It’s November! I hope you survived Halloween and ate tons of your favorite candy! Even better, I hope you got a little extra sleep with the time change this weekend.
I’m here with the next installment of Simple Science! This week’s investigation is all about freezing and melting. I teach in Ohio and our first grade standard for this is beyond simple: I can explain how water changes state from solid to liquid.
My kids already know this. Every. Last. One. When we start this unit on matter someone always announces, “I have popsicles that start as juice and get frozen in the freezer so you can eat them!”
So…we get the basic concept and can have some fun!
The question: Will water freeze when mixed with another object? and Which cube will melt first?
The supplies: yard, salt, oil (I used veggie but any type will work), kool-aid drink mix, beads, craft sticks, water and ice cube trays. I love these 6 cup paint trays, 6 cup muffin tins are also perfect.
Each table fills their own tray so that they can observe the materials more closely.
We fill one cup at a time and make predictions as we go. I quickly circulate and pass out the objects to be mixed in, then the kiddos pour in the water and mix.
As we fill the cups, the kiddos use the “hypothesis” side of the lab sheet to record their predictions.
Here’s the tray, all ready to go into the freezer – cup #6 is just water and is our “control.”
The next day, we take the trays out of the freezer and check on the results.
First, the kiddos decide which cubes will melt fastest and rank them on their lab sheet.
Then, they check the ice and record the results.
Then, we continue to watch to see how quickly each cube melts. The salt water cube melts super quickly, so it doesn’t take too long!
Finally, we fill in the actual order in which the cubes melted and discuss what might have made that happen.
You’re thinking this seems like the easiest thing ever…but my kiddos always love it!
Click the image to see this recording sheet in my TpT store.