A worksheet aimed at 14-18 year olds that provides a comprehension activity on the story of Typhoid Mary - a good example of how compelling evidence was used to identify and isolate the cause of an infectious disease over one hundred years ago.

A resource aimed at GCSE or Advanced Level Biology students that introduces the concept of pathogens, mechanisms of disease and non-specific defence mechanisms including barriers, inflammation and phagocytosis. The activity is part of the DRAW IT! series of tasks which serve as a great way of getting students to understand a lot of complex information quickly. The class is split into two, with one half receiving written descriptions and being required to draw illustrations for each piece of information; meanwhile the other half of the class receives the illustrations and is required to write written descriptions. After both sides of the class have finished (or after a pre-determined time interval has passed), each student should be paired up with someone who has completed the opposite task to them. They then spend a brief period of time verbally summarising each process to each other. Finally, a class discussion is held between students and teacher, with questioning used to check understanding and a breif summary produced on the main board.

A worksheet aimed at biology students, this resource is designed to practice calculation of percentage changes and designing control experiments for biology investigations. Both skills are often demanded of biology students in examinations and they both tend to be skills that often pose difficulties.

A resource that provides clear, bullet point facts about the mechanisms behind coronary heart disease and various lung diseases including tuberculosis, asthma, emphysema and pulmonary fibrosis. Additional worksheets are included which provide a list of question prompts for students to research - the answers are given in the original summary worksheet, allowing this resource to be used as a teaching/research activity as well as a simple revision guide

A worksheet aimed at advanced biology students, this resource focuses on the five criteria (Koch's postulates) required for establishing whether a given factor is a causation of a lifestyle disease. The worksheet includes various graphs from different studies, with students required to comment on the evidence that they provide.

A worksheet which gives very clear instructions for the construction of a good quality table of data, as required by most exam boards. The worksheet includes an example of a high quality table and an exercise which requires students to criticise a poorly constructed table.

A worksheet aimed at advanced biology students that introduces the concept of disease. The worksheet covers categories of disease (e.g. infectious, lifestyle, inherited), examples of disease, mechanisms of infectious disease, interfaces for pathogens and interpretation of epidemiological patterns.

Science students often struggle to understand the concept of a control investigation, something which is regularly examined by most exam board specifications. This worksheet explains clearly what a control investigation is and then provides several practice investigations which require students to describe a suitable control. Finally, the worksheet provides an extra 'challenge' question for more able students to describe how control experiments were important in establishing the germ theory of disease and debunking the myth of spontaneous generation.

A worksheet aimed at advanced biology students that reviews the causes, mechanisms and treatment of cholera. Useful as a starter or plenary activity following a lesson on this topic.

Biology students often struggle to calculate rates of reaction from graphs. This worksheet provides an explanation of how to calculate rates of reaction from graphs followed by two practice examples. This is a useful worksheet to use as preparation for any practical investigation that will require this skill with data analysis.

A worksheet aimed at advanced biology students which reviews transport of molecules and ions across a cell membrane. The questions include matching definitions of passive and active transport, predicting which molecules or ions can penetrate a plasma membrane and a review of Fick's law. The resource is useful as a starter or plenary activity at the end of a topic on cell membranes and transport.

A worksheet designed for advanced level biology students that provides a quick quiz of fifteen questions related to the function of different cell organelles. This would be useful as a starter of plenary activity at the end of a topic on cell organelles or could be used as a quick research task using textbooks at the start of the topic. Answers to each question are provided.

A worksheet aimed at advanced biology students consisting of a lengthy passage of text on the topic of passive and active transport. The passage requires key words to be added in the appropriate places. Once complete, students have a written record summary of both passive and active transport processes. This is a good activity to complete at the end of this topic and reinforces key words and vocabulary with students. Suggested answers to each missing space are given at the end of this worksheet

A worksheet aimed at biology students aged 14-18 years, this resource provides a series of prompts and questions to help students plan an investigation into osmosis. The practical investigation is a classic one involving potato chips and different concentrations of sucrose solution - the worksheet asks students to consider the variables involved, the range and concentrations of sucrose solution required and then asks students to produce a written plan based on these considerations.

A worksheet aimed at advanced level biology students, this resource has a series of questions that require students to calculate water potential values in order to predict the direction of water movement between different cells. The worksheet also has diagrams of both animal cells and plant cells showing water movement in, out and no net movement - students are required to match each diagram to the circumstance that would cause each effect. A useful worksheet to review understanding of the key ideas involved with osmosis

A worksheet aimed at advanced level biology students, this resource requires students to calculate the magnification of a mitochondrion by making simple measurements and unit conversions. The final questions are 'challenge questions' that require deeper thought: why mitochondria are required for every cellular activity, the raw materials needed by a mitochondrion and the resolution required to observe mitochondria using a TEM. This worksheet is a useful starter or plenary task to review a previous lesson on these topics.

A resource aimed at advanced biology students, this worksheet contains question requiring students to convert measurements between millimetres, micrometres and nanometres; the final two questions require students to make measurements in order to work out the magnification of a louse and the real size of a red blood cell. This worksheet is ideal as a starter activity to recap a lesson on magnification and units of measurement.

A collection of four worksheets aimed at advanced biology students. The first two worksheets require students to suggest appropriate units of measurements for typical investigations and then introduce the idea of converting between millimetres, micrometres and nanometres - an important skill that is required on most exam papers. The last two worksheets require students to practise their skills in making measurements and calculating magnification of cell images and diagrams, including the use of a scale bar.

A worksheet aimed at advanced biology students, this resource contains a number of exercises that require students to make measurements from diagrams and calculate magnification. The exercises also require changing the subject of the magnification formula to work out real size of cells and using a scale bar to calculate magnification. Finally. there are questions about the nature of magnification and resolution and the electron microscope.

A worksheet aimed at advanced level biology students which serves to review the reasons for the hydrophilic/hydrophobic nature of phospholipids. The worksheet also contains simple matching tasks for the name of a component in the fluid mosaic model and its function.