National Treasure: can lemon juice and hot breath reveal invisible ink?
On screen chemistry with Jonathan Hare
In National Treasure Benjamin Gates (Nicholas Cage) is the latest in a long line of treasure hunters in his family. They have all been searching for a ‘mountain of treasure’ apparently hidden 100s of years ago by the founding fathers of the USA. Early on in the film Ben’s troubles really start when he learns that the key information he seeks is written in invisible ink on the back of what is arguably the USA’s most important historical document – the Declaration of Independence!
Thanks for using Education in Chemistry. You can view one Education in Chemistry article per month as a visitor.
Register for Teach Chemistry for free, unlimited access
Registration is open to all teachers and technicians at secondary schools, colleges and teacher training institutions in the UK and Ireland.
Get all this, plus much more:
- unlimited access to resources, core practical videos and Education in Chemistry articles
- teacher well-being toolkit, personal development resources and online assessments
- applications for funding to support your lessons
Already a Teach Chemistry member? Sign in now.
Not eligible for Teach Chemistry? Sign up for a personal account instead, or you can also access all our resources with Royal Society of Chemistry membership.