Learn Pearson Edexcel IGCSE Biology online. Revise it by playing.
265 short lessons that follow the Pearson Edexcel 4BI1 specification. Every lesson comes with its own quiz, a quiz show game and a zombie defence game, and there are 4,419 flash cards and 10 3D Biology games too.
- Covers the Pearson Edexcel 4BI1 specification, topic by topic
- Games that test what you've just learnt, so it sticks
- A study timetable and progress tracking to keep you on course
for 12 months
See Brainy Lemons in action
100% based on the current Pearson Edexcel 4BI1 specification
Every lesson is written from the Pearson Edexcel specification for exams in 2026-2029. It teaches everything you need to know for the exam, topic by topic, in short lessons you can finish in one sitting.
- All 5 themes and 24 topics, in the same order as the specification
- 265 lessons of about 30 minutes each
- About 130 hours of recommended study time in total, set by the exam board, including games, quizzes and revision
- Clear explanations with diagrams, pictures and videos
- Key words and exam tips to help you pass
A plan that gets you to exam day
Tell us when you want to finish and we plan every lesson for you, week by week. Then track your progress and see exactly what to revise.
A study plan that fits your life
Pick your finish date and your timetable plans your lessons week by week, leaving time to revise before the exam.
- One-year or two-year plans
- Fits around school, work or home education
- Time left for revision before the exam
Know exactly where you stand
Your dashboard shows lessons done, quiz scores and the topics that need another look.
- Scores for every quiz
- Spot weak topics early
- Great for parents to check in
See exactly what to revise
After every quiz you see each question, your answer and the right one, so you know what to go back over before the exam.
- The right answer for every one you missed
- Go back to any lesson, any time
- Spot weak topics before the exam
Learn it. Test it. Play it. Remember it.
Reading something once isn't enough. The way to remember it for the exam is to keep pulling it back out of your head. So every Biology lesson comes with lots of fun ways to do exactly that.
Learn
A 30-minute lesson on one part of the specification, with pictures, videos and clear explanations.
Test
A quiz straight after shows what's gone in, with the right answer the moment you get one wrong.
Play
Lemonaire and Last Stand turn the same lesson into a game, so you answer the questions again (and again) because you want to win.
Remember
Flash cards bring each idea back just before you'd forget it, until it's locked in for the exam.
Every question, card and game is written from the lesson, so it all follows the Pearson Edexcel 4BI1 specification. No random trivia.
Who Wants to Be a Lemonaire?
Lights, music and a host who talks to you. Zane Zest asks questions on the lesson you've just done, and you climb the Lemon Tree to a million lemons. Use 50:50, Phone a Friend or Ask the Audience if you're stuck.
Why it's fun
- A proper quiz show studio with a theme tune
- Three lifelines and a phone-a-friend
- Take the lemons or risk it all
- Beat your best score
How it teaches
- Every question comes from the lesson
- Starts with true or false, then builds up to four options
- Get one wrong and Zane shows the line from the lesson that explains it
Last Stand: they want brains. Use yours.
A 3D tower defence game. Build gun towers, snipers and tesla coils to stop the horde reaching your bunker. The catch? The scrap you build with comes from answering questions on the lesson.
Why it's fun
- A 4-level story with survivors and a boss
- Airstrikes, orbital lasers and flashbangs
- Recruit, Soldier and Veteran levels, with 3 stars to win
- Blitz mode for a quick 2.5-minute game
How it teaches
- Knowing the lesson is how you win
- "Urgent intel" questions pop up mid-battle against the clock, like exam pressure
- Wrong answers show the right one, so you learn as you play
Flash cards that actually test you
Not just flip and forget. Pick how tough: flip and rate yourself, read a clue and type the key word, or explain it in your own words and have it marked.
Why it's fun
- Points, streaks and lives
- Quickfire against the clock, or Endless with 3 lives
- Chilled lo-fi study music
- Swipe through them on your phone
How it teaches
- Pulling an answer out of your head (active recall) is one of the best ways to remember
- Cards you miss come back until you've got them
- Daily Recap brings cards back after 1, 3, 7, 16 and 35 days, just before you'd forget
Check it's gone in, straight after every lesson
Every lesson ends with its own quiz. Pick 12 or 25 questions, Quickfire against the clock, or Endless until you run out of lives.
Why it's fun
- Points, streaks and sound effects
- Easy, Medium or Hard
- Stars for your best score
How it teaches
- You find out what you don't know straight away
- The longer modes mix in earlier lessons from the same topic, so older ideas keep coming back
The tricky topics, turned into 3D games
Some ideas are much easier to understand when you can see them move and try them yourself. These games were made for the Pearson Edexcel 4BI1 specification topics students find hardest. Try them now, free.
