wind
Tags: [Electricity, energy, alternative energy, renewable, fossil fuels, solar, wind, hydropower]  ...
Tags: [Wind, power, model, alternative energy, renewable resource]  ...
Tags: [drag, wind, air, plane, flight, air resistance]  ...
Tags: [alternative energy, energy, electricity, battery, resources, circuit, electron, renewable, wind, water, solar, green, grade 4, grade 5, grade 6]  ...
Tags: [balloon, air, air pressure, atmospheric pressure, Bernoulli, Bernoullis principle, properties of gases, properties of air, properties of matter, polymer, breathing, CO2, fire extinguisher, wind, ...
Tags: [air, air pressure, atmospheric pressure, Bernoulli, Bernoullis principle, lift, airplane, properties of gases, properties of air, gas, lung, model, balloon in a bottle, breathing, diaphragm, wind, ...
... than a penny).The giant hummingbird of the Andes is 23 cm long and weighs 20 grams. Birds may not see or recognize window glass. To alert birds that something is there, we can put something on the glass, ...
Students make bird silhouettes to prevent birds from crashing into windows. Introduction Pollinators are attracted to specific colours and may get confused by man-made objects. When there is a pane ...
... some flexibility. This is particularly noticeable at the top of a tall building on a windy day. The shorter the building the stiffer it is, and the higher the natural frequency. This activity has been ...
... from moving water), geothermal energy (heat energy from the earth) and energy from the sun, wind, oceans, and the earth's biomass (such as wood). In 2005, almost 61 per cent of Canada's electricity (and ...
Students see how the movement of wind can be used to produce other kinds of energy. Introduction People have been using wind as a source of power for centuries. The earliest wind-powered machines ...
... down some carbohydrates at this point. The resulting mushed up food is called a bolus. Esophagus and Epiglottis: The epiglottis prevents the bolus from entering the trachea (or "windpipe") and directs ...
... hold the plant in the ground, especially when it’s windy. They also soak up water and nutrients for the plant. Examples: carrots, turnips, radishes. Bulbs are underground stems that store lots of food ...
Students discover the fastest way to inflate a windbag using Bernoulli's Principle. Introduction Bernoulli's Principle states that as the speed of air increases, its pressure decreases. When you ...
... to the low-pressure air surrounding it. "Winds blow from high to low." When the balloon is placed inside the bottle, it will not inflate, since the bottle is already filled with air particles with no ...
... to fill the area of low pressure ("winds will blow from high to low"), effectively pushing the flame over so that it bends towards the straw. Objectives Students will be able to: Explain ...
Students make a model of the human lung with a pop bottle, straw, and balloons. "Winds will blow from high to low" applies even during breathing! Introduction When we breathe in, the volume of the ...
... gap, which we feel as wind. Wind is the flow of air from a high pressure zone to a low pressure zone. Air always flows from a high pressure zone to a low pressure zone. To help students remember the direction ...
... easily observed by watching raindrops on a windowpane. Adhesion holds the drops to the glass. Even if the window is tilted forward, some drops will cling to the underside of the pane. Cohesion can be seen ...
... backward acting force (also called wind resistance). Lift opposes gravity and thrust opposes drag . Drag and gravity are forces that act on anything lifted from the earth and moved through the air. ...
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