Do you like to draw? How would you like for your drawing to come alive? You can make it happen and all you need are a few ingredients from around the house. Jason Lindsey, aka “Mr. Science,” with Hooked on Science and a kid scientist explain the science behind “floating ink.” Go to http://hookedonscience.org/nextgenerationsciencestandards.html for the FREE NGSS experiment guide.
Download related lesson plan here: https://www.teachertube.com/document/35838
You are not going to believe what you can do with a dry erase marker.
It?s an experiment you are going to want to try.
And my experiment helper, Madigon, has a red dry erase marker.
Red seems to work best.
I have a dinner plate over here and some warm water over here.
Madigon, go ahead and draw me a stick figure on my dinner plate.
She is going to draw a head, now the body, the legs, and the arms.
Next, I?m going to pour some warm water on my dinner plate.
And then I?m going to move the dinner plate around just a little bit.
And something neat is going to happen.
Did you notice that?
What?
Your stick figure is floating in the water?
Pretty cool!
Here?s the science behind.
The expo dry marker ink is insoluble.
Which means it won?t dissolve in a liquid.
When water is added to the plate, a strong buoyancy force, forces the drawing from the plate.
Since the ink is less dense than water, it floats.
For Hooked on Science, I?m Jason Lindsey.
You are not going to believe what you can do with a dry erase marker.
It?s an experiment you are going to want to try.
And my experiment helper, Madigon, has a red dry erase marker.
Red seems to work best.
I have a dinner plate over here and some warm water over here.
Madigon, go ahead and draw me a stick figure on my dinner plate.
She is going to draw a head, now the body, the legs, and the arms.
Next, I?m going to pour some warm water on my dinner plate.
And then I?m going to move the dinner plate around just a little bit.
And something neat is going to happen.
Did you notice that?
What?
Your stick figure is floating in the water?
Pretty cool!
Here?s the science behind.
The expo dry marker ink is insoluble.
Which means it won?t dissolve in a liquid.
When water is added to the plate, a strong buoyancy force, forces the drawing from the plate.
Since the ink is less dense than water, it floats.
For Hooked on Science, I?m Jason Lindsey.
