Record your observations on the changes in nature in each season and prepare a weather observation diary.

Season is the changes in weather, ecology and amount of daylight throughout the year. Factors responsible for occurrence of season are revolution of earth, tilt of earth’s axis, parallelism of the earth’s axis and apparent movement of the sun. The different seasons are winter, summer, spring and autumn. Change in season causes great change in the world.

Different observations on the changes in nature in each season are described as:

1. Spring Season: Spring is the season of transition from winter to summer. The days grow longer, temperatures rise and plants begin to bud and start their life cycles again. Birds build nests, find mates and start their breeding seasons. Insects hatch and begin to feed.

2. Summer Season: It is the warmest season in the Northern Hemisphere. Plants grow and provide food for herbivores. Summer is when all animals, including humans, take advantage of the warmer weather to eat fresh foods. Human grow the fresh food we will eat all year.

3. Autumn Season: In this season leaves of deciduous trees change colour and drop off. Days continue to grow shorter. Plant cycles end. Animals migrate south or prepare for winter sleep. Some animals grow warmer fur or feathers.

4. Winter Season: This is the season of freezing cold temperatures, snowfall, wind and ice. Many animals hibernate or sleep a lot to save energy. This helps them survive, because it takes energy to stay warm. In winter there are fewer plants.

Weather Observations: Weather observation includes temperature, humidity, precipitation, air pressure, wind direction and wind speed observation which help in predicting the weather. Some of the weather instruments like thermometers, rain gauges and barometers are used to predict the weather.

During summer season very high temperature is seen. Warmer temperatures can hold more moisture than colder temperature so humidity is more in summer. During winter season temperature is very low and less humidity is seen. In spring season temperature is moderate; it is neither too hot nor too cold. Rain is observed during spring season. In autumn season wind speed is high which leads to drop off leaves.