Free to play
MRS GREN Life Scanner
Load specimens into the scanner and test the seven life processes to decide what is really alive
Play now
Free to play
Mito Rush
Fuel a mitochondrion, race a rival on oxygen without cramping up, bake bread with yeast and sort aerobic from anaerobic respiration
Play now
Free to play
Superbug Lab
Build a 3D bacterium part by part, outswim a phagocyte, split it by binary fission and find out how antibiotic resistance creates superbugs
Play now
Free to play
Cell Forge
Print plant and animal cells to order in an orbiting 3D lab: fit the right organelles before the client gives up, then pass a true or false check
Play now
Free to play
Label Busters
Run the Benedict's test for glucose and the iodine test for starch in a 3D lab, read the colour changes and bust lying food labels
Play now
Free to play
Slice Lab
Slice flying agar jelly so the acid diffuses to the middle in time, then beat cold snaps, heatwaves and weak acid: surface area to volume ratio, distance, temperature and concentration gradient
Play now
Free to play
Bubble Rush
Run the pondweed practical in a 3D lab: move the lamp, tap to count the oxygen bubbles, plot your graph and find the limiting factor
Play now
Free to play
Gut Reaction
Fire amylase, maltase, protease and lipase at food molecules as they travel through the mouth, stomach and small intestine, and squirt bile to neutralise the acid and emulsify fat
Play now
Free to play
Gas Cam
Film a pond from noon to sunrise and snap who is taking in or giving out carbon dioxide: Indicator Vision shows every organism in hydrogen-carbonate indicator colours as the light changes
Play now
Free to play
Second Wind
Breathe for an athlete in a 3D sports lab: read a spirometer, prove you breathe out carbon dioxide with the limewater test, keep the blood gases balanced from rest to a sprint, then analyse your own breathing data
Play nowReviews for Brainy Lemons
Real feedback from parents and students learning with Brainy Lemons.
“We have used you for Marine Science and Geography IGCSE subjects. We were very pleased with both the cost and ease of use of your online learning. We are very happy with the experience and would fully recommend you to others. Thank you.”
Marine Science IGCSEGeography IGCSE“I love Brainy Lemons so much I’ve been recommending it to others. What I found, as a parent, the most useful was the timetable feature. I could put when I wanted the course to finish into the timetable and loved how it worked out a weekly set of lessons. This gave us plenty of time for revision and exam practise and my child went into the exam feeling confident.”
Environmental Management IGCSE“My son is home educated and we signed him up to the Geography and Business courses. We got a discount when signing up for 2 courses and so it worked out really good value for money. My son has found it easy to use just following through the lessons and it really helped to be able to set a deadline to keep my son on track. I would really like to see more subjects and more options to pay where you can spread the cost as being home educated and having to pay for all education yourself can really add up.”
Geography GCSEBusiness GCSEEverything for Pearson Edexcel IGCSE Biology, £84
Every lesson, every game and every tool. No extras to buy.
Full Pearson Edexcel IGCSE Biology course
Pay once and keep access right through to your exams.
What you get
- 265 lessons covering the Pearson Edexcel 4BI1 specification
- 5,100 quiz questions with instant feedback
- Lemonaire and Last Stand on every lesson
- 4,419 flash cards with Daily Recap
- 10 3D Biology games
- Personal study timetable and progress tracking
- Works on phone, tablet and laptop
Good to know
Does it follow the Pearson Edexcel 4BI1 specification?
Yes. The course was planned from the Pearson Edexcel 4BI1 specification so every part is taught, in order. The quizzes, games and flash cards are all written from the lessons, so you only practise what's in the specification.
Are the games really learning, or just for fun?
Both. You can only win by answering questions on the lesson, and every wrong answer shows you the right one. Testing yourself like this is one of the best-proven ways to remember things, and the games mean students happily do a lot more of it.
Who is it for?
Students studying Pearson Edexcel IGCSE Biology at school who want extra help, home-educated students, private candidates and adults going back to study.
What do I need to use it?
Just a web browser. It works on phones, tablets, laptops and computers, so you can study anywhere.
Does the price include the exam?
No. Exams are booked and paid for separately with an exam centre. The course gets you ready for them.
Make Biology revision something you want to do
Start today. Lessons that follow the Pearson Edexcel 4BI1 specification, and games that make it stick.