PROPOSED LESSON
PLAN/NOTE FOR THE TEN WEEK ENDING 18th NOVEMBER, 2022
2022/2023 ACADEMIC
SESSION
SUBJECT: BASIC SCIENCE
TOPIC: ENVIRONMENTAL
CONSERVATION AND SAFETY
CLASS: GRADE 7
NUMBER OF STUDENTS: 22
AVERAGE AGE: 11+ YEARS
GENDER: MIXED
PERIOD: 7th
AND 8th PERIOD ON TUESDAY AND FRIDAY RESPECTIVELY
TIME: 1:20-2:00
DURATION: 40 MINUTES
DATE: 14/11/2022
SPECIFIC OBJECTIVES: By
the end of the lesson the students should be able to;
1.
state the meaning of environmental conservation and balance;
2.
describe the sun as the primary source of energy to the Earth.
3. discuss natural cycles (carbon, water,
nitrogen cycles).
4.
highlight human activities that affect environmental balance (e.g. farming,
construction, industrialization, etc).
ENTRY
BEHAVIOUR: The students have already studied part of this topic the
previous week.
INSTRUCTIONAL
TECHNIQUE: Visual, questions and simulation.
INSTRUCTIONAL
MATERIALS: Pictures showing environmental
conservation.
DEVELOPMENT:
STEP 1: ENVIRONMENTAL
CONSERVATION AND SAFETY
Environmental
conservation means the various ways by which we maintain our environment to
make it fit and suitable for living. This include total cleanliness, proper
disposal of refuse and sewage, getting rid of hazardous materials, checking
erosion, adopting good farming practice, etc.
STEP 2: THE SUN AS THE
PRIMARY SOURCE OF ENERGY TO THE EARTH
The
sun is the major source of energy and vital to life on Earth, but much of its
light is reflected. Solar energy acts as a primary energy flow that can be
harnessed.
Almost
all of the Earth’s energy inputs come from the sun. Not all of the sunlight
that strikes the top of the atmosphere is converted into energy at the surface
of the Earth.
STEP 3: NATURAL CYCLES
(Carbon, water and nitrogen cycles)
Carbon cycles: Carbon
cycle is the circulation of carbon through ecosystems. Carbon atoms from carbon
dioxide are incorporated into organic compounds formed by green plants during
photosynthesis. These compounds are eventually oxidized during respiration by
plants which made them, or by herbivores, carnivores, man and saprophytes, thus
releasing carbon dioxide for further photosynthesis.
Water cycles: Water
cycle involves evaporation and condensation. After rain, water is seen on the
surface of the soil; some of which enter the lakes, streams, rivers or even
high seas and oceans through underground movement. Plants release water during respiration and evaporation. Animals
live on water from drinking and digestion of food. This they later release
through urination and defecation etc. In dry seasons, part of the water
evaporates and on becoming heavy in the clouds, condenses and falls as rain
again.
Nitrogen cycles: Nitrogen
gas the uncombined element nitrogen (N2) makes up about 78 percent of the
atmosphere; yet the great majority of organisms can make no use of it. Ammonia
is a nitrogen compound that dissolves very readily in water. They form nitrite
which in turn form nitrate which is absorbed by the root of plant through the
action of nitifying bacteria.
STEP 4: HUMAN
ACTIVITIES THAT AFFECT ENVIRONMENTAL BALANCE
1.
Deforestation
2. Overgrazing
3.
Bush burning
4. Environmental pollution
5.
Over-cultivation
6.
Farming
7.
Industrialization, etc.
EVALUATION: Oral
Questions
1.
state the meaning of environmental conservation and balance;
2.
describe the sun as the primary source of energy to the Earth.
3. discuss natural cycles (carbon, water,
nitrogen cycles).
4.
highlight human activities that affect environmental balance (e.g. farming,
construction, industrialization, etc).
SUMMARY/CONCLUSSION:
Environmental conservation means the various ways by which we maintain our
environment to make it fit and suitable for living.
ASSIGNMENT:
1.
State the meaning of environmental conservation and balance;
2.
Describe the sun as the primary source of energy to the Earth.
3. Discuss natural cycles (carbon, water,
nitrogen cycles).
4.
Highlight human activities that affect environmental balance (e.g. farming,
construction, industrialization, etc).
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