Crystal in an eggshell
The Pre-K children are currently exploring their theories about crystals, and also discussing their knowledge of what causes them to grow into “sparkly” creations. This week we reused egg shells for our crystal research. We carefully observed the empty eggshells and realized it was going to be a challenge to work with such fragile materials. We used glue and epsom salt to begin creating our crystals.
Pre-K thoughts…
“The crystal’s are really beautiful. But these are not ready yet. ”
“The salt is glittery and if you put the salt on the egg it will make it sparkly too. ”
Katerina is making the connection between the salt and the crystals. We believe that her understanding is that the flashes of light in the salt is what is causing the crystals to shine. What are your thoughts?
“If this egg falls it will break into pieces. Small pieces and the egg will sparkle. ”
“My egg got smooshed. It might open when it dries. Also, if there is salt that is not stuck to the egg it will fall out. ”
“If the egg is a little crinkly the salt will come out.”
“I think when it dries it will turn into a blue egg.”
“When my egg dries I want to paint it. ”
“The sparkle (in the salt) is like crystals. ”
Rainbow in a jar
We also created a rainbow in a jar using different liquids. Our first experiment was using only colored water. We tried layering them but there was no separation.
“Water mixes together. When it moves it shakes up and mixes. it’s water.”
We then tried a second time, this time we used a variety of liquids.
“Honey is very sticky and it moves really slow. ”