1) what do gears helpWhat do gears help us do? a) Cook food. b) Watch TV. c) Move things more easily 2) What is a pulley used for? a) Writing. b) Lifting heavy objects. c) Painting. 3) What are the teeth on a gear used for? a) Chewing food. b) Making another gear turn. c) Brushing teeth. 4) How many bones are in a normal human hand? a) 37 bones. b) 27 bones.  c) 32 bones. d) 19 bones. 5) What is the name of the bones in your wrist? a) Phalanges. b) Ulna bones. c) Metacarpals. d) Carpals. 6) Which part of your thumb has only TWO bones, while other fingers have THREE? a) The phalanges b) The metacarpals. c) The radius bones. d) The carpals.

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