Additional Activities Saturated solutions aren't just for science. Saturated solutions and solubility play an important role in our lives, especially in the kitchen. In this home kitchen experiment, we will be examining how temperature relates to solubility. CAUTION: Please do the activity seriously to avoid some problems. Be careful in handling hot water! Directions: 1. Prepare two large cups and place it on the plane table. 2. Add hot water in one of the cup and cold water in the other cup. 3. Next, spoon by spoon add as much sugar as you can if it keeps dissolving. Do this to the hot water first to avoid it cooling, and then repeat with the cold water. 4. Record how many spoonful of sugar you can add in each cup until it is completely dissolved. Temperature Cold Hot Spoonful of Sugar Question: Which temperature had a greater solubility and how did you know? Include observations from your experiment.
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Answer:
Answer Key:
1. Prepare two large cups and place it on the plane table?
2. Add hot water in one of the cup and cold water in the other cup?
3. Next, spoon by spoon add as much sugar as you can if it keeps dissolving. Do this to the hot water first to avoid it cooling, and then repeat with the cold water?
4. Record how many spoonful of sugar you can add in each cup until it is completely dissolved?
Question:
Which temperature had a greater solubility and how did you know?
Explanation:
Explanation Key:
1. The hot water had a greater solubility because when you put salt on hot water it will dissolve easily because temperature is the one that.
2. So hot water is less dense than cold water. When you put the two together with the hot water on the bottom, the hot water rises to the top, mixing with the cold water along the way and creating purple water.
3. Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.
4. Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster. As they move faster, they come into contact with the sugar more often, causing it to dissolve faster.
Questions:
- Energy from hot water molecules makes solids more soluble. In hot water, molecules are moving around more, so there are more collisions between the water molecules and a solid.