Challenge: Make a Flinker

Can you make a flinker...

something that neither floats nor sinks?

Fish, submarines, and SCUBA divers are all examples of flinkers - the science term is neutrally buoyant.

Try it in the tub or sink tell us about it!

Bubble Results

It is about 16' here on my porch and I took out the bubbles as I challenged everyone to do.

It was tricky to use the tiny bubble wand with gloves but here's a bubble I grabbed.

Then, I let it sit on my wand for a few seconds. First the bubble shrank, then if froze!

Finally, it broke.

Bubble Challenge

I am going to set out a challenge for you all. I want you to grab some bubbles - yes the kind we usually reserve for sultry summer days and noisy playgrounds. Try blowing some bubbles today. How do you think bubbles will behave in cooler weather?

Blow and then catch them on your wand. What happened?

Now, it looks like Friday around central Massachusetts is going to be a cold day with a predicted high of about 21' F. So, Friday morning do the same thing - blow a few bubbles, catch one on your wand, and watch. What do you *think* might happen? What is different?

What did happened?

Post here and tell us about your experience.