Students will observe water moving in waves.

Materials:
A 1 liter plastic bottle for each student.
Vegetable oil
Food coloring
Water
Paper
Pencils

Instructions:
Give each student a plastic bottle.
Ask students to fill the bottle two-thirds full of water.
Direct students to add a few drops of food coloring to the water.
Ask students to fill the bottle to the top with oil, then screw on the top tightly.
Tell students to turn the bottle on its side and gently roll it around to make waves.
Instruct students to draw a few pictures of the waves they see.
Direct students to write down anything they notice about the movement of the waves.
Have a class discussion about why students think the waves move the way they do.
As an extension activity, discuss other factors that might effect waves such as the ocean floor, sandbars, rocky coasts and, of course, the moon.

Watch The Video

Construction of a Wave Bottle

Ocean in a Bottle Science Experiment for Kids : Filling the Bottle in Ocean in a Bottle Experiment