Lesson Plan of Impact of Non-biodegradable Materials
General Science Grade V
Students’ Learning Outcomes
· Explain the touching on of non-biodegradable materials on the environment.
· Suggest ways to trim back the touching on of non-biodegradable materials.
Information for Teachers · Many artificial chemicals used inwards insect killer sprays (for example DDT: Di chloride Phylogeny Polyurethane) conduct keep serious effects on our lives. Some effects appear inwards curt menses of fourth dimension but other accept many years to appear.
· When dichloro-diphenyl-trichloroethane gets into our body, it enters into many organs together with causes headache, nausea, vomiting, confusion together with tumor.
· Plastic bags used inwards daily life can’t live decomposed past times bacteria together with then nosotros should trammel their piece of employment for example, for shopping, nosotros should piece of employment newspaper / stuff bags or baskets instead of plastic bags.
· The touching on of non-biodegradable materials tin live reduced past times recycling.
· Old tires are recycled into novel one.
Material / Resources
Pictures showing harmful effects of burning of tires, plastic bottles etc. on environs together with textbook.
Worm upward Activity
Ask the students:
· Tell the holler of musquito / cockroach killer used at your homes.
· When you lot consume white patato crisps, where exercise you lot throw its wrapper?
Development
Activity 1
· Make the next tabular array on board together with inquire students to re-create it inwards their notebooks.
· Ask students to gibe the harmful effects amongst relevant non-biodegradable items inwards the column given below:
Non-biodegradable items | Harmful effects on environment |
Plastic / Rubber items | Throwing inwards opened upward air causes blockage of sewage organisation which results inwards diseases. |
Shopping bags | Throwing these items around, our environs gets untidy together with unhealthy. |
Wood / Glass items | When these are burnt, harmful gases larn inwards air together with crusade dissimilar diseases. |
Teacher volition conclude this activeness past times holler for next questions:
· Should nosotros piece of employment the same plastic handbag many times for shopping?
· What move on if nosotros throw plastic bags inwards water?
· Should nosotros burn downwards the forest items inwards opened upward air?
· Should nosotros recycle the drinking glass items inwards factories for making novel things?
· The virtually normally used chemicals inwards insect killer sprays conduct keep serious effects on our lives. Some side effects appear inwards curt menses of fourth dimension but other accept really long menses (many years) for instance dichloro-diphenyl-trichloroethane (used equally insecticides) causes headache, nausea, vomiting, confusion together with tumor inwards humans.
· Plastic bags used inwards daily life can’t live decomposed past times bacteria together with then nosotros should trammel its use. For example, for shopping, nosotros should piece of employment newspaper /cloths bags or baskets instead of plastic bags.
· The touching on of non-biodegradable materials tin live reduced past times recycling.
· Involve the students inwards solving the questions given at the halt of chapter / unit of measurement inwards textbook.
Assessment
Activity:
· Ask the students what they should exercise to trim back the harmful effects of non-biodegradable materials (plastic items disposable items, shopping bags, wrappers rubbers /tires etc.
· Students should right the next statements.
· We should throw higher upward mentioned items inwards our surrounding.
· We should burn downwards plastic / prophylactic together with shopping bags on route side.
· Cloth bags, newspaper bags or baskets can’t live used for shopping.
· The dichloro-diphenyl-trichloroethane together with musquito killer are harmless to our health.
Follow up
· Tell the students that chart below lists the items that nosotros oft throw away. It besides shows how long an detail would accept to interruption down, or disappear, 1 time it is buried inwards land. Ask the students to fill upward the concluding column amongst their ideas on how to reuse the items.
Objects | How long it would accept to disappear or interruption downwards inwards land | One agency I could reuse the items |
Paper bag | 30 days | |
Plastic bag | 1000 years | |
Aluminum Can | 200-500 years | |
Styrofoam Cup | 1 1 G k years or more | |
Glass Bottles | 1 1 G k years or more. |
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