Leaf Bag Makes Water

1. Leaf Bag Makes Water Materials: Leafy branch/houseplant; clear plastic bag prepared earlier What you do: Show bag tied around leaves for an hour or more. What students see: Water droplets collect inside the bag. Question: Where did the water come from? 2. Paper Flower Blooms in Water Materials: Paper flower with folded petals; shallow water What you do: Place folded flower on water. What students see: Petals slowly unfold. Question: What is the water doing inside the paper? 3. Soap Bubble on a Loop Finds Minimum Shape Materials: Wire loop shapes; bubble solution What you do: Dip different loops and compare films. What students see: Films stretch into smooth minimal surfaces. Question: Why are the films smooth instead of wrinkled?

Predict → observe three demonstrations → compare what changed → choose independent activity station → cleanup/share. Guiding questions: Question: Where did the water come from? Question: What is the water doing inside the paper? Question: Why are the films smooth instead of wrinkled?