Posts tagged: soap crafts

Fireworks in a Dish

By , March 6, 2011 4:35 pm

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If you have milk, food coloring and dish washing soap on hand…

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you can have impressive rainy-day science fun!

Pour some milk into a plate:

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Wait a minute for any motion in the milk to settle down, then add four drops of different colors of food coloring.  Place the drops next to each other near the center of the plate.

 

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Wait a minute or so until the colors get a bit blotchy-looking:

 

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Take a clean cotton swab and gently place it on the colors.  What do you think will happen?

(SPOILER ALERT:  Absolutely nothing.)

Now put a drop of dish soap onto the other, clean and dry end of your swab.

 

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What will happen when you put the soapy swab gently onto the colors?  Look!

 

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It even continues impressively swirling and churning after you have lifted the swab out of the milk!

 

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Try putting your swab in different areas of the plate to see what new patterns form.

 

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NOTE:  It is very important not to stir, just hold your swab still in the milk.

Make sure you have plenty of milk and food coloring on hand for this because your kids won’t want to do it just one time.  This kept my 5 year-old entertained for at least an hour!

 

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Many thanks to Steve Spangler’s Science Experiments for this really fun idea! Steve Spangler has a good explanation of the science behind this colorful display. You can read it here.

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This is my contribution to this month’s Unplugged Project theme of soap.  Can you come up with a soap-themed project?  If so, please join in and add a link or comment to the original project post.  You can read more about the Unplugged Project here!

“Soap” – March Monthly Unplugged Project

By , March 1, 2011 10:18 am

The theme for March’s Unplugged Project will be (…drumroll please…):

Soap

As long as there is some arguable connection to soap, you are good to go!  Be creative, have fun, please join us.

Please share your project either via a link to your blog post, or, if you are blogless, describe your project in a blog comment.  The more projects we have to share, the more fun it is.

For more information on what The Unplugged Project is, I invite you to read-up on it here.

 

 

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