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Controlling variables is important in planning a valid experiment. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Variables are explained through the story of a squirrel and where his nuts are buried.

Learn how computers use variables with this KS2 primary computing guide from BBC Bitesize for years 3 and 4.

Explore how to work out whether two variables are directly proportional with BBC Bitesize Maths. For students between the ages of 11 and 14.

Learn about variables with this KS2 primary computing guide from BBC Bitesize for years 5 and 6.

Learn how to recognise and interpret algebraic notation with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to solve equations with 𝒙 on both sides with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to solve equations with brackets with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to solve equations with fractions with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Drawing and interpreting graphs and charts is a skill used in many subjects. Learn how to do this in science with BBC Bitesize. For students between the ages of 11 and 14.

Learn the meaning of like and unlike terms and simplify algebraic expressions by collecting like terms with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Different types of data need to be presented in appropriate ways. Learn to present types of data with BBC Bitesize. For students between the ages of 11 and 14.

Learn about how to solve simultaneous equations graphically, with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to find both the inputs and outputs of function machines with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn more about scatter diagrams with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to perform order of operations using BIDMAS with BBC Bitesize Maths. For students between the ages of 11 and 14.

Know your way around an electric circuit? Show that you know your series circuits from your parallel circuits with BBC Bitesize.

Following a good method is essential during an experiment. Learn the most important considerations with BBC Bitesize, for students aged between 11 and 14.

Learn how to represent selection in programming in Bitesize KS3 Computer Science.

There are two types of variation - continuous and discontinuous. Find out more with Bitesize. For students between the ages of 11 and 14.

Learn how to represent iteration in programming with Bitesize KS3 Computer Science.

Learn how inequalities are used with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Some objects, like springs, obey Hooke’s law. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Learn about and revise financial terms and calculations in business and with BBC Bitesize GCSE Business – AQA.

Explore how conversion graphs are used to change one unit into another with BBC Bitesize Maths. For students between the ages of 11 and 14.

Recording appropriate data from an experiment is essential to allow valid conclusions to be drawn. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Globalisation is all about building a worldwide network of communication, transportation, and trade. This network connects businesses and people, and spreads technology, language, and culture. This is part of the Learning for Life and Work section of BBC Bitesize Secondary (KS3) level. For more Bitesize content head to bbc.co.uk/bitesize

Learn how to represent sequencing in algorithms with Bitesize KS3 Computer Science.

Learn about bar charts with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Use BBC Bitesize to help with your homework, revision and learning from KS1 to GCSE. Find free videos, step-by-step guides, activities and quizzes.

Learn about the meaning and representation of ratio with BBC Bitesize Maths. For students between the ages of 11 and 14.

During an investigation, scientists draw conclusions and evaluate evidence. Help to develop these skills with BBC Bitesize. For students between the ages of 11 and 14.

Learn how to change the subject of a formula, with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Learn how to simplify terms involving multiplication and division with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

Welcome to Physics KS3 BBC Bitesize. this video is a quick overview of solids, liquids and gases. Learn more on solids, liquids and gases - https://www.bbc.co.uk/bitesize/topics/zkr4jxs/articles/z3qyydm

Frictional forces occur in many different situations. Find out more with BBC Bitesize. For students between the ages of 11 and 14.

Explore how to draw and read graphs that show direct proportion and inverse proportion with BBC Bitesize Maths. For students between the ages of 11 and 14.

To explain observations in science a prediction and a hypothesis are made. Learn how to develop these skills with BBC Bitesize. For students between the ages of 11 and 14.

Write two or more fractions with the same common denominator. Compare and order fractions with BBC Bitesize Maths. For students between the ages of 11 and 14.

Measure the rate of photosynthesis in this experiment with online and lab options. Find out more with Bitesize. For students between the ages of 11 and 14.

BBC Bitesize KS3 Revision Foundation (3-5) Tape 18

This video explains the steps needed to do a chromatography experiment. BBC Bitesize KS3 Science Chemistry - https://www.bbc.co.uk/bitesize/topics/zych6g8/articles/zkqjjsg

Learn about and revise revenue and costs with BBC Bitesize GCSE Business – Eduqas.

Introduction to Human Reproduction.

BBC Bitesize KS3 Revision Foundation (3-5) Tape 18

forces for KS3 activity

Introduction to years and seasons for KS3 physics lessons. This lesson covers how years and seasons occur while the earth spins on its axis. For more reading on the subject click the link below- BBC Bitesize days, months, years and seasons: https://www.bbc.co.uk/bitesize/topics/z8c9q6f/articles/zktckty

Risk-taking behaviour is any action that directly or indirectly has a negative effect on your health, happiness or other people. This is part of the Learning for Life and Work section of BBC Bitesize Secondary (KS3) level. For more Bitesize content head to bbc.co.uk/bitesize

Introducing independent, dependent and control variables.

This GCSE BBC Bitesize video is from the original programmes from 2000 that were broadcast on BBC2. It covers the areas of the Chemistry foundation paper. Select the, "more from," or type jamjarmmx into your search for the other Chemistry clips as well as the physics and Biology clips. The Higher clips are also available from this channel. The ...