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from Global Thinkers: Social Science 4. Primary (sample), page 9

Article from: Global Thinkers: Social Science 4. Primary (sample)
ThE pLaNeTs

Refresh Does the Earth stay in the same place in space?

11 How does the Earth move?

The Earth revolves around the Sun. It takes 365 days and six hours (one year) to complete a full revolution.

The Earth also rotates on its axis. It takes 24 hours (one day) to complete a full rotation. Because of this rotation, the Sun illuminates some places of the Earth and leaves others in darkness, causing day and night.

1 How does the Earth move? Demonstrate with a partner. Which movement takes longer?

2 Which movement causes day and night?

3 Find out what a leap year is. Why does it occur?

Language Bank

Verbs and nouns revolves (verb) revolution (noun) rotates (verb) rotation (noun)

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Global Thinkers: Social Science 4. Primary (sample)

by Grupo Anaya, S.A.