August 12, 2105 Wednesday Science Neon 6:00-7:00 I. Objective: Describe the effects of deforestation Values: Protect the Forests II. Subject Matter: Effects of Deforestation A. Science Concepts/Ideas: The Philippines is losing 14 hectares of forests per hour due to illegal logging, forest fires, slash and burn agriculture. Acid rain in one devastating effect of air pollution. Emissions from coal-burning factories, electric plants, transport vehicles and volcanic eruptions contain sulfur dioxide and nitrogen oxides. B. Processes: Describing, inferring, investigating, observing C. Materials: Plate of shallow basin; Soft drank crown; Glass jar; Water; Bromthymol blue (BTB) A slab of concrete or hollow block References: Science and Health VI, Module and Work text - pp. 64-65 III. Procedure: A. Preparatory Activity: Check on the pictures they cut. Describe and tell the importance of the forests. B. Developmental Activities: 1. Motivational Activity: Show a picture of a forest in fire/trees is cut down. Ask what may happen if the forests are burned/if, trees are cut down. 2. Presentation: Activity 1 Give the meaning of deforestation. Tell some causes of deforestation Name the gases emitted by coal- burning factories, electric plants, transport vehicles and volcanic eruptions. Infer how acid rain works. Read the following: The Philippines is losing 14 hectares of forests per hour due to illegal logging, forests fires, slash and burn agriculture. The threat of acid rains could completely obliterate forest ecosystems. Acid rain is one devastating effect of air pollution caused by coal- burning factories, electric plants, transport vehicles and volcanic eruptions. Their emissions contain sulfur dioxide and nitrogen oxides forming sulfuric and nitric acids when they dissolve in water, thus acid rain seeps into the ground, leaches minerals from the soil, thus retarding the growth of trees. Answer the following questions. 1. Why are the Philippines losing 14 hectares per hours? 2. How is acid rain formed?
August 12, 2105Wednesday Science Neon6:00-7:00I. Objective:
Describe the effects of deforestationValues: Protect the ForestsII.
Subject Matter:Effects of DeforestationA. Science Concets!Ideas:
"he Philiines is losin# $% hectares of forests er hour due to
ille#al lo##in#& forest fires& slash and burn a#riculture.
Acid rain in one devastatin# effect of air ollution. E'issions fro'
coal(burnin# factories& electric lants& transort vehicles
and volcanic erutions contain sulfur dio)ide and nitro#en o)ides.*.
Processes:Describin#& inferrin#& investi#atin#&
observin#C. Materials:Plate of shallo+ basin, Soft dran- cro+n,
.lass jar, /ater, *ro'th0'ol blue 1*"*2A slab of concrete or hollo+
bloc-3eferences: Science and 4ealth VI& Module and /or- te)t (
. 5%(56III. Procedure:A. Prearator0 Activit0: Chec- on the ictures
the0 cut. Describe and tell the i'ortance of the forests.*.
Develo'ental Activities:$.Motivational Activit0:Sho+ a icture of a
forest in fire!trees is cut do+n. As- +hat 'a0 haen if the forests
are burned!if& trees are cut do+n.7.Presentation: Activit0 $
.ive the 'eanin# of deforestation. "ell so'e causes of
deforestation 8a'e the #ases e'itted b0 coal(burnin# factories&
electric lants& transortvehicles and volcanic erutions. Infer
ho+ acid rain +or-s. 3ead the follo+in#:"he Philiines is losin# $%
hectares of forests er hour due to ille#al lo##in#& forests
fires& slash and burn a#riculture. "he threat of acid rains
could co'letel0 obliterate forest ecos0ste's. Acid rain is one
devastatin# effect of air ollution caused b0 coal(burnin#
factories& electric lants& transort vehicles and volcanic
erutions. "heir e'issions containsulfur dio)ide and nitro#en o)ides
for'in# sulfuric and nitric acids +hen the0 dissolvein +ater&
thus acid rain sees into the #round& leaches 'inerals fro' the
soil& thus retardin# the #ro+th of trees. Ans+er the follo+in#
9uestions.$./h0 are the Philiines losin# $% hectares er hours:7.4o+
is acid rain for'ed:;./h0 is acid rain a threat to the forest
ecos0ste':;.Concet For'ation: State conclusions re#ardin# their
activit0. "ell ho+ destructive acid rains are to the
forests.%.Alication:4o+ +ould 0ou rotect the forests: 8a'e so'e
friendl0 activities to avoid deforestation.a0a nan# 'a#iit sa era
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