LESSON PLAN SCIENCE Grade 4 EARTH AND SPACE I. OBJECTIVE After the activity, the learners will be able to 1. identify the beneficial and harmful effects of the sun’s heat and light on living things, 2. explain how the sun affects living things II. SUBJECT MATTER Learning Competency: Describes the effects of the sun. (S4ES-IVh-9) Topic: Effects of Sun’s Heat and Light Reference: TG pp. 352-357 LM pp. 311-315 Science Learner’s Materials and Teacher’s Guide Computer / laptop Pictures Bond Paper Information Communication Technology (ICT) Materials: Integration: III. PROCEDURE TEACHERS ACTIVITY A. Classroom Routine Opening Prayer Greetings Checking of attendance B. Review Can you tell me the correct path of light? Will the pass through objects that are not transparent? STUDENTS ACTIVITY Yes Sir! The path of light is straight No sir! C. Motivation Let us all sing the song “Mr. Sun” “Mr. Sun” Oh Mr. Sun, Sun, Mr. Golden sun Please shine down on me. Oh Mr. Sun, Sun, Mr. Golden sun Please shine down on me. Hiding behind the tree Oh these little children are asking you To please come out so we can play with you Oh Mr. Sun, Sun, Mr. Golden sun Please shine down on, please shine down on, Please shine down on me… (Repeat) Show pictures of harmful and beneficial effects of the sun’s heat and light. Ask the learners to describe each picture. Pupils will sing the song. What can you see in the picture? Describe what you see in the picture. 1. Plants need sun’s heat and light in order to grow and produce food. 2. Sunburn, too much exposure to the sun and the man didn’t protect himself from the heat of the sun. 3. Solar panel, get the energy of the sun and converted it to electricity. 4. Plants withering, too much heat from the sun. 5. Cycling, outdoor activities were the man is enjoying his cycling under the heat of D. Activity GROUP 1 Direction: Group the pictures whether they are harmful or beneficial effects of the sun. HARMFUL BENEFICIAL GROUP 2 Direction: Write whether the sentences below are beneficial or harmful. ____________________1. For drying laundry. ____________________2. It causes sunburn and skin cancer with too much exposure. ____________________3. Drying of salted meat. ____________________4. Visual impairment when one often looks directly at the sun. ____________________5. Plants wilt and dry when exposed to too much sunlight. GROUP 3 Direction: Classify the sentence whether Beneficial or Harmful effects of the Sun. 1. Beneficial 2. Harmful 3. Beneficial 4. Harmful 5. Harmful EFFECTS of the SUN One’s skin will age early. Used by plants to make their food. Paste here the beneficial effects of the sun. Paste here the harmful effects of the sun It causes sunburn and skin cancer Too much exposure to UV can cause damage to the immune system. Helps in some skin condition like psoriasis. Psoriasis- the skin sheds its cells too quickly. It causes sunburn and skin cancer E. Discussion In what way is the sun beneficial to plants, animals and humans? Plants can make their own food through the presence of sunlight in the photosynthetic process. Likewise animals and humans need the sun’s heat and light energy in order to survive. With the presence of sunlight, humans can do a lot of activities such as laundry, harvesting, drying of crops, fishing and drying of fishes and recreational activities like outing/ picnics. Both farmers and fishermen use the sun’s heat in drying crops and fishes. In what way is the sun’s heat and light harmful to living things? Helps in some skin condition like psoriasis. Psoriasis- the skin sheds its cells too quickly. Used by plants to make their food. Too much exposure to UV can cause damage to the immune system. One’s skin will age early. Excessive exposure to sunlight can burn or harm the skin. This is called sunburn. Too much heat of the sun can cause the withering of the plants and eventually they die. Animals are badly affected when there is no food for them and exposure to intense heat can cause them to become ill and eventually die. We should not look directly at the sun because it can damage our eyes. The soil will become very dry and can crack causing the plants to die. Farming also is not possible F. Analysis What are the beneficial effects of the sun’s heat and light to the living things? The sun is the source of all energy, gives off heat and light. Plants, animals and humans can survive because of the sun’s heat that warms the earth. What are the harmful effects of the sun’s Too much exposure to sunlight can cause sunburn and skin cancer. Looking at the sun heat and light to the living things? directly can cause visual impairment. Too much heat from the sun can cause heat stroke. Too much sunlight can cause a plant’s withering and lead to its death. What can we get in the sun? Very good! The energy the we can get in the sun can be converted into electricity. Energy EPP or TLE Sir In what particular subject we can find electricity? Very Good! In high school this is electricity subject under TLE. Is electricity Important to us? Why? Very Good! Yes, Sir Electricity is very important in our daily life it feels us comfortable. G. Abstraction In what way is the sun’s heat and light be Sun’s heat and light are beneficial because it help plants, animals and humans to survive. It beneficial and harmful? is harmful because it can cause a plant’s wither and lead to its death and the effects of too much heat of the sun to the humans can cause heat stroke or sunburn, and to much exposure to intense heat can lead the animals become ill and eventually die. H. Application The Boy scouts and Girl scouts of the Philippines will be conducting a National Jamborette and most of the activities will be held in the field. As an active scouter, how are you going to protect yourself from the exposure of the heat of the sun? As a scouter, I will make sure that I will observe all the precautionary measures to avoid any harmful effects of the sun to myself. During outdoor activities I will apply sun block lotion to my body and I will wear shirt with long sleeves and wear a hat. I will also bring a bottle water to keep my body hydrated. IV. Evaluation Direction: Write TRUE If the statement is beneficial and write FALSE if the statement harmful effects of the sun. 1. You can get sunburned on a cloudy day. TRUE 2. You only need to wear sunscreen when you are at the beach. FALSE 3. My skin doesn’t get sunburned, so I don’t need to worry about protecting myself from overexposure to the sun. FALSE 4. Too much heat can dries up the land that can affect the livelihood of the farmers. TRUE 5. During sunny day people can do and enjoy outdoor activities. TRUE V. Assignment: Research on other harmful effects of the sun on living things.
