In this activity, students work in pairs and compare two different types of "lava" - thin and thick.
Step 1: Get supplies and print worksheets.
Each student needs:
Each pair of students needs:
- newspaper or plastic for covering a desk or table
- a paper plate
- a plastic spoon
- 2 clear plastic cups (dixie cups will also work)
- water (the model for thin lava, placed in one of the cups)
- flour and water mixture (the model for thick lava, placed in the other cup)
- a paper mat
To prepare the thick lava, the teacher needs:
- a gallon-sized ziplock bag
- 1-½ cups of water
- 2 cups of flour
- red food coloring (optional)
This should make enough thick lava for about 30 students (15 pairs).
Step 2: Prepare the “lava.”
To make thick lava, watch this video to see how we mix up a batch in a plastic bag without making a mess. You can also mix your lava in a mixing bowl.
To make thin lava, we use plain water (or water with a drop or two of food coloring).