This demonstration will help students understand what is required for an image to be formed by a lens. As well, it will help to diagnose possible misconceptions about image formation.
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Teacher Demonstration/Student Activity: Additive Colour Theory - Spinning Colour Tops
Categories: Lab/Student Activity, Teacher Demonstration
A circular disc is made with two or more colours of the visible spectrum in equal area sectors. The disc is spun and a different colour appears. read more
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The cells of green plants contain the pigment chlorophyll in organelles called chloroplasts. Chloroplasts capture the Sun’s energy and store it―through photosynthesis―as chemical energy. The... read more
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Categories: Teacher Demonstration
In this demonstration, a chemical reaction is used to make a hidden message visible. The demonstration illustrates an entertaining application of chemical reactions in toys and everyday objects. It... read more