What Happens When Oil and Water Get Together?
Grade Level: Preschool through 1st Grade; Type: Physics
See what happens when two fluids that have different densities get together.
- Disposable cup
- Food color (any dark color)
- Small funnel
- Vegetable oil
- Pencil and paper and a crayon or colored pencil that matches the food color (alternatively: a camera)
- One test tube with cap
- Optional: some old newspaper and a smock
- You might want to do this experiment over a sink or some old newspaper, it can get messy! Also, a smock might be a good idea.
- If you are using the paper-and-pencil option, use the pencil to draw four or five pictures of the test tube on the paper.
- Fill the cup partway with water and put a few drops of the food color in it. Swirl it around until it’s well mixed.
- Use the funnel to fill the test tube halfway with the colored water.
- Record and present results.
Terms/Concepts: fluids, convection, cumulus clouds, upwelling, density
References: Phineas and Ferb Science Lab, published by Scholastic, Inc., pp. 16-17 (2011).
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state’s handbook of Science Safety.