Magic Density Wand
Idea & Physical Concepts
This is a glass tube filled with four equal volumes of different colored liquids (water, corn syrup, oil, and vinegar) and an equal volume of air. There will also be glitter in it. When shaken, the colors would mix for a minute or two and then separate themselves. This would give children an introduction to density.
Production & Sales
This is a very easily made toy. All of the liquids are relatively inexpensive. The glass would be made to be durable, as to prevent it from breaking. It could retail for about $3. I dont think that any child could injure themselves too badly with this, so I'll say its for ages 3 and up.
Andrew's 39-245 Home Page
Concept 1: Marble Roller Coaster Racer
Concept 2: Magic Density Wand
Concept 3: Light-Up Top
Andrew Brodlieb