weather
What the air outside is like today or this week: hot or cold, sunny, rainy, snowy or windy.
climate
The usual weather in a place over many, many years.
temperature
How hot or cold something is. We measure it in degrees Celsius (°C).
rainforest
A thick forest that gets a lot of rain. Many rainforests are near the equator and are hot all year.
desert
A place that gets very little rain or snow. Some deserts are hot, and some are cold.
season
A part of the year with its own kind of weather: spring, summer, fall (autumn) and winter.