Inventions
Select two of the following inventions as the topics for your reports.

1. Adhesive tape
2. Ballpoint pen
3. Bar code
4. Bifocal glasses
5. Blue jeans
6. Braille
7. Can opener
8. Carbonated water
9. Cash register
10. Cellophane
11. Cellular phone
12. Chocolate chips
13. Coca-cola
14. Cotton candy
15. Cotton gin
16. Crayons
17. Dishwasher
18. Disposable diaper
19. Electric Iron
20. Escalator
21. Fountain pen
22. Gas mask
23. Geiger counter
24. Hot-air balloon
25. Kool aid
26. Lawn mower
27. Life savers
28. Light bulb
29. Mayonnaise
30. Microwave oven

31. Morse code
32. Motorcycle
33. Paper clip
34. Peanut butter
35. Piano
36. Plasma
37. Popsicle
38. Potato chips
39. Pushpin
40. Q-tips
41. Radio
42. Razor scooter
43. Rubber band
44. Safety matches
45. Safety pin
46. Sandwich
47. Saxophone
48. Sewing machine
49. Slinky
50. Teabag
51. Telephone
52. Toilet paper
53. Typewriter
54. Vacuum cleaner
55. Velcro
56. Windshield wiper
57. World wide web
58. Zipper