harmful effects of sun’s heat to people

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SCIENCE 3

Unit IV, Chapter 3, Lesson 5: Harmful Effects of Sun’s Heat to People

STRUCTURED LEARNING EPISODEGRADE III

Competency: Communicate how the natural objects in the sky affect daily activities (S3ES-IVg-h-7)Enumerate safety measures to avoid the harmful effects of the sun’s heat and light (S3ES-IVg-h-8)

Lesson: Harmful Effects of Sun’s Heat to PeopleObjectives: 1. Describe the effects of the sun to people

2. Enumerate ways to protect oneself from extreme heat of the sun3. Participate in group activity

Reference: K to 12 Learner’s Material pp.175-176K to 12 Teacher’s Guide pp. 205-208

Materials: big pictures showing a child putting sunglasses, young mother with 2 kids on the beach, alcohol burner, eggplant, tomato, kitchen tong

Activities: PrimingPictures/Illustration Post the 3 big pictures on the board. Ask your pupils to study these pictures.

Ask your pupils the following questions; In picture A, what is the weather of the day? (Sunny Day) Why does the girl needs to put on sunglasses? (The girl needs to put on sunglasses to protect

her eyes from the glaring brightness of the sun during sunny days) In picture B, what are the mother and the children wearing? Describe what they wear. ( Mother

and the children are wearing thin, cotton beachwear) Why do they wear hats? (They wear hats to protect their heads from the heat of the sun and to

shade their eyes from extreme brightness of the sun at different time of the day) What is the weather condition of the day?(Sunny Day ) In picture C, why does the girl hold an umbrella? (It is raining. She protects herself from getting

wet)

Activity Activity Sheet 5: Harmful Effects of Sun’s Heat to PeopleAnalysis After the activity, facilitate the discussion with the following questions as guides:

Did you see some changes in the skin of eggplant and tomato after holding it near the alcohol lamp? What are they?

Did you see some changes in the skin of tomato after putting it over the alcohol lamp? What are they?

Why do you think the skin appear burned or dark? Can the changes in the skin of eggplant and tomato happen in the skin of people? How? What are the effects of too much heat on people?

Abstraction If the weather condition is a hot, sunny day, how are you affected by the heat of the sun? What should you wear on a hot, sunny day? At home? In school? What should you do to protect yourself from the heat of the sun?

On a hot, sunny day: in school, wear something white to reflect the heat. You can also wear a white short sleeve thin shirt to feel the least heat possible the white reflects all visible light thus making it cooler. Also the thinner shirt makes it cooler. If you are going to wear longs sleeves wear very breathable fabric, like cotton. At home, You can also wear white shirts, or any thin shirts, somekhaki or bermuda shorts and some sandals or flip-flops

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SCIENCE 3


Protect yourself from the heat of the sun through a)appropriate clothing;b) wear headgears like hat to protect your head from long exposure to sun’s heat; c) wear sunglasses to shade your eyes from extreme brightness of the sun; d) use umbrella to shade not only your head but your body from too much exposure to the heat of the sun; e) apply sun block lotion on your skin for soothing effect and protection from too much heat

ApplicationAsk the class to work in groups. Answer the following situations and report their answers in

class.

1. The weather forecast is a warm, sunny day. Raul and friends are going to a picnic. He is thinking of what to wear. What will you suggest him to wear in the picnic?

2. Make a list of what to bring if you wish to go hiking on a hot sunny day. Tell why.

What to bring Why?a.b.c.d.e.

ClosureWhat are the effects of too much heat on people?How will you protect yourself from too much heat of the sun?

Assessment Answer the given questions for each situation.

1. The class of Mrs. Santos is on a field trip to the Dinosaur’s Land in Angeles City, Pampanga, the following day. Samantha is so excited to wear her leather jacket, a birthday present from her uncle in the USA. The weather forecast is a hot, sunny week. What will you advise Samantha to wear? Why?

2. Raul, Tirso and Jake planned to go swimming on Saturday. Raul wanted to be at the swimming pool by 12:00 noon. Jake insisted that they go at 4:00 o’clock in the afternoon. Tirso told his two friends that it’s a warm, sunny day on Saturday. Whom do you think has the better idea, Raul or Jake? Why?

Agreement Gather pictures of people who work under the sun for long hours. Describe the effect of the sun on the people.

Prepared by:

KATHERINE C. LANDRITO Teacher I

SUPPLEMENTARY WORKSHEET

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SCIENCE 3


GRADE III

Competency: Communicate how the natural objects in the sky affect daily activities (S3ES-IVg-h-7)Enumerate safety measures to avoid the harmful effects of the sun’s heat and light (S3ES-IVg-h-8)

Lesson: Harmful Effects of Sun’s Heat to PeopleObjectives: 1. Describe the effects of the sun to people

2. Enumerate ways to protect oneself from extreme heat of the sun3. Participate in group activity

Reference: K to 12 Learner’s Material pp.175-176K to 12 Teacher’s Guide pp. 205-208

Materials: big pictures showing a child putting sunglasses, young mother with 2 kids on the beach, alcohol burner, eggplant, tomato, kitchen tong

Direction: Activity Sheet : Harmful Effects of Sun’s Heat to People

1. Light the burner.2. Hold the eggplant with a kitchen tong near the fire for three minutes.3. Repeat the procedure for the tomato. Use the kitchen tong.4. Observe the skin of the eggplant and tomato.

QuestionsWrite the answers in your Activity notebook.a. Did you see some changes in the skin of eggplant and tomato after holding it near the alcohol lamp? What are they?b. Did you see some changes in the skin of tomato after putting it over the alcohol lamp? What are they?c. Draw the appearance of tomato and eggplant before and after they were placed near the alcohol lamp. Do this in your notebook.d. Why do you think the skin appear burned or dark?e. Can the changes in the skin of eggplant and tomato happen in the skin of people? How?f. What are the effects of too much heat on people?

Prepared by:

KATHERINE C. LANDRITO Teacher I

harmful effects of sun’s heat to people

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