How is plastic recycled?
How are plastic toys made?
What are dioxins? Is it true you can get them from freezing or microwaving plastic?
How are Legos made?
What is rubber made of?
What was the first 3D printing system? Who developed it?
Here are some questions about this topic.
Click the question to read the answer!
Ask another question about this topic!
See a Full List of Topics
© 1999–2014 BrainPOP and related companies. All rights reserved.
BrainPOP is a registered trademark of FWD Media Inc. d/b/a BrainPOP.
For the full list of trademarks referenced on this page, please see
. Your use of the site indicates your agreement to
be bound by our