As you probably heard, yesterday we started our egg-speriment (experiment)! We took two hard-boiled eggs, passed them around to feel and touch, and then placed one egg in a container of coke and one egg in a container of water.
We took some guesses about what would happen to the eggs overnight.
For the egg in the coke, the Kinders' guesses were:
- The egg will turn black
- The egg will explode
- The egg will crack
- The egg will turn into a bouncy ball
For the egg in the water, the Kinders' guesses were:
- The egg will turn blue
- The egg will explode
- The egg will turn purple
- The shell will fall off
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| This was our worksheet we used to colour how the eggs looked before and after. |
The next morning...
The Kinders were VERY excited to see how the eggs looked.
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| Look what happened to the egg that was in the coke all night!!! |
We talked about what sugar can do to your teeth. We talked about how teeth and eggshells are similar. As stated on the MadSci Network, "Both teeth and eggshells are made of stone-like minerals containing mostly calcium." (Taken from here)
This experiment shows us why we have to brush our teeth every morning and night, and especially after eating candy or sugary foods or drinks!
We talked about how to brush teeth. We had our "helping hand" of the day put some toothpaste on the toothbrush and try to brush the sugar off the egg.
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| It's working! |
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| Look how many sugar cubes are in a coke! When researching this, sources said anywhere between 10-14 sugar cubes are in a coke. WOW! |
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| Look how clean our egg is getting! |
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| Look what happens when we brush our teeth! The sugar comes off. |
We also talked about how sometimes brushing our teeth doesn't get EVERY SINGLE sugar bug off. This is why we have to visit the dentist a couple times a year; to have a hygienist clean our teeth with their special instruments!
To finish off our lesson, we watched a video on youtube about proper teeth brushing!