Key Stage 3 Revision websites
Key Stage 3 Revision links
https://www.bbc.co.uk/bitesize/subjects/PSHE and Citizenship
German (Please see German
Especially good for maths and computing for all ages but other subjects at Secondary level. Note this uses the U.S. grade system but it's mostly common material.
Free to access 100s of courses, only pay to upgrade if you need a certificate in your name (own account from age 14+ but younger learners can use a parent account).
For those revising at GCSE or A level. Tons of free revision content. Paid access to higher level material.
Free taster courses aimed at those considering Open University but everyone can access it. Adult level, but some e.g. nature and environment courses could well be of interest to young people.
https://blockly.games Learn computer programming skills - fun and free.
https://scratch.mit.edu/explore/projects/games/ Creative computer programming
https://ed.ted.com All sorts of engaging educational videos
National Geographic Kids
https://www.natgeokids.com/uk/ Activities and quizzes for younger kids.
https://www.duolingo.com Learn languages for free. Web or app.
https://mysteryscience.com Free science lessons
The Kids Should See This
https://thekidshouldseethis.com Wide range of cool educational videos
https://thecrashcourse.com You Tube videos on many subjects
Crash Course Kids
https://m.youtube.com/user/crashcoursekids As above for a younger audience
https://www.crestawards.org Science awards you can complete from home.
https://idea.org.uk Digital enterprise award scheme you can complete online.
Paw Print Badges
https://www.pawprintbadges.co.uk Free challenge packs and other downloads. Many activities can be completed indoors. Badges cost but are optional.
https://www.tinkercad.com All kinds of making.
https://www.prodigygame.com Is in U.S. grades, but good for UK pupils too!
https://naturedetectives.woodlandtrust.org.uk/naturedetectives/ A lot of these can be done in a garden
https://www.britishcouncil.org/school-resources/find Resources for English language learning
Big History Project
https://www.bighistoryproject.com/home Multi disciplinary activities.
https://world-geography-games.com/world.html Geography gaming!
Blue Peter Badges
https://www.bbc.co.uk/cbbc/joinin/about-blue-peter-badges If you have a stamp and a nearby post box.
The Artful Parent
https://www.facebook.com/artfulparent/ Good, free art activities
https://toytheater.com/ Educational online games
DK Find Out
https://www.dkfindout.com/uk/?fbclid=IwAR2wJdpSJSeITf4do6aPhff8A3tAktnmpaxqZbkgudD49l71ep8-sjXmrac Activities and quizzes
https://www.twinkl.co.uk This is more for printouts, and usually at a fee, but they are offering a month of free access to parents in the event of school closures.