Microwave Soap Science Experiment
Microwaving a bar of soap is a simple science experiment for kids that you can do at home.
Over at Steve Spangler science you will find out all the details of why this happens and can have a great discussion with your kids.
Magic Milk Science Experiment
Magic Milk Materials:
Shallow container, preferably clear
Whole milk or half-and-half (at room temperature) – These work best, because the higher the fat content the better it works.
Liquid food color (red, blue, yellow, and green)
Dish detergent (I used Dawn)
Magic Milk Instructions:
Pour milk into the container, just enough to completely cover the bottom. Allow the milk to settle.
Add 3 drops of each food coloring across the milk, keep it spread out.
Predict what will happen when you touch the tip of the toothpick into the center of the milk.
Place the tip of the toothpick in the center of the milk. Observe what happens. (Do not to stir the milk, just touch it with the tip of the toothpick.)
Place a drop of liquid dish soap on the tip of the toothpick and predict what will happen when you touch the tip of a soapy toothpick into the center of the milk.
Place the soapy end of the toothpick into the middle of the milk and hold it there for 10 – 15 seconds.
Notice that the food coloring streams away from the point where the soap touched the milk, and the colors in the milk continue to move even when toothpick is removed.
After a while the motion of the food coloring will stop.
Add another drop of soap to the tip of the toothpick and try it again. Notice that the motion of the food coloring resumes.
Experiment with placing the soapy toothpick into different places in the milk.
Sometimes the food color will stream all the way to the side of the dish and then reappear near the center.
Record what you see. What do you think happened?