Dancing Drawings

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Dancing Drawings A Science Experiment

Supplies:

• Smooth dish such as a glass pie plate • Room-temperature water • Dry-erase markers • Paper towels

Experiment provided by

Directions:

1. Make sure your plate is dry and then draw a shape or figure on it with the dry erase marker — anything you want!

2. Let your drawing dry.

3. Carefully add room-temperature water to the dish so that it gently flows over your drawing.

What do you notice happening? Your figure should lift up from the surface of the dish.

Try moving your figure around by blowing on it or gently touching it with your finger.

What’s happening?

If your figure doesn’t lift up, wait a few moments to see if anything changes. If your figure still does not move, try a different dish. (Editor’s note: For us, non-Pyrex dishes worked best.)

Dry-erase markers, unlike permanent markers, are designed to be able to be easily wiped away from smooth, non-porous surfaces like whiteboards or glass. In order to make this happen, the ink has a special oily silicone polymer added, which helps make sure the ink doesn’t stick to surfaces.

The ink used in dry-erase markers is also not soluble in water, so it won’t dissolve. If you add these two things together, you get an ink that won’t stick and won’t dissolve, which is why your drawing separates from the dish when you add water.

The dry-erase ink also has one more special property: it is less dense than water. That’s why your drawing floated and moved on the water’s surface.

Try this! Try this same experiment but then place your hand straight down on the floating shape. What happened?

Did it transfer to your hand?

Alternatively, try picking your drawing up out of the water. Can you lift it up?

What happens when you put it back in the water?

Explore, Discover & Learn!

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E H O M E HT I S A T R W I H S R E E

Bring the Taubman Museum of Art to you with this fun activity inspired by the exhibition In a Decade: Recent Acquisitions to Our Collection, on view through January 3, 2021. The exhibition features a variety of media, including sculptures like this one!

Materials Needed: Model Magic or Playdough Hard, Flat Surface Scrap Paper EXPERIMENT WITH TECHNIQUES Try to make these shapes with your clay! Once you have these techniques down, you can make all kinds of things!

SLAB

PINCH

THIS MONTH: Sculpture

Image Credit: Steve Bickley (American, born 1953), Flor de Consugra, 2008, Powdercoated steel, Gift of Ray Kass, 2012.009

TIP: Use the palms of your hands to roll the clay!

Make a ball and then flatten it.

COIL

Start with a ball and gently press your thumb into the center, about halfway through the ball. Pinch the edges with your fingers to make a little cup or bowl, also known as a pinch pot.

Start with a ball and roll it between your hands until it looks like a hot dog.

Place on a table or hard surface and continue to gently roll until it looks like a snake or rope!

Now that you know some sculpture techniques, see what you can make! Try something abstract, like the sculpture Flor de Consugra, or mold your clay into a tiny creature, a yummy cupcake, or a fancy car—the possibilities are endless!

PRO TIPS

• Protect your work space with a sheet of scrap paper, wax paper, or a scrap piece of fabric! • If you want your clay to dry, just leave it out in the open!

It may take one to three days to harden completely. • If you want to reuse your clay, keep it in a sealed bag or cover it with plastic wrap until you’re ready to play again. • Add color with markers! You can add color whether the clay is wet or dry.

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