Experimenting with Water

We made huge beads of water on coins!

Science: I can experiment with household items; I can explore surface tension

Today, Ms Dool taught us about water. We learned how water molecules "attract" to each other. We can see this at home when water beads when dropped onto a surface or how water beads combine on a windshield when it's raining. Water has a "skin" on top of it that holds it together, almost seeming like a magnetic force. 

We were given time to experiment with water. We used materials like cups, eye droppers, coins, paper clips, and, of course, water! Here are some things we observed: 

"When water lands carefully, it makes small beads." ~ Suzi
"When you have the small bead of water and you drop a paper clip or coin into it, it will take the shape of the item that you dropped in and will go around it." ~ Callie
"My group noticed that we made a mixture of coins and dropped it into a cup to make it full. We figured out that we can drop 5 coins in before the cups sinks, and I'm wondering if we could fit more in by using smaller coins..." ~ Leo
"When you put water into a cup, I found out that you can put more than the cup's volume. It will create a lip and it's interesting how it just holds there." ~ Lawrence
"I realized that even though you think you can make a paper clip float, it doesn't always work. You have to make the paper clip line up with the "skin"." ~ Dillon
"If you fill a cup of water until it starts to spill and you let it sit there, and you get eye level, you can see a little lip over the cup like it's making a mountain over top of the cup. It's cool 'cause you can slide paper clips into the mountain of water and they just float there and it's super interesting." ~ Seb K

We made paper clips float!


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