The inner workings of a grain elevator demonstrate how the kinetic energy of a conveyor is used to increase the gravitational potential energy in stored grain. This is later converted back to kinetic energy when the grain is loaded onto rail cars.
Languages: English
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My Pyramid #1: Choosing Nutritious Food and Healthy Activities
What is Food? Drawing on prior knowledge our young nutritionist leads kids on an exploration of nutritious foods, healthy activities and appropriate serving sizes. They’ll learn to classify and compare foods by nutritional value and food group. Students will prepare attractive examples of healthy meals and snacks and practice making healthy choices when eating out! Label reading skills are introduced so, after viewing, students will be ‘certified hidden fat and sugar detectives.’ The new food guide, MyPyramid, comes alive with animated elements that children will remember and apply in habits for a healthy lifestyle.
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Efficiency of Energy Conversions
Investigates mechanical and biological systems to determine and compare efficiencies of energy conversions. Examines real and toy cars, types of electrical power generation, and the packaging of various foods to show how to use efficiency calculations.
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Anthony Holland Presents Shakespeare
This is a great program for people studying Shakespeare and those who enjoy his work. Antony Holland is a veteran British actor who has been performing Shakespeare on the stage since the age of 12. He also directs plays and teaches others at his facility on Gabriola Island.
The video includes Holland performing in an intimate setting and interview clips where he discusses techniques for actors and directors. At 86 years young, Holland brings energy and intensity to a one-man show that is simply a joy to watch. -
Water Through the Ecosystem
Examines how transpiration affects climate. Explores the properties of semi-permeable membranes, and relates these to living cells. Discusses how plants adapt to climate and the effect of large bodies of water on climate patterns.
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Weather Systems
Reveals how the meeting of high and low pressure systems causes unstable weather conditions. Discusses how global conditions affect weather, how data is collected for weather forecasts, and how storm activity can be predicted.
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Harnessing Energy
Investigates several energy-transfer situations that harness energy: wind power, the transfer of potential to kinetic energy of water in hydro-electric production, and the use of fossil fuels to produce steam.
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Safety Matters
Investigates the hazards associated with the handling and disposing of chemicals. Introduces WHMIS labels and Material Safety Data Sheets for common lab chemicals. Explains universal naming systems and how to write word and chemical equations.
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Discovering the Elements
Conducts experiments to establish the physical and chemical properties of a number of representative elements. These elements are then grouped logically, first into metals and non-metals, then into groups based on observation of reactions.
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Water’s Structure
Reveals that water is a polar molecule, attracted to both positive and negative charges. Bohr’s model explains how hydrogen and oxygen form a covalent bond. This leads to a description of how hydrogen bonds give water its extraordinary qualities.