Pepper Paints

Scienc, Science, Science, Science, Science

Ok, so I am a little late posting our activity for this weeks unplugged SCIENCE project. We have been busy around here!

We actually did a few experiments, all using coins or money. First we washed some pennies. This was super easy and worked really well. 1 teaspoon of salt to 1/4 cup of vinegar. Add your dirty pennies and with in seconds they are shiny again!

Next we checked to see if our dollar bills were counterfeit! We folded the bills in half and used a strong magnet to “move” the bill (slightly). This works because real bills are printed with magnetic ink.

You may notice that there is some red printing on these bills. These are two bills that we have had sitting near our computer waiting to be tracked at WWW.WheresGeorge.Com One of these bills is from Michigan and the other from West Virginia. This is a neat little experiment!!

Next, we mad a submarine using coins to weight down the sub. First you need to make 3 dots on an empty water bottle and then cut holes at each of these spots. Next you will need 4 quarters and 4 nickles stacked and taped together.

Now tape the stack of quarters on the back hole and the stack of nickles on the front hole. Now wad up a ball of modeling clay and stick a straw through the middle-cleaning all the clay out of the end of the straw. Now mold the clay and straw around the opening (top) of the bottle.

Now fill up the sink with water, fill up the bottle with water until it sinks.

Now the fun part-blow all the water out of your sub through the straw and watch it rise back to the surface.

Ginger liked this so much she took it in to the bathtub tonight!

Tags: dollar bills, magnetic ink, science project, science science, submarine