Across
- 5. the Greeks' chewing gum was made from this tree
- 6. toy created from a pie tin
- 7. the original name for popsicles
- 9. was invented when a spring was knocked over
- 10. this animal helped create velcro
Down
- 1. the number of years it took to patent the laser
- 2. last name of chocolate chip cookie inventor
- 3. three-dimensional wallpaper was called ______ wrap
- 4. helps inventors own their inventions
- 8. invention made to clean wallpaper