Lesson 7 Study Guide Gus and Grandpa and the Two-Wheeled Bike Reading Skill: Making Predictions Writing Skill: Reading and Responding to Directions ~Story Vocabulary Words and Definitions~ curve- not straight; rounded coming- arriving somewhere knee- the joint that connects your lower leg to your upper leg laughed- giggled or chuckled million- one thousand thousands idea- a thought world- our planet Earth ~Robust Vocabulary Words and Definitions~ rickety- old and shaky rattling- making short knocking sounds prying- opening with a crowbar or other tool impatiently- upset that you must wait romp- move around playfully defeated- to feel as though you have lost jubilant- feeling joyful and helpful master- learn to do something well