Seasons

4. the amount of ___ decreases during the winter in the North, hence some birds migrate.
5. seasons do not change near the Earth's ______.
6. some mammals like hedgehogs spend their winter in ____.
7. ____ birds migrate from place to place in search of food, and won't go to the same routes each year.
8. _____ birds live in the same region the whole year around.
10. the ______ of plants is when the average temperature stays above +5 celcius during the day.
12. in the summer plants have enough sunlight for ____.

1. poikilothermic animals spend the winter in a state of ____.
2. ______ birds make 2 long journeys in a year due to changing seasons.
3. for example the pied flycatcher travels all the way to ____ from Finland for the winter.
8. ___ offers protections to animals from cold air.
9. the first flowers of spring belong to ____ plants.
11. some mammals like bears and badgers spend their in ______.