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.
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Teacher Demo: Photosynthesis and Respiration: Complementary Processes
Categories: Teacher Demonstration
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
Season Wars
Categories: Lab/Student Activity
The students and teacher will go for walks around the community in different months looking at how habitats change in each season and the response of the animals that live there. Discussions will... read more
Teacher Demonstration: Thinking about the Movement of Water
Categories: Teacher Demonstration
The distinction between diffusion and osmosis is not clear to many students. Observing coloured particles (such as food dye) diffuse in water shows direct evidence of diffusion, but the movement of... read more