Chemistree Lab – Teacher key Analysis 1. How did the salt get to the branches? The solution was absorbed by the paper and deposited as the water evaporated. 2. How did the crystals form? Crystals formed when the water evaporated 3. Why did this reaction take so long to occur? The particles are so large which makes it take a long to be absorbed 4. Use your textbook: Define the word crystal. Crystal- solid with particles arranged in a regular repeating pattern 5. Name 2 edible crystals. Edible crystal is sugar, rock candy, salt Bonus. What is the purpose of the bluing? Bluing makes the crystals so fine Conclusion An example: When a solution of salt, the solute, and water, the solvent, is absorbed by the tree the water evaporates leaving behind the salt to form crystals. The solute is a solid and the solvent is a liquid. We made a solution using salt as the solute and water as the solvent, we poured the solution into the Petri dish and placed the tree in. The paper absorbed the solution; the liquid evaporated leaving solid salt crystals on the branches.
