Mysterious Chemical X grows plants curiously fast - prank!

Step 5 Administer the "Chemical X"

Now's the time if you haven't all ready to bring out the chemical X.

1. Bring out the bottle and explain that you found the ingredient list on the internet.  Talk about how it is technically illegal except for scientific purposes.  This will amp up the "ooooh forbidden" factor. 
2. Give them some safety glasses to wear for show, maybe even some gloves. 
3. We simply dipped a chop stick in the chemical X and dripped it onto each planted seed.  An eye dropper would have been so much better, but... couldn't find one.  Oh well...
4. Give the tray a good water spritzing with the spray bottle, put the lid on and place in a warm bright location.  After have them write up a couple signs to say what the seeds are, have them put it on the corresponding seeds, later these will become part of the trick.
5. Send you mark off too bed if late enough, we did this at around 11:00 pm so...yeah