Yes . . . I know, it's not Wednesday . . . but this is when I had time to post our WACKY WEDNESDAY experiment! sorry . . . AGAIN!
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WACKY SCIENCE Wednesday
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WACKY SCIENCE Wednesday
Today's experiment was very quick and easy to prepare for. We have been dicussing the make-up of a human cell. The naked egg experiment was chosen for two reasons: 1. It demonstrates the semi-permeability of the cell membrane for The "Scout" 2. The "Bug" benefited too. This was a great experiment to dicuss Scientific Method with her.
I have been trying to find experiments that both children enjoy. Not always a easy task with 5 years difference between them!
The Naked Egg
Experiment: Biology #63 in
Janice VanCleave's 201 Awesome, Magical, Bizarre & Incredible Experiments
What we used:
A Clean Canning Jar with lidVinegar
1 Uncooked Egg
1. Place the egg inside the jar - - - be careful not to crack the shell . . . that would equal a yucky smelly mess!
2. Cover the egg with the white vinegar. You only have to use enough to cover the top of the egg.
3. Put the lid on the jar and seal tightly.
4. Oberve what happens inside the jar immediately & document.Now have the children observe the changes they see over the next 72 hours & document.
*NOTE: IF YOU CONDUCT THIS EXPERIMENT - Email Mrs. Mac
DO NOT DICARD THE EGG - You can conduct an additional experiement with the same egg. Mrs. Heather will email you the instructions*
You should see immediate results when bubbles of C02 began forming around the egg and on the surface of the vinegar. The vigegar is chemically reacting to the calcium carbonate of the shell. After 72 hours it will grow in size due to osmosis & the shell will be gone . . . tah, dah!!!
This was a great experiement to help the "Bug" (only 5) to make a hypothesis & help her document her results. Science seems to be a driving force for her to . . . there is an old familar twinkle in her eyes!
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So let us know how your experiment went, you Wacky Scientists!
Mrs. Mac
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