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Ice-cream |
Rainbow Milk |
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Shakhashiri |
1. 1. Measure ½ cup of milk and place in small plastic bag. Add ½ cup of whipping cream or half and half to milk.
2. 2. Add ¼ tsp. vanilla to milk mixture.
3. 3. Measure ¼ cup of sugar and place in small plastic bag.
4. 4. Close the bag securely, squeezing out most of the air before closing.
5. 5. Place the small bag inside the large bag. Surround the smaller bag with a few cups of ice.
6. 6. Pour ½ to ¾ of a cup of salt on the ice and seal the large bag.
7. 7. Knead or roll the mixture for ten minutes. After ten minutes check to see if the mixture is frozen. If not continue rolling or mixing. (You will probably want to wrap a coat or shirtsleeves around the whole thing to keep your hands from freezing).
8. 8. When the mixture is frozen remove from large bag. Wipe salt from small bag, open and enjoy.
Introduction
A team of explorers have just and have brought with them samples of a substance
they are calling Oobleck. You and your partners are
part of a team of scientists who have been given the job of investigating the
substance so that it can be described to the rest of the world.
Materials1 cup corn starch
1/2 c. water
food coloring (optional)
pie tin or other container
Directions:
1. Put the corn starch into the pie tin or other flat container
2. Add a drop or two of food coloring to the water
3. Add the water slowly while mixing Be careful not to
add too much water!
4. Play with Oobleck! Try to determine if it's a
solid or liquid.
5. When you are done playing with Oobleck, you may
throw it in the trash.
Use the scientific method to identify Oobleck as a solid or a liquid.
Make observations about Oobleck. Use all of your senses to describe Oobleck.
Purpose
To observe the unusual behavior of milk as it is acted upon by a common household detergent.
Procedure
Students should pour the milk into a petri dish to a depth of about one cm. The milk should have time to "sit" for a minute so that there aren't any currents from the pouring process. A couple of drops of the water soluble food colorings should then be added to the milk near the edge of the container at 0, 90, 180, and 270 degrees.
Observations may begin when a toothpick dipped in detergent is touched to the surface of the milk in the center of the petri dish.
Mix the solution for the
crystal trees as follows:
100 g of NaCl (salt)
180 mL
blueing solution (White’s bluing solution which you
can purchase in
the detergent isle)
180 mL
of water
30 mL
of ammonia
Note: This solution
might stain the container blue so keep that in mind when selecting a container
Directions: Create
a tree or object out of construction
paper or card stock. Place ¼ inch of
solution in a dish of some sort. Place
the object on the dish. Let sit for 24
hours.