Mini Black Light & Invisible Marker
Write and read secret messages with this pen and black light combo.
Usually ships out the next day.
Recommend for 6 to 7 years with adult supervision.
DOTD Sold-Out
Great for science experiments with using different lengths of light waves, or as an interesting addition to your next science fair project.
Ultraviolet wavelengths are very long with a very high frequency, and can be used to detect florescent material that would remain invisible under normal conditions. When you shine ultraviolet light on fluorescent material, it lights up with a beautiful bluish-green luminescence.
With the black light pen, you can write invisible messages that will only be revealed under a black light. You can use it to make black light posters or for a demonstration of ultraviolet rays in your next science class. Invisible marker ink can be removed with soap and water. Recommended for children ages 6 and up.
What's included?
- Mini Black Light
- Invisible Pen
- Activity Guide
|
Worked better than expected!
Stacey - May 4, 2011
This kit is great. I plan to use it for a super power-themed event to demonstrate invisibility. The ink is truly invisible after it dries and shows up well under black light, even in a relatively well lit room. |
 |
|
Great Purchase!!!
Matthew Drayer - July 3, 2010
I have really enjoyed this product! I use it for glow in the dark cards and pictures as gifts. Love it! The picture below was made with this product. |
|
|
Related Products
|
Mini Black Light
$4.99 |
|
Invisible Ink Marker
$4.99 |
