yr7 years and seasons

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  • Created by: Ellie
  • Created on: 22-04-12 15:00

Years

A planet's year is the time it takes to make one complete orbit around the Sun. The Earth goes once round the Sun in one Earth year. That's 365 Earth days.

We've seen already that that different planets take different lengths of time to orbit the Sun. That means their years are different lengths. Mercury has a year of just 88 Earth days, and Neptune has a year of 164 Earth years.

Seasons

The Earth's axis is tilted (http://www.bbc.co.uk/schools/ks3bitesize/science/images/earth_tilted.gif)

The Earth's axis is…

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