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CC Ch.5: Our Past, Our Present
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(n) a paper with words on it
document
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(n) something written or made by a person who was at an event
primary source
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(n) electronic mail, or a message sent through a computer
e-mail
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(n) a chart that shows the days, weeks, and months in a year
calendar
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(n) what will happen after today
future
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(n) what has happened before today
past
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(n) a kind of energy
electricity
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(n) the story of people, places, and events from the past
history
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(n) a person who travels to unknown places to find out what is there
explorer
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(v) to divide something into parts that can be counted
measure
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(n) a tool that shows what time it is
clock
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(n) something written or made by a person after an event happened
secondary source
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(n) something that is made for the very first time
invention
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(v) to share information with other people
communicate
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(n) the time that is happening now
present
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(n) the way people move from place to place
transportation
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