How to Make a Whirlpool Science Project

A small whirlpool in a lake
••• tourbillon image by R.Bauer objectifs.de from Fotolia.com

Liquid that spins in a circular motion forms a whirlpool. A vortex is a whirlpool with a downward draft. Whirlpools occur most frequently when water is forced through a narrow opening and then flows into a more open area. The water speed increases as it goes through the opening, creating a whirlpool downstream. Whirlpools can also occur in the ocean where water flows through narrow straits, particularly when the tide is changing. A model of a whirlpool or vortex can be created with simple items around the home.

    Remove the tops from both bottles. Fill the first bottle ¾ full of water. Add a few drops of food coloring.

    Hold the second bottle above the first with the bottle openings together. Use the duct tape to join the two bottles together securely. Tip the bottles so the water flows over the joined section to verify no water leak occurs. If water leaks out add more duct tape.

    Create a vortex. Turn the connected bottles vertically so that the bottle with the water is above the empty bottle. Swirl the bottles in a circular motion as fast as possible. A whirlpool will form in the top bottle as it drains into the bottom bottle.

    Things You'll Need

    • 2 clean, empty 2 liter bottles
    • Water
    • Food coloring
    • Duct tape.

    Tips

    • Add small items such as miniature boats or fish to the bottles before sealing them to show the effect of a whirlpool.

Related Articles

How to Make a 3D Model of a Hurricane
How to Make a Hurricane for a Science Project
How to Build a Model Tornado
How to Make a Tornado in a Bottle Using Dishwashing...
Four Factors That Create Ocean Currents
How to Connect Two Two Liter Bottles
Types of Water Currents
What Weather Conditions Causes Blizzards?
How to Make a Working Heart Model
Landforms in Freshwater Areas
How to Mix Vinegar & Baking Soda in a Bottle Rocket
How to Simulate a Tornado
Landforms and Natural Resources of the Coastal Plain
Advantages & Disadvantages of Constructing Dams
Density Vs. Viscosity
How to Measure Carbonation Levels
How to Calculate GPM from PSI for Water
How to Make a Homemade Submarine That Floats & Sinks
How to Calculate Volume of a Circular Cylinder
How to Siphon Water Upwards for a Science Experiment

Dont Go!

We Have More Great Sciencing Articles!