Learn more at http://www.stevespanglerscience.com/experiment/secret-message-heat-friction-ink Give that special someone a note that requires the heat of a romantic candle to decode the message. You won't believe what the ink in this pen will do. Your message can appear or vanish on command... and most people don't even know that the ink works this way.
Want more experiments like this? Check out http://www.stevespanglerscience.com/product/fire-bubbles-exploding-toothpaste-book
Sick Science™ is a trademark of Steve Spangler, inc.
© 2011 Steve Spangler Science all rights reserved
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Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes