These activities from Cre8ate maths explore the efficient use of space in car parks. These are two-dimensional ‘best fit’ problems which require logic and a systematic approach to find effective solutions. They give students the chance to devise and test out strategies using systematic trial-and-improvement...

Several different treatments are used to autolyse yeast cells. The viability of the autolysed yeast is then tested by: plating out on agar; testing for dehydrogenase activity; microscopic examination with methylene blue.

A Year Ten module from the Salters’ double award science course. The first section of the module introduces the formation, composition and structure of the atmosphere. The Sun is our main source of energy. Students consider why sunlight is more intense near the equator...

This chemistry extension module for the Salters’ Science course deals with the nutrients provided by food and their contribution to the diet. It also deals with methods of food processing and preservation. The module begins with a survey of the chemical composition and...

A Year 11 module from the Salters’ Key Stage Four double award science course. This module begins with revision of prior knowledge about stars, planets, moons and other bodies found in space. Students then consider gravity as the force which controls movement of bodies...

In this biology extension module of the Salters’ Science course, an exhibition of foods is used to introduce examples of using microbes in food processing. Students make sauerkraut and learn about the establishment of microbial populations in new habitats. Positive uses...

In this practical protocol students investigate one way in which bacteria acquire antibiotic resistance through conjugation - horizontal gene transfer from one bacterial strain or species to another.

Plasmid-mediated evolution is fast because whole functional ‘modules’ are lost and gained, rather than the...

Cre8ate maths provides these activities which investigate the tessellation of regular polygons and its application in construction. Initially students identify which regular polygons tessellate, providing the opportunity to discuss the interior angles of polygons and...

A Year Ten module from the Salters’ double award science course. The story-line for this unit is the whole world market for manufactured chemicals and the need to transport them safely to where they are needed. This shows the importance of systems which convey concise,...

This Salters’ Chemistry Course unit from the University of York Science Education Group covered:
* The range of properties of chemicals.
* The use of symbols, formulas and balanced equations.
* The commercial importance of chemicals.
* Factors...

Rockets are used to launch satellites, probes and even astronauts into space. A rocket launch is extremely impressive. Thousands of kilograms are burned in just a few minutes in order to provide the force that the rocket needs in order to overcome the gravity of the Earth. Rockets provide an exciting context to...

This Salters’ Chemistry Course unit from the University of York Science Education Group covered:
* The use of fuels in keeping warm
* The chemical changes when fuels burn
* Some consequences of the large scale use of fuels.

A Year 11 module from the Salters’ Key Stage Four double award science course. The breakdown of domestic waste is observed. A text exercises describes the processes used in a waste water plant. Natural cycles, including the carbon cycle and the nitrogen cycle are...

This chemistry extension module of the Salters' Science course revises and extends students’ ideas about the structure and properties of water. It deals with hardness of water, the action of soap and other detergents and properties of emulsions.