Question

You left a glass full of water by a window in your house in the morning. Three hours later you walk by the glass, and the water level is significantly lower than it was in the morning. You have made the observation that the water level in the cup is lower. Then, you ask the following question: “Why is the water level in the cup lower?” What is a possible hypothesis you could make?

Answer 1

“If a glass of full water is placed by a window and 3 hours go by, then the water in the cup will be lower because the water will evaporate.”