LESSON DESCRIPTION:
In this lesson, students explore fluid dynamics as they demonstrate some of the odd properties of water. Students learn how to create a siphon, a water hammer, and an Archemetes screw. Students create a siphon, and make water defy gravity by using surface tension.

TIME REQUIRED: One Hour

OBJECTIVES:
Students learn about some of the technologies that were used by early civilizations to control the flow of water. As students explore, they will learn the principles behind how the siphon, the Archemetes screw and the water hammer can cause water to flow against the pull of gravity. In exploring surface tension, students see a dramatic demonstration of how the molecular attraction of water molecules cause the contraction of water surfaces.

FACILITIES REQUIREMENTS:
Outdoors; tables; hose bib/water spigot; and a warm day.

SAFETY:
A few drops of bleach will be used to disinfect the water containers the water students will be using. Students are not allowed to drink the water.

CALIFORNIA SCIENCE STANDARDS ALIGNMENT

Kindergarden: 1st Grade: 2nd Grade:   3rd Grade: 4rth Grade:   5th Grade: 6th Grade: