water purification

In many places around the world, purified water is not always readily available. But sunshine is. For example, purified water…

water turbine

pictured: Cut-away view – hydraulic turbine and electrical generator, cutaway view. A : Generator; B : Turbine; 1 : Stator, 2 : Rotor, 3 :…

Water pumps Waterworks Museum (video 2:18) – learn about water pumps. The pumps on the museum supplied water to Boston,…

A civil engineer created the slippery part of the water slide. A civil engineer designed a pumping system to circulate…

Waste is unwanted materials and objects that people have thrown away. It is often also called trash, garbage, rubbish, or…

Wallace and Gromit are the main characters in a British series consisting of four animated short films and a feature-length…

warship – a ship carrying weapons, which is used by the navy. Some warships also carry naval aircraft. Support warships…

EV3 TrotBot – Version 2: Inspired by a Galloping Horse. In the same way that it is more tiring to…

Viscosity – a physical property of fluids. It shows resistance to flow. In a simple example, water has a low…

Venus de Milo – We usually think of this beautiful statue as a work of art, but it is also…

vortex generator (VG) an aerodynamic device, consisting of a small vane usually attached to a lifting surface, such as an…

Sight (or vision) is one of the senses. Having sight means to be able to see. Some simple animals can…

Videoconferencing (or video conference) – conducting a conference between two or more participants at different sites by using computer networks…

Virtual Field Trip (vft) – make a documentary virtual field trip to a destination or project. Include information about the…

information from 2009 (check for updates) U.S. Vehicle Emissions Regulations Tier 2 is the set of federal emissions regulations set…