7 results for 'gold-pennies'
How to Make Gold Pennies
Learn about the science of alloys - copper + zinc = brass
Taco Sauce Penny Cleaner
It's one of those things you hear about but wonder if it's true.
Amazing Projects at Harris Park
Steve Spangler discovered a science gold mine.
The Spinning Penny
Warning: The spinning penny trick is known to be addicting.
Goldenrod Paper Message
Use this special pH paper for some spooky Halloween science
The Coin Drop - Sick Science!
Give the index card a flick and watch as gravity and inertia take hold
Spangler Salutes Pam Sanders
Steve Spangler is joined by students at Superior Elementary.