This list was generated mainly by Paquita and Kylie on the Unschool Australia online support group. Email Beverley if your kids have any favourites not mentioned here.

• Space Time explores what is beyond, the outer reaches of space
  https://www.youtube.com/channel/UC7_gcs09iThXybpVgjHZ_7g
  
• Nature of PBS brings the wonder of nature to you
  https://www.youtube.com/user/NaturePBS
  
• The Royal Institute - videos to make you think more deeply about science
  https://www.youtube.com/user/TheRoyalInstitution
  
• The Backyard Scientist loves to explore and experiment all things scientific!
  https://www.youtube.com/user/TheBackyardScientist
  
• Crash Course covers a range of different subjects
  https://www.youtube.com/user/crashcourse
  
• Sci Show Kids explores curious topics that make kids ask "why?"
  https://www.youtube.com/user/scishowkids
  
• Smarter Every Day explores the world using science.
  https://www.youtube.com/user/destinws2
  
• Slo Mo Guys take on the world in Slow Motion!
  https://www.youtube.com/user/theslowmoguys
  
• Verastasium includes videos about science and education.
  https://www.youtube.com/user/1veritasium
  
• The Brain Scoop shares soem of the amazing things in The Field Museum in Chicago https://www.youtube.com/user/thebrainscoop
  
• Minute Physics - cool physics and other science simply put.
  https://www.youtube.com/user/minutephysics/
  
• Minute Earth includes science and stories about our planet
  https://www.youtube.com/user/minuteearth
  
• Mindfield intriguing ideas about the mind, brain, psychology, etc
  https://www.youtube.com/user/Vsauce
  
• Vihart explores maths and other interesting things
  https://www.youtube.com/user/Vihart
  
• Domain of Science youtubes about mind-blowing science, especially physics
  https://www.youtube.com/user/dominicwalliman
  
• Deep Look is a science video series that explores big science by going very, very small!
  https://www.youtube.com/user/KQEDDeepLook/
  
• It's Okay to Be Smart uses curiosity to explore the universe
  https://www.youtube.com/user/itsokaytobesmart
  
• Great Big Story discovers the untold, the over-looked and the flat-out amazing!
  https://www.youtube.com/channel/UCajXeitgFL-rb5-gXI-aG8Q
  
• Animal Wonders Montana is all about amazing animals in their zoo
  https://www.youtube.com/user/Anmlwndrs
  
• Blue World explores the underwater world
  https://www.youtube.com/user/BlueWorldTV
  
• Primitive Technology shows you have to build things in the wild completely from scratch using no modern tools or materials
  https://www.youtube.com/channel/UCAL3JXZSzSm8AlZyD3nQdBA/
  
• Animalogic examines the nature of the beast
  https://www.youtube.com/channel/UCwg6_F2hDHYrqbNSGjmar4w
  
• Nature League explore life on Earth and ask questions that inspires us to marvel at all things wild
  https://www.youtube.com/channel/UCwg6_F2hDHYrqbNSGjmar4w
  
• Science Insider videos on what you need to know about science https://www.youtube.com/channel/UC9uD-W5zQHQuAVT2GdcLCvg/
  
• True Food reveals the untold stories of our food, one crop at a time
  https://www.youtube.com/user/howgrowvideo
  
• The Action Lab, dedicated to performing and explaining exciting science experiments
  https://www.youtube.com/channel/UC1VLQPn9cYSqx8plbk9RxxQ
  
• The King of Random explores life through all kinds of life-hacks, experiments and random weekend projects
  https://www.youtube.com/user/01032010814/
  
• Ted Ed - ideas worth spreading
  https://ed.ted.com/
  
• Brave Wilderness one stop connection to a wild world of adventure and amazing close up animal encounters
  https://www.youtube.com/user/BreakingTrail/
  
• The Kids Should See This smart videos for curious minds of all ages
  https://thekidshouldseethis.com/
  
• Science Max - experiments on a the large scale!
  ? https //www.youtube.com/watchv=iekjlf2stvi
  
• SciFri, brain fun for curious people: science, technology and other cool stuff
  https://www.youtube.com/user/SciFri/
  
• Periodic Videos - ultimate channel for all things chemistry
  https://www.youtube.com/user/periodicvideos
  
• BBC Earth the official channel of Sir David Attenborough, dramatic, rare and wild nature!
  https://www.youtube.com/user/BBCEarth/
  
• Big Think is expert-driven, actionable, educational content exploring big ideas and core skills
  https://www.youtube.com/user/bigthink
  
• Today I Found Out - something new and interesting every day
  https://www.youtube.com/user/TodayIFoundOut/
  
• The Good Stuff mini-documentaries intertwining education, entertainment and curiosity
  https://www.youtube.com/user/TheGoodStuff/
  
• Museum of London tells the story of London, it's people, from prehistoric times to the present day
  https://www.youtube.com/user/museumoflondon
  
• Google Arts and Culture explores inspirational moments, iconic people and artistic wonders
  https://www.youtube.com/user/GoogleArtProject/
  
• Brightside attempts to answer some of life's biggest questions!
  https://www.youtube.com/channel/UC4rlAVgAK0SGk-yTfe48Qpw
  
• Ted - EDKIDS
  https://www.youtube.com/playlist
  
• Natural History Museum in London - explore behind the scenes in this famous museum
  https://www.youtube.com/user/naturalhistorymuseum
  
• Life Noggin a webshow designed to teach about life and the brain
  https://www.youtube.com/user/lifenoggin
  
• Science Museum weekly uploads of stories of human ingenuity, renowned collections, exhibitions and behind the scenes footage of the museum
  https://www.youtube.com/user/sciencemuseum
  
• Tom Scott explores the weird and interesting
  https://www.youtube.com/user/enyay/videos