Skip to main content

Make your own secret ink!

205,938 Views

2,130 Questions Answered

Best of Web

Let’s Begin…

Chemical reactions occur all around us, but they only occur under particular circumstances. What causes a chemical reaction? What must be present for a chemical reaction to occur? Let's find out together!

Additional Resources for you to Explore

Learn more about why chemical reactions occur by watching "What Triggers a Chemical Reaction". Was the secret code an exothermic or endothermic reaction? How do you know?Did you know there are different kinds of chemical reactions? Watch this video and then think about if the secret code was a chemical or physical change!Besides being a really cool way to write secret messages, why else do we care about chemical reactions? Check out this video and think about how chemical reactions can help us with the future of our world.

Next Section »

About TED-Ed Best of Web

TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.

Meet The Creators

More from Actions and Reactions