This protocol allows students to demonstrate and test Koch’s Postulates using apples infected with the fungus Penicillium expansum. The required experimental work extends over 3 to 4 weeks, but the essential steps can be demonstrated in a single practical session if students are provided with cultures and infected...

This mystery can be used to introduce osmosis and diffusion. 

Two beakers are displayed at the front of the room. Both look identical in that they both contain a plastic zip--lock bag with a starch solution inside. The zip-lock bags are both sitting in a clear solution. What the students don’t know is that...

Light is one of the titles in the series of ASE Lab Books that were published in the early 1970s for the Association for Science Education by John Murray. Each title covered one or two topics and brought together the best of the teaching notes and experimental ideas...

The best school environments give an impression of liveliness, with attractive spaces and a general feeling of pleasantness which it is difficult to define. There can be no doubt that in these cases the surroundings contribute to the happiness and well-being of teachers and pupils, and that lighting plays a...

Produced by Solar Spark, this activity allows students to make a photovoltaic cell in the school laboratory. A solar cell uses light from the sun to produce electricity. A type of solar cell, called a dye-sensitised solar cell (DSSC), can be made. This type of cell is cheaper than other solar cells, and is now...

This Unilever Laboratory Experiment, published in 1966, demonstrates that mineral oil and water form an oil-in-water emulsion when sodium oleate is the emulsifier, and a water-in-oil emulsion when calcium oleate is the emulsifier. Water-soluble and oil-soluble dyes are used to distinguish the two types of emulsion...

Could there be life on Mars? Perhaps so, although the high intensity of UV light means that it is unlikely to be found on the surface. The experiment demonstrates how bacteria grown on agar plates can be killed off by UV exposure. Curriculum areas covered: • Microbiology • Cell biology • Aseptic technique The video...

This resource looks at how cutting edge science is being used to answer archaeological questions, as well as solving present day problems, such as the identification of meat in processed foods. Analysis of mitochondrial DNA was performed, at the University of York, on samples from skeletal remains unearthed by the...

One of a series of resources from Science & Plants for Schools (SAPS) investigating key topics in plant biology. A reliable way to demonstrate photosynthesis in the classroom. When the pond-weed Cabomba is placed in a solution of sodium hydrogen carbonate in the presence of light of appropriate intensity, it...

Mechanics and Properties of Matter is one of the titles in the series of ASE Lab Books that were published in the early 1970s for the Association for Science Education. Each title brought together the best of the teaching notes and experimental ideas from members of the...