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Inventions
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 |