Changes Over Time
Years, Decades, Centuries
Primary & Secondary Resources
100

What do timelines show?

The order in which events happened.

100

How long is a decade?

10 years

100

Name one primary source.

Photograph, journal, letters, photographs

200

Which of the following groups of years are organized in chronological order?

1950,1960,1970,1980

2011, 2001, 2010, 2000

1950,1960,1970,1980

200

Which item is an example of a secondary source?

a journal entry, a textbook, a photograph, a diary

textbook

200

Name one secondary source.

Textbooks, essays, reviews, biographies.

300

What is architecture?

How a building is made or look.

300

What types of events cause the physical features of communities to change over time.

natural disasters, roads built, buildings built, cut down trees.

300

What are primary resources?

Events as they are told/described.

400

What is a community?

A group of people living together in one place.

400

How long is a century?

100 years

400

What are secondary resources?

Second hand descriptions of events.

500

Name 1 way education was different today than in the past.

Many rooms for school, There are many teachers, Students have paper and pencils, Students use books, computers and calculators.

500

How many days are in a year?

365 days

500

Primary sources are usually recorded by who?


people who witnessed or participated in an event.

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