1. Rube Goldberg You will design a device with at least 10 steps and 4 different simple machines. It will be labeled and come with an explanation of each step. It will be colored. You may choose your own idea or: how to get dressed in the morning, how to comb your hair, how to check the mail

2. b 1. Turn the hand-powered "generator" 2. Motor lifts dog house 3. Gear dog walks out of house 4. Triggers mousetrap 5. String on mousetrap spins gears 6. Paperclip from gears releases bag of balls 7. Bag pushes on lever 8. Lever releases pink ball 9. Pink ball triggers mousetrap 10. Mousetrap pulls nail from yellow stick, dropping a weight 11. String on weight pulls lever up 12. Lever releases golf ball 13. Golf ball bumps ball down staircase 14. Ball bumps tinkertoy sticks 15. Magnetic ball rolls slowly through copper pipe 16. Lands in basket and pushes down lever 17. Another lever sets off mousetrap 18. Mousetrap triggers Gauss Rifle (magnetic propulsion) 19. Magnets travel uphill, releasing last one through yellow tube. 20. Hits a set of marbles, that roll down the "pinball machine" 21. Marbles knock over blue lego piece 22. Lego triggers mousetrap number four 23. Mousetrap pulls plug from bottle, releasing sand 24. Weight of sand (eventually) turns on switch 25. Switch powers motor that spins bingo cage. This releases a ball to pick the winner! Rube Goldberg contest

3. Flame from lamp (A) catches on curtain (B) and fire department sends stream of water (C) through window. Dwarf (D) thinks it is raining and reaches for umbrella (E), pulling string (F) and lifting end of platform (G). Iron ball (H) falls and pulls string (I), causing hammer (J) to hit plate of glass (K). Crashof glass wakes up pup (L) and mother dog (M) rocks him to sleep in cradle (N), causing attached wooden hand (O) to move up and down along your back

4. This cartoon, showing a machine that helps a numbskull become an engineer, was drawn for Purdue students by Rube Goldberg in the early '50s. According to Goldberg: Seal balances ball and applauds self, causing string to start one-man band. Co-ed, hearing music, does Charleston, kicking over oil lamp and burning string, dropping basketball on switch, which starts atomic machine, lifting numbskull so he can crib answers and become a successful engineer