I wrote this worksheet for a KS3 Chemistry lesson on particles. It is a standard dilutions practical. I wanted to see if my students could follow written instructions without any demonstration. We had done several lessons on particles, so they had enough science in order to be able to explain what was happening. You need a concentrated solution of potassium permanganate for this experiment rather than crystals. Explain what you are doing with it and your lab. tech. should be able to supply an appropriate quantity and concentration. The final dilution should be barely observable. Remember that each group only needs 1ml so the total amount for a class will only be in one small beaker. You need to do your own risk assessment but remember eye protection must be worn. Tip: you will find it easier to control if students use 1ml pipettes instead of the standard 3ml. Another tip: keep the concentrated solution with you at the front with one pipette. If each group sends a student to you with an empty test tube you can ensure that it is measured accurately. They then take theirs back to their bench and add 9ml water to it for their first dilution.

This is not an original idea. Plenty to read about it on-line. But I put this slide together to use as a template. Just change the word in the middle and print off.

Written for GCSE AQA Trilogy Biology paper 1 Higher. Useful in a mixed ability class for the students who will be doing higher paper. All information is on the work sheet so higher students should be able to work through this on their own or with little teacher input. Need to have completed work on photosynthesis and limiting factors. Mark scheme included.

This uses an AQA exam question. I broke this question down to explain how I would go about answering it. I always say how important it is to study the information at the beginning of a question before you read any part of the question itself. I show slide 1 then I get students to divide a page in their exercise book into 4 quarters and draw a quick sketch diagram of each cell with room below to write. Then I get them to identify the parts of each cell and also what each cell is missing. Then we discuss what each cell is and identify the reasons for each answer. Working through the next 5 slides adding to their notes if they miss any important points. Lastly I go through the questions themselves on the last slide. Parts 1.1 and 1.2 will already have been identified but there may still be discussion around the reasons used. Part 1.3 may need revision of the terms eukaryote and prokaryote before the answer can be found. Part 1.4 uses the equation for magnification. Encourage students to use calculators to check their answers. (Calculators are allowed in science exams so why not use them as it is so easy to make silly mistakes under the pressure of exams.) May need to revise relative sizes of millimetres and micrometres.

These are the 6 specialised cells identified in the AQA Trilogy specification. Work sheet contains pictures and names just add functions. Differentiate by asking some students to identify the adaptations that help the cells carry out those functions.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video, so 20 questions roughly one a minute. Can be answered on the sheet with (mostly) single word answers. Aimed at KS3. Answer sheet included.

Visual aid to teaching about safety at the start yr7. Includes the new hazard symbols.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video, so 20 questions roughly one a minute. Can be answered on the sheet with (mostly) single word answers. Aimed at KS3. Answer sheet included.

Useful intoduction to Periodic table and how it fits together. Two versions on separate sheets within spreadsheet; first 10 elements; first 20 elements. Print landscape. Carefully cut into 3 strips. One per student to stick inside cover of exercise book.

Lesson presentation to work through in class with an accompanying worksheet. Answer sheet also supplied.

Consolidation of scientific vocabulary. GCSE written for AQA Trilogy. Will fit onto a single page in an A4 exercise book. Answer sheet also included.

Consolidation activity / plenary / revision / science literacy / compiled with GCSE AQA Trilogy in mind. Made to fit on one page A4 exercise book. Cut into 12 squares and resort to match words to meanings. Correct version supplied.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video. Can be answered on the sheet with (mostly) single word answers.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video. Can be answered on the sheet with (mostly) single word answers.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video. Can be answered on the sheet with (mostly) single word answers.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video. Can be answered on the sheet with (mostly) single word answers.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video. Can be answered on the sheet with (mostly) single word answers. Answer sheet also included.

Watch video (find on YouTube) whilst answering questions. Approx. 20 mins video, so 20 questions roughly one a minute. Can be answered on the sheet with (mostly) single word answers. Aimed at KS3. Answer sheet included.

Consolidation of scientific vocabulary. GCSE written for AQA Trilogy. Will fit onto a single page in an A4 exercise book. Answer sheet also included.

Lesson slides, instructions and templates to sit under a petri dish. Written for a classes doing GCSE AQA Trilogy.