STEM Round 3

Black Snake (Lab Report)

The black snake experiment on Thursday the 7th, when like this. When we mixed 20g of sugar and 5g of baking soda together we got a solution of 2 food ingredients. We had a bowl cover with an aluminum foil of sand and we poured alcohol until it was wet and soak. We made a 2 thumbs size hole through the sand but not through the bowl and the aluminum. We poured all of the solutions to the hole, and we lighted the sand with some matches. We saw that the alcohol was burning with a blue and orange flame dancing around while the solution burning, turning to a mad black the outside, the inside colored a dark bronze and smelling burned because of the sugar. The texture looked rough with a fair hardness, but it felt very light like a piece of cotton, very soft like cotton and fragile like cotton candy. Overall it was fun to see the outcome.

The Rocky Candy

When we put the simplest food ingredients with the simplest liquid on Earth, we have an extremely delicious sweet rock candy. Boil the water at the temperature of 100 degree Celsius then pour table sugar into the boiling water. Stir it until it becomes thick and sticky close like ATM glue. The taste of it should be close to honey but not too sweet. Pour out the sweet water and put it into a clean glass. Put a stick with sugar table on it into the glass. Make sure the stick is straight and secure by using whatever that help the stick stand straight. 4 days to 7 days under the room temperature or less, you get your extremely delicious sweet rock candy. It happens like that because when the table sugar bonding dissolves with water bonding, it mixed up together and become a sweet liquid. The bonding in the liquid is just floating all around nothing to hold on. When we put the stick inside the sweet liquid, the bonding stick to the stick, become a hard crystal and the extremely delicious sweet rock candy.

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