Chemistry
Why does salt make ice melt faster?
Quick fact
Adding salt to ice causes a phase change, melting the ice and creating a brine solution.
Why this is interesting
Have you ever noticed how salt makes icy sidewalks less slippery?
Follow your curiosity
What discovery has been shared with you?
FACTREE gives you something interesting to discover every day — and something worth talking about together.
Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.
Choose subjects for a surprise
Exploring any topic
Begin your discovery
Your next discovery is one click away.
Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.
Continue with your current subject selection?
A little curiosity, delivered
Let a fact find you.
Receive the title, Quick Fact and Why this is interesting. If it catches you, open it to continue your current FACTREE journey and explore the rest.
Email delivery is currently in private preview.
Email preferences
Stop FACTREE emails?
Confirm below and FACTREE will stop sending your subscribed facts immediately.
Email preferences updated
You’re unsubscribed
You will no longer receive FACTREE facts at .
Subjects · study & training · careers
What would you like to explore?
Choose something you are considering. FACTREE will give you a clear picture of what it contains, how its main parts connect and where it could lead.
This private catalogue connects 31 subjects, study routes and careers across six broad areas. Public Maps and learner routes remain off.
Browse subjects
Choose a subject
Open a subject to see its complete shape at a glance. You can always return here and choose something else.
Programming
See what programming involves, how its main areas connect, and whether you find the knowledge interesting enough to take it further.
Structuring the Programming Map…
Complete subject map
Programming
Move from the one-screen overview into all 19 areas. Open any area, compare possible Paths and return to the overview whenever you want.
Loading the complete Programming Map…
Curiosity quiz
What do you already know?
One question at a time. A wrong answer is simply another way into something worth knowing.
Finding a question for you…
Administrator
Manage FACTREE.
Review learner demand, card visibility and private knowledge-architecture evidence.
Knowledge architecture
Discovery coverage workbench
This background view organises existing cards. It is separate from the authored lessons above.
Topic demand inbox
Review public suggestions and repeated searches. Approval alone does not add generator tasks.
Card visibility
Hide a published card reversibly, then optionally queue it for a reviewed merge or permanent retirement.
Curriculum coverage
Choose a subject
0%available now
Discovery cards in this subject
Continue exploring
Private curriculum tools