I conducted three experiments using milk, juice and carrots. The objective was to see the change in milk after sitting in a warm, dark place in an open container for three days. The juice experiment objective was to see what would happen if 1/6 of a cup of cherry juice was added to two cups of three glasses at water, each at a different temperature. The objective of the carrot experiment was to see the outcome of the carrot size after sitting in a glass of salt water as opposed to a glass of fresh water for 24 hours.

Part 1: Milk

My hypothesis for the milk experiment: I think after the three days are over, the milk will turn a yellowish color from the bacteria after being at room temperature. Depending on how warm its storage place is (a microwave), I believe the milk may start to spoil and possibly have signs of becoming solid or having an unpleasant smell. The reason I believe this will happen is the popular outcome of spoiled milk, as it generally has a chunky consistency.

Process:

1. Add ½ cup of milk to a shallow glass
2. Notes, pictures, observations
3. Store in a warm, dark place for three days.
4. Observe (any) changes and take pictures of milk every day.

Notes and observations:

Day 1: The milk is fresh, so it has no noticeable abnormal characteristics.

Day 3:  The milk has a very slight but sure odor and the color seems a little bit darker, but it may have been the lighting.

I believe the milk didn't do much probably due to the temperature of its storing space, the microwave. The microwave, seemed like it would be a slightly higher temperature at first due to how much of an enclosed space it is with the rubber around the door to let air from getting in or out. However, it seemed to be closer to room temperature than anything. Had the microwave been warmer, or had I had a warmer space to store the milk, I think the results would have been different, and perhaps my hypothesis wouldn't have been so far from the truth.

Part 2: Juice

My hypothesis for the juice experiment: I think the juice when added to hot water will only become less concentrated, mixing with the water completely. When added to ice cold water, I believe it may separate at first impact because in the case of any drink with ice in it, the ice will melt, leaving a watery separation on the top of the drink until manually mixed in. When added to room temperature water, I believe that it will slightly separate, then mix completely.

Process:

1. Pour one glass full of two cups of hot water.
2. Pour 1/6 of a cup of cherry juice over the hot water.
3. Notes, pictures, observations.
4. Pour one glass full of two cups of ice cold water.
5. Pour 1/6 of a cup of cherry juice over the cold water.
6. Notes, pictures, observations
7. Pour one glass full of two cups of room temperature water.
8. Pour 1/6 of a cup of cherry juice over the room temperature water.
9. Notes, pictures, observations.

Notes and Observations:

When added to hot water, the juice did mix in completely with the water.

When added to the cold water, the juice separated as it sunk to the bottom of the glass and left a layer of ice water at the top.

When added to the room temperature water, the effect was similar to the ice water, but the layer of water at the top was more noticeable as the juice sort of sunk to the bottom, leaving a cool cloudy effect for longer afterward than it did with the cold and hot water.

I was correct for the most part in all my hypotheses for the juice experiment with the exception of the room temperature juice and water. It was definitely a surprise to see how the juice clouded up in the water, then went toward the bottom of the cup.

Part 3: Carrot

My hypothesis for the carrot is that the carrot that is in the salt water will expand because salt retains water. I think the carrot in the fresh water might expand as well, but not as significantly as the salt in the salt water.

Process:

1. Pour one cup full of two cups of salt water
2. Pour one cup full of two cups of fresh water
3. Cut carrot in half, measure each half
4. Tie string around cut half of each carrot and place cut end down in each glass
5. Leave for 24 hours
6. Observe, take notes, pictures

Notes and Observations:

To my surprise, my saltwater carrot shrunk. The string wasn't as tight and the measurement was almost 1/3 of an inch smaller. Not a lot happened with my freshwater carrot, save for what looked almost like a centimeter or two of growth. The string was still very tight.

The saltwater carrot before the experiment:

The freshwater carrot before the experiment:

The saltwater carrot after the experiment:

The freshwater carrot after the experiment:

Clearly I was mislead about the salt most likely making the carrot retain the water around it. I pretty much figured not a whole lot would happen to the fresh water carrot, but the centimeters of growth were still a little shocking.