SCIENCE 5 Different Weather Disturbances QUARTER 4 WEEK 4 D A Y 1 Match the symbols in column A to Column B. Observe the illustration below. What can you say about the picture? As the weather disturbance comes nearer the land, it will become stronger or weaker. The Philippine Atmospheric Geophysical and Astronomical Services Administration or PAGASA is a government agency responsible not only for forecasting weather but also for issuing warning signals to the affected areas. The system of warning signals used by PAGASA is as follows: Signal 1 A depression is in the area. A wind less than 60km/hr in velocity is expected in the next 36hours. People are advised to listen to the radio for updates. Preschool level classes are suspended. Signal 2 The depression has developed into a storm. Winds with a velocity ranging from 60km/hr to 100 km/hr are expected to arrive within 24hours at the very least. This time, classes are suspended at the elementary and high school levels. The winds can cause moderate damage in places that are affected. Signal 3 A typhoon is coming within 18 hours. Winds have a velocity above 100 km/hr but below 180 km/hr. Houses made of light materials may be destroyed and there might be communication and electrical power disruptions. Moderate to heavy damage may be expected. Evacuation of those people living in low-lying areas is being advised. Travel by air and seas are not recommended. Classes at all levels are suspended. Signal 4 A stronger typhoon is coming within 12 hours. Winds have a velocity above 180 km/hr. This condition is very dangerous because great damage can happen in affected places. Signal 5 A strongest typhoon is coming with 12 hours. The wind has a velocity above 220 km/hr. Widespread damage to structure particularly old and dilapidated homes and buildings, and most tall trees may be broken, uprooted or defoliated. Due to extreme heat, your family plans to have an outing or swimming somewhere in Batangas this weekend. However, you heard on the radio that a strong typhoon is approaching Central Luzon and will pass through some areas of Batangas province. What are you going to do? What will be your decision? The system warning signals used by PAGASA are very important to minimize the destructive effects of the typhoon on animals, plants, people and community. DIRECTIONS: Describe the effects of winds associated with each storm signal. Choose the signal number inside the box. 1. A typhoon is coming within 18 hours. Winds have a velocity above 100 km/hr but below 180 km/hr. Houses made of light materials may be destroyed and there might be communication and electrical power disruptions. Moderate to heavy damage may be expected. Evacuation of those people living in low-lying areas is being advised. Travel by air and seas are not recommended. Classes in all levels are suspended. 2. The depression has developed into a storm. Winds with a velocity ranging from 60km/hr to 100 km/hr are expected to arrive within 24hours at the very least. This time, classes are suspended at the elementary and high school levels. The winds can cause moderate damage in places that are affected. 3. A stronger typhoon is coming within 12 hours. Winds have a velocity above 180 km/hr. This condition is very dangerous because great damage can happen in affected places. 4. A depression is in the area. Winds less than 60km/hr in velocity are expected in the next 36hours. People are advised to listen to the radio for updates. Preschool level classes are suspended. 5. A strongest typhoon is coming in 12 hours. Winds have a velocity above 220 km/hr. Widespread damage to structures particularly old and dilapidated homes and buildings, and most tall trees may be broken, uprooted or defoliated. 5 WAYS TO BE SAFE DURING TYPHOON SCIENCE 5 Different Weather Disturbances QUARTER 4 WEEK 4 D A Y 2 Look at the picture: What do you think are the reasons why these happened? Weather disturbances are devastating. It can cause damage to our life and properties Typhoons affect human lives and activities. Classes and work in the offices are suspended during heavy typhoons. Flooding can cause people to drown, houses to be completely destroyed, property to be swept Land, sea and air transportations are suspended because streets become impassable because of flooding, storm surges may occur in the sea and possible turbulence in the air. Mudslides and power outages are common. Food shortages, a lack of access to adequate medical care and supplies, and restricted access to major highways and cities can worsen the problem caused by a typhoon The effects of a typhoon on humans can be significant and varied. Here are some of the impacts: 1. Physical Injuries: Strong winds and heavy rain can cause physical injuries, such as debris blocking roads and trees falling. It can also lead to people being injured. 