Materials List
4 clear or glass containers (same size) you can use to hold at least ½ cup of water
1 measuring cup
1 bottled water or 2 cups of tap water
1 teaspoon,
1 spoon
1 plastic cup, several napkins
4 teaspoons of cooking oil (any kind)
Oil absorbing cloth pads or facial tissues (cut a big sheet into smaller squares) or cotton balls/pads or paper towels
1 dish washing detergent such as Dawn®
1 marker
Optional: 1 blue food coloring
2 bird/duck feathers, available from Amazon and craft stores such as Michaels
1 small graduated cylinder, ~10 ml or 20 ml
1 small funnel