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In the far north, winter can bring a night that lasts for weeks.

In the far north, winter can bring a night that lasts for weeks.

The Sun stays hidden below the edge of the sky for a long time. It stays dark until the Sun peeks back up in spring.

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Many trees drop their leaves in autumn. Many trees drop their leaves in autumn. In spring, lots of baby animals are born. In spring, lots of baby animals are born. Summer days have more hours of sunshine than winter days. Summer days have more hours of sunshine than winter days. Some animals sleep through the cold winter to stay safe. Some animals sleep through the cold winter to stay safe. We get seasons because Earth is tilted as it circles the Sun. We get seasons because Earth is tilted as it circles the Sun.