2. Casualties: In severe typhoons, there can be fatalities due to collapsed houses or other structures, flooding, or other accidents. 3. Displacement: Severe typhoons can force people to evacuate or leave their homes and communities for safer areas. 4. Emotional and Psychological Impact: Events related to typhoons, such as loss of homes or property, trauma for those affected, and loss of loved ones, can lead to significant stress and depression. 5. Disruption of Services: Typhoons can cause power outages, water shortages, and other disruptions to essential services, making daily life difficult for people. 6. Health Risks: Flooding from typhoons can lead to the spread of diseases such as leptospirosis and other waterborne diseases. Lack of electricity and clean water can also pose health risks. 7. Economic Impact: Typhoons that cause widespread damage to property and agriculture can have a significant impact on the economy of an area or country. Overall, the effects of typhoons on humans can be wide-ranging and severe, highlighting the importance of preparation and providing the right information and support to affected communities. DIRECTIONS: These pictures show the effects of a typhoon. Complete the phrases below. Choose from the words in the box. Complete the sentences. To be safe during typhoon, people should be stay at_________ . But if your place is in danger due to flood, you should ____________ or go to safe places. Typhoon cause great destruction in the community. It has a significant impact on people's daily lives and activities. DIRECTIONS: Describe the pictures that show human activities during typhoon. SCIENCE 5 Different Weather Disturbances QUARTER 4 WEEK 4 D A Y 3 Review! DIRECTIONS: Describe the pictures that show human activities during typhoon. What do you think will happen to plants if strong typhoon heats a certain area? Weather disturbances can also destroy our means of livelihood. Heavy Rainfalls and strong wind can uproot tress and destroy crops that provide us with food. Effects of Typhoon on Plants Typhoons affect plant’s life. They bring heavy rains and strong winds. Heavy rains can cause floods that drown plants and destroy its crops. Toxic chemicals like pesticides carried by floods can saturate grassland. Destruction of plant’s vegetation occurs too due to landslides. They can take down the plants that cause them to die. They can remove productive soils that plants need to grow. On the other hand, strong winds can snap trees' leaves and branches, causing them to snap and break. They can cause the fall of big trees too. Effects of Typhoon on Animals Typhoons have a massive effect on the lives of animals. Excessive rains that cause flooding can drown them and can wash away their habitats. Animals that are trapped in floods will eventually die due to starvation from being unable to get their food. Domestic pets like dogs and cats also suffer. They too can become stressed when they are brought by their owners to a safer place. Numerous animals are also abandoned, leaving them to struggle for survival. Some animals are killed when their habitats such as trees will be ripped down by a strong wind. Several of them have been buried alive as a result of landslides. DIRECTIONS: Put a check mark / if it is effect of typhoon to plants and X mark if animals. 1. Landslides bury and destroy crops. 2. Big trees are uprooted. 3. Trees that are ripped down can kill animals. 4. Seeds are swept away that makes them unable to grow. 5. Animals are trapped and struggle to survive. 6. Removal of productive soil. 7. Abandonment of animals. 8. Toxic chemicals saturate grassland. 9. Destruction of animals’ habitat. 10. Leaves and branches are broken. Knowing that typhoons affect plants and animals, list down some ways on how you can help reduce their harmful effects on them? 1._____________________ 2._____________________ 3._____________________ Typhoons cause so many destructions to plants and animals because they bring strong winds and heavy rains. They usually cause a lot of danger and damage such as destroying crops and animal’s habitat, removal of productive soil, breaking the leaves and the branches of trees, saturating grassland and the death of plants and animals. Directions: Read and understand each item carefully. Encircle the letter of the correct answer. 1. How do typhoons affect plants? A. Typhoons destroy crops. B. Typhoons make plants grow healthy. C. Typhoons enrich the soil with minerals. D. Typhoons sweep seeds away and enable them to grow. 2. Which of the following describes the effect of typhoons on plants? A. Plants and vegetation are being damaged. B. Removal of productive soil C. Break leaves and branches of trees D. All of the above 3. How do typhoons affect animals? A. They make animals healthy. B. They cause stress to animals. C. They conserve animal’s habitat. D. They don’t affect domestic pets. 4. The following are the effects of typhoons on animals EXCEPT. A. Uprooted big trees. B. Destruction of animals’ habitats. C. Animals are trapped in the flood. D. Animals that are abandoned struggle to survive. 5. Which of the following describes the effect of typhoons on both plants and animals? I. Typhoons destruct the habitats of plants and animals. II. Typhoons can saturate both plants and animals. III. Typhoons can stress both plants and animals. IV. Typhoons can kill both plants and animals. A. I, II and IV B. I, III and IV C. I, II and III D. I, II, III and IV SCIENCE 5 Dealing with Weather Disturbances QUARTER 4 WEEK 4 D A Y 4 Review: Knowing that typhoons affect plants and animals, list down some ways on how you can help reduce their harmful effects on them? 1._____________________ 2._____________________ 3._____________________ Study the picture below. 1. What do you observe in the picture? 2. What do you think happened in the place? 3. What do you think will the people living in the house feel? 4. What do you think will they be able to do in that condition? The Philippines is located in the typhoon belt, where several typhoons pass each year. In addition to typhoons, the southwest monsoon brings heavy rains that cause floods and rough seas, especially in July, August, and September. Knowing the weather forecasts can minimize the loss of lives and properties due to weather disturbances; it can also help the industries. This is because man can prepare for the bad weather. Millions of pesos worth of properties and farm crops and people’s lives are lost to flood and strong typhoons. These damages make many people suffer. We cannot change the path of the typhoon or stop it from coming. But we can always prepare for it. PAGASA, with its modern technology, cab assess and monitor any upcoming typhoon. Once we already have all the information about it, we can now prepare ourselves for it and lessen the possible damages that the weather disturbance may bring. What to Do Before, During, and After a Typhoon? Here are some of the precautionary measures that one should observe before, during and after a typhoon. Before 1. Check the roof of your house for any leaks. Check the windows and make repairs if they are broken. 2. Make sure that the posts and roofs of your house are sturdy enough to withstand strong winds. 3. Keep enough supply of water, rice, canned goods, and medicines but do not engage in the practice of panic buying. 4. Prepare an emergency kit. It should include a flashlight, medicines, ready-to-eat packed food or canned goods, and some clothes. Bring this emergency kit when you evacuate to a safer place. 5. Secure all important documents in a waterproof bag. This is to make sure that the documents will not get wet when your place becomes flooded. 6. Keep a battery-powered radio to keep yourself updated on the latest news about the typhoon. During 1. Stay indoors. Cancel or postpone any travel plan. 2. If you live in a low-lying area, be alert about your local officials’ advisory regarding evacuation. 3. Stay away from places that may have experienced short circuit. 5. If you are in an evacuation center, be updated on the latest news advisory. 6. Boil your drinking water. Floods may have contaminated the tap water. 7. Check if your family members or relatives who are staying in the affected areas are in need of help or rescue. After 1. Ask an electrician to check the electrical wirings or appliances that were soaked in flood water. 2. 2.Check the damaged parts of your house and have them repaired. Replace them if necessary. 3. Boil your drinking water. Even after the flood, water may not be that safe to drink. 4. Ensure the safety of your family members and relatives who were affected by the floods. 5. Help the victims of calamities by giving donations or being volunteer in relief operations. List down the top five important items that you will prepare in order to survive the hazards the typhoon might bring. 1. 2. 3. 4. 5. During typhoons, people living in or near the coastal areas are forced to evacuate because their lives are mostly at risk. What is the reason for forcing the people to evacuate? Why is it important to prepare even before a typhoon hits a certain locality? Draw a if the statement shows precautionary measures in times of typhoons and if not. 1. Boil your drinking water even after the typhoon. 2. Check the electrical appliances after the flood subsided. SCIENCE 5 Catch-Up Friday QUARTER 4 WEEK 4 D A Y 5
