Monday, March 19, 2012

STAR SCIENTIST



Fergus is our Star Scientist this week.  He read the book Fox in Socks aloud to the class.  It a dangerous tounge twisting book!  He did an excellent job.  He even had a special surprise visit during his read.  You'll never guess who it was! 

Fergus and his mother helped us to make our very own Eco-Friendly Glue!  You too can do this at home.  Scroll down to find out how.

Fergus also shared a presentation all about himself and his family.  To view his presentation click here.

ECO-FRIENDLY GLUE

Materials needed:

½ cup Skim milk
1 teaspoon Baking soda
2 Tablespoons White vinegar
2 plastic cups
Measuring cups
Measuring spoons
Lots of Paper towels
1 Rubber band


Method:

Place 2 Tablespoons of white vinegar and ½ cup of skim milk into a cup. Stir them together and let the mixture sit for 2 minutes. The vinegar will make the protein in the milk stick together to form small white lumps called curds. The leftover liquid is called whey.

To make a quick strainer for the solution, take a large square paper towel and place it over an empty cup. Push it down in the center so it forms a bowl shape. Put a rubber band around the top of the cup to hold the paper towel in place. Pour the curds and whey into the cup with the paper towel. The whey will go through the paper towel and the curds will stay on top. Wait about 5 minutes for the whey to drain through the paper towel.

Use a spoon to carefully scoop out the curds. Put them between two dry paper towels and press down to get all the whey out. Empty the cup with the whey and dry it with a paper towel

Put the curds into the cup, stir in 2 teaspoons of water and then add 1 teaspoon of baking soda. The baking soda reacts with the vinegar that’s in the curds, producing carbon dioxide. If you hold the mixture up to your ear, you can hear tiny bubbles popping. If this mixture doesn’t look like glue, just add a ¼ teaspoon water to get the consistency you want.

















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