3. Division of Labor
-Divide the class into groups with
four members each.
-Each member of the group shall be
assigned a number from 1 to 4.
-A number will be drawn to perform a
task or answer a question.
4. Activity 1.What’s in it?
Identify the hidden letters or
characters based on the given
clues.
17. WHAT DOWE NEEDTO ACCOMPLISH?
▪differentiate weather from climate
▪explain the factors affecting climate
▪show the relationship between climate change
and global warming
18.
19. Activity 2.Weather or Climate?
In this activity, identify whether the statement
describes weather or climate.
-The group is given a few seconds to discuss
among them the answer.
-For statements that describe weather, write
“W”. For statements that describe climate,
write “C”.
20. Activity 2.Weather or Climate?
▪Write “C” if the statement describes
climate, and “W” if it describes weather.
It
It
s
22. Weather
▪ is defined as the state of the atmosphere at a particular
place during a short period of time.
▪ it involves atmospheric phenomena such as temperature,
humidity, precipitation (type and amount), air pressure,
wind, and cloud cover.
▪ can change rapidly and that makes it difficult to predict.
▪ it is what’s happening outside your window right now.
23. Climate
▪ is the composite or generally prevailing weather conditions of a region, as
temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and
winds, throughout the year, averaged over a series of years.
▪ identified by averaging the meteorological conditions over a long span of
time (generally 30 years or more), allowing us to generalize what the
weather conditions tend to look like for a given location and time of year.
▪ is the condition that covers a wide area of the globe measured over long
periods of time.
▪ is the average of many years of weather observation that brings about
seasonal changes.
28. Ocean Currents
- Acts much like a conveyer belt, transporting
warm water and precipitation from the
equator toward the poles and cold water
from the poles back to the tropics.
29. Topography
- Mountains receive more rainfall than low
lying areas because air is forced over the
higher ground it cools, causing moist air to
condense and fall out as rainfall.
30. Solar Radiation
- Increasing or decreasing the amount of
sunlight that is absorbed by the surface of the
earth can affect the Earth’s average
temperature.
31. Volcanic Activity
- Injected ash falls rapidly from the
stratosphere – most of it is removed within
several days to weeks – and has little impact
on climate. But volcanic gases like sulfur
dioxide can cause global cooling, while
volcanic carbon dioxide, a greenhouse gas,
has the potential to promote global warming.
32. OrbitalVariations
- Changes in the Earth’s orbit around the sun
and changes in the tilt and wobble of the
Earth’s axis can lead to cooling or warming of
the Earth’s climate.
33. Evaporation
-Evaporation rates are higher at higher
temperatures because as temperature
increases, the amount of energy necessary
for evaporation decreases. In sunny, warm
weather the loss of water by evaporation is
greater than in cloudy and cool weather.
34. Transpiration
-Warmer temperatures associated with
climate change and increased carbon
dioxide levels may speed plant growth in
regions with ample moisture and nutrients.
This could lead to increased transpiration,
the release of water vapor into the air by
plants as a result of photosynthesis.
35. Respiration
-Respiration rates increase as the
temperatures increase, especially for
decomposers in the ocean (primarily
bacteria) and in tropical rainforests
(primarily fungi and bacteria).
36. Photosynthesis
-Plants use sunlight, carbon dioxide from the
atmosphere, and water for photosynthesis
to produce oxygen and carbohydrates that
plants use for energy and growth. Rising
levels of CO2 in the atmosphere drive an
increase in plant photosynthesis—an effect
known as the carbon fertilization effect.
39. What temperature has to do with climate
change?
Facts:
• Greenhouse Gases are essential to our climate.
• Planets with very little greenhouse effect are either very cold or
they have huge temperature swings from day to night.
• Planets with abundant greenhouse gases are very hot
• The greenhouse gas content of the atmosphere is being altered
by human activity.The result of this change is global warming.
40.
41. A number of greenhouse gases occur naturally in the
Earth’s atmosphere
•Water vapor
•Carbon dioxide - Carbon Dioxide in Earth’s atmosphere has risen by
about 30% since the beginning of the industrial revolution. Most of
the increase is due to the combustion of fossil fuels, which releases
the long-stored CO2 back into the atmosphere.
•Methane - is released by coal mining, landfills, and by agriculture,
particularly through the digestive processes of beef and milk cows.
•Nitrous oxide - is produced by cars, by fossil fuels used for heat and
electricity, and by agriculture.
42. Difference between Climate Change and Global
Warming
In groups, discuss the pictures on the
next slide, then make a Venn diagram
to compare the two:
46. Assignment:
1. What are some causes of global warming?
2. What is the role of humans in climate change?
3. Is climate change beneficial or detrimental to humans? Support
your answer.
4. What are some ways to mitigate the effects of climate change?
