1. cook food // 2. heat // 3. light

1. move heavy things // 2. gears // 3. clocks

1. grow food // 2. make houses // 3. cook

1. tell time // 2. telephone // 3. page numbers in books

1. books // 2. letters // 3. mail addresses

1. books // 2. calendars // 3. food packages

1. heat // 2. technology // 3. light bulb

1. work at night // 2. work inside // 3. computer screens

1. share ideas // 2. connect the world // 3. look up information

1. computers // 2. phones // 3. keyboards

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How do we use these things?

Term	Definition
fire	1. cook food // 2. heat // 3. light
wheel	1. move heavy things // 2. gears // 3. clocks
hand tools	1. grow food // 2. make houses // 3. cook
numbers	1. tell time // 2. telephone // 3. page numbers in books
writing	1. books // 2. letters // 3. mail addresses
printing press	1. books // 2. calendars // 3. food packages
electricity	1. heat // 2. technology // 3. light bulb
light bulb	1. work at night // 2. work inside // 3. computer screens
computer	1. share ideas // 2. connect the world // 3. look up information
wireless technology	1. computers // 2. phones // 3. keyboards

Created by: mrs.chips

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