2nd-PT. Science for Review PDF

Direction: Choose the letter of the best answer. 1. The skeletal system supports the body and helps us move. What daily activity relies heavily on the bones and joints of your body?\ a) Eating breakfast\ b) Walking to school\ c) Listening to music\ d) Sleeping 2. Muscles help...

Direction: Choose the letter of the best answer. 1. The skeletal system supports the body and helps us move. What daily activity relies heavily on the bones and joints of your body?\ a) Eating breakfast\ b) Walking to school\ c) Listening to music\ d) Sleeping 2. Muscles help us move by working with the skeletal system. Which of the following actions is a result of your muscles contracting?\ a) Sleeping at night\ b) Playing sipa with friends\ c) Reading a book\ d) Watching TV 3. The digestive system breaks down food into nutrients that your body uses for energy. What Filipino dish is easiest to digest because it is light and easy on the stomach?\ a) Lechon\ b) Sinigang\ c) Lugaw\ d) Adobo 4. Your circulatory system carries oxygen and nutrients throughout your body. What is the main organ responsible for pumping blood to all parts of your body?\ a) Lungs\ b) Heart\ c) Brain\ d) Kidneys 5. The respiratory system brings oxygen into the body and removes carbon dioxide. Which of the following activities increases your need to breathe faster?\ a) Sleeping in the afternoon\ b) Running in a Palarong Pambansa race\ c) Eating your favorite halo-halo\ d) Writing an essay in class 6. Which two systems work together when you are playing a traditional Filipino game like \"patintero\" that requires running and quick movements?\ a) Skeletal and Digestive\ b) Respiratory and Muscular\ c) Circulatory and Digestive\ d) Skeletal and Circulatory 7. When you are eating food like sinangag and tapa, what body system helps break it down and absorb the nutrients?\ a) Muscular system\ b) Skeletal system\ c) Respiratory system\ d) Digestive system 8. When you are walking uphill in a hilly area like Tagaytay, your legs start to feel tired after a while. Which body system is responsible for this feeling?\ a) Skeletal system\ b) Muscular system\ c) Circulatory system\ d) Respiratory system 9. After a long day of school, you might feel sleepy and tired. Which system is responsible for transporting oxygen to your muscles so you have energy?\ a) Circulatory system\ b) Skeletal system\ c) Digestive system\ d) Muscular system 10. If a person feels their heart beating fast after climbing several flights of stairs, which two body systems are involved in this action?\ a) Digestive and Muscular\ b) Respiratory and Circulatory\ c) Skeletal and Respiratory\ d) Muscular and Digestive 11. A farmer in Batangas plants mango trees in his farm. He notices that the roots of the mango tree are strong and extend deep into the soil. Why are the roots important for the tree? a. The roots make the tree taller. b. The roots help the tree absorb water and nutrients from the soil. c. The roots help the tree produce fruits. d. The roots make the leaves greener. 12. A Grade 4 student from Leyte observes the shoot system of a coconut tree. Which of the following best explains the importance of the shoot system for the plant? e. It helps the tree absorb water from the soil. f. It stores food for the tree to grow. g. It supports the plant and allows the leaves to capture sunlight for photosynthesis. h. It helps the tree grow taller quickly. 13. In a science experiment, students in Mindanao compare two plants: one with roots cut off and one with roots intact. After one week, the plant without roots begins to wilt. What is the most likely reason for this? i. The plant could not get enough sunlight. j. The plant lost its ability to produce flowers. k. The plant could not absorb water and nutrients from the soil. l. The plant\'s leaves stopped growing. 14. A child in Ilocos observes that some plants, like rice and kangkong (water spinach), have roots growing in water. Why is the root system still important even for plants growing in water? m. The roots help the plant float on water. n. The roots absorb oxygen directly from the air. o. The roots absorb nutrients and minerals from the water for the plant to grow. p. The roots make the plant grow faster. 15. In a vegetable garden in Cebu, a child notices that when some plants are uprooted, the leaves quickly dry out and die. Why does this happen? q. The plant lost its connection to the soil and can no longer absorb water and nutrients. r. The roots were not getting enough sunlight. s. The plant needs more space to grow. t. The leaves are exposed to too much air. 16. A farmer notices that a certain type of plant thrives in the rice fields in Laguna, where the area is often flooded. Based on this information, how should the farmer classify this plant? u. Terrestrial\ b) Aquatic\ c) Aerial\ d) Desert 17. In a mangrove ecosystem in the Philippines, which of the following animals would most likely be classified as terrestrial? v. Bangus (Milkfish)\ b) Tuko (Gecko)\ c) Lapu-lapu (Grouper)\ d) Maya (Sparrow) 18. You are visiting a fishing village and see different kinds of animals. One of the animals is a bat hanging from a tree. How should this bat be classified based on its habitat? w. Aquatic\ b) Terrestrial\ c) Aerial\ d) Amphibious 19. In a classