This document provides information about weather and climate through several sections:
1) It defines weather as the short-term atmospheric conditions including temperature, precipitation, wind etc. that change frequently. Weather is reported through daily forecasts.
2) Climate is defined as the pattern of weather in a place over a long period (30 years) and influences the wildlife and vegetation. It depends on the typical temperature and precipitation.
3) Key factors that influence climate are identified as seasons, latitude, altitude, distance from large bodies of water. Seasonal changes are caused by the earth's orbit around the sun. Latitudinal changes influence temperature based on proximity to the equator.
2. Table of Contents
Introduction
01
You will learn about
weather and climate in this
lesson
03
You will learn that weather changes
with changing geographical
location
02 04
You will learn that average
temperature and precipitation can
change seasons.
Weather changes
weather and climate Seasons
You will learn difference between
weather and climate
5. Weather is the day to day condition of the
atmosphere of a place.
It is related to the temperature, rainfall,
wind, cloud cover and humidity.
Weather is temporary. It keeps changing
from minute-to-minute, hour-to-hour and
day-to-day.
Weather
6. We often need to know what the weather is
going to be like. Is it going to rain? Is it a
good day to plan a game of cricket?
● Daily weather reports on the radio
and television tell us about the
temperature, rainfall etc. in a
particular area.
Weather reports & Forecast
7. ● Predictions about the weather are
called weather forecasts.
● These forecasts are from
information collected from weather
satellites and weather stations.
It helps farmers to plan when to sow
their seeds and harvest their crops.
They inform sailors and pilots about
storms and other weather conditions.
Weather Forecast
8. Humidity Temperature
The amount of water vapour in the air
is called the humidity. Humidity is
measured by an instrument called a
hygrometer.
Temperature tells us how hot or cold the
atmosphere is. It is measured with a
thermometer.
Components of Weather
9. Precipitation Wind
Rain, drizzle, snow and hail are all different
forms of precipitation. Precipitation is a
part of water cycle and follows
evaporation and condensation.
Moving air across Earth’s surface is called
wind. Wind can bring rain clouds or clear
skies. A light gentle wind is called a breeze.
Wind during a thunderstorm or hurricane
are strong and powerful.
Components of Weather
10. Clouds
Clouds are collections of tiny droplets of water or
ice crystals. These droplets are so light that they
float in the air. Clouds move with the wind.
Components of Weather
Find out about different types of clouds and make a poster.
11. The heat from the sun, temperature, the
movement of air, humidity, rain and clouds
are some of the factors responsible for
weather change.
Cause of
Weather change
12. Afternoons are hot
compared to mornings or
evenings. That is because
the sun is directly overhead
at this time of the day.
Early in the morning and
inn the evening the sun’s
rays are slanting, and so it
is cool.
13. The sun warms the air in different places to
different amounts. When the air in an area is
warmer than the surrounding area, the hot air
above the land rises and cool air rushes to take its
place. This cause movement of air or winds which
lead to changes in weather.
Humidity in the air also affects the weather. It
affects cloud formation can cause rain or snow
Clouds can both cool down or warm up
temperature on the Earth.
14. Climate is the weather pattern in a place over a long
period of time (about 30 years).
Climate
03
15. Climate is important as if affects
the wildlife and vegetation of a
place.
Climate is ‘what you expect’ like
a very cold winter, while weather
is ‘what you actually get’ like a
hot day with thunder showers.
The climate depends on the
temperature and precipitation in
that place, over many years.
16. Different climate
● Deserts are usually warm and dry with
little or no rainfall.
● The north and south pole and the polar
regions are always very cold and
covered with snow.
Scientists fond out the climate of a region by recording the weather
condition over a long period of time.
Climate can change over time. Climate change can be caused by
humans.
18. Seasons Latitude
Weather change with
seasons. This is because of
the movement of earth
around the sun.
The climate of a place
depends on a latitude or the
nearness of the place to the
equator.
Factors Affecting climate
19. Change of seasons in
northern hemisphere of Earth
Season: As the Earth orbits
around the sun, the part of
the Earth facing the sun
experiences a warm
temperature and summer.
Part away from the sun has
cooler temperature and
winter.
20. Change of seasons in
northern hemisphere of Earth
Latitude:
The equator gets the direct rays of the
sun. the sun rays are spread over a
smaller area and son places near the
equator are very warm.
As the Earth surface moves away from
the equator, the rays of sun are spread
over a larger area of land the temperature
falls.
The poles get little or no sunlight and are
the coldest regions.
21. Altitude
Distance from
ocean
Height of a place above sea
level also affect its climate.
A place at higher altitude, or
location will have a cooler
temperature because as you
go higher the air becomes
thinner, or less dense, and
so it absorbs less heat.
Oceans and seas affect the
climate of a place. The
water in the oceans heats
up and cools down slower
than the land. This is why
places located near the
coast are cooler in summer
and warmer in winter.
Factors Affecting climate
22. Research:
The main reason why Mount Kilimanjaro's summit is snow-capped and
covered with ice at the top is owing to the fact that it is located at a high
elevation. Simple. The highest point of the mountain is 19,341 feet above
sea level
Why does MT. Kilimanjaro, located near the
equator in Africa, have a peak which is
covered in snow?