experiment also includes an in-depth kid friendly science explanation. Additionally, you can find most of the items in your pantry and around the house. These experiments are perfect for homeschool science, afterschool fun or long summer days.
The Naked Egg Experiment
- raw egg
- glass or jar
- time & patience
Step 1: Cover Egg with Vinegar
- Carefully place a raw egg in a glass and cover it with vinegar.
Step 2: Observe the Reaction
- Do you see bubbles forming on the eggshell?
Step 3: Soak the Egg in the Vinegar for 24 hours
- After 24 hours, pour the old vinegar out.
- Cover the egg with fresh vinegar.
- Do you observe any changes in the eggshell?
- After 24 hours, our eggshell was disappearing and the egg felt like a rubber ball.
Step 4: Leave the Egg in the Vinegar for 7 Days
- Do not disturb your egg for 7 Days. Yes, a whole week!
- Observe the egg each day. What is happening?
- Observe the bubbles forming on the eggshell.
- We definitely observed our eggshell disappearing.
- And yes, on occasion the kiddos gently touched the egg to feel what was happening.
Step 5: Remove the Egg from the Vinegar
- After 7 days, discard the vinegar and carefully rinse the egg with water.
- How does the egg look? Is it translucent?
- How does the egg feel? Ours felt like a rubber ball.
- What happened to the egg? Our egg had expanded.
- The only thing that should remain is the membrane of the egg.
*Our egg didn’t look translucent. We even shined a flashlight on it but it was not translucent. Mommy got the the flu during our 7 days and quarantined herself from the rest of the family. Therefore, our egg soaked in the vinegar for 10 days. Our egg white appeared slightly “solid” from soaking in the vinegar. Our egg definitely absorbed some of the water from the vinegar and expanded.
Step 6: Have Some Fun
- We did a little experiment to see how high we could drop the naked egg before it would break.
- We began about 2 inches high.
- The kids took turns increasing about 2 inches at a time.
- Finally at about 12 inches . . .
- The kids thought it was so gross. I thought their reaction was priceless!
- The kids pulled off the membrane, mostly still intact.
Step 7: Record Your Findings
- Each of the kids have a science journal in which they record our little science experiments.
What’s Going On Here?
“The acetic acid in the vinegar reacts with the calcium carbonate in the eggshell to make calcium acetate plus water and carbon dioxide bubbles that you see on the surface of the shell.” *Steve Spangler
We’re GIVING AWAY one copy of Naked Eggs and Flying Potatoes by Steve Spangler
To enter this contest, use the Rafflecopter to answer the following question. After you leave a comment, you can move ahead with more entries.
Answer the following question in the comments section of this post.
What is your favorite way to prepare and eat eggs? I’m assuming it’s not soaked in vinegar. We’re from Texas so we looooove our breakfast tacos! (Or just say “Hey.” We’re flexible around here.)
No entries after 11:59 pm Central Time, Sunday, February 6, 2015
The winner must be a resident of The United States.
The winner will be selected at random and announced Monday, February 9, 2015. Check back to claim your prize. It might be you!
More Cool Science Experiments for Kids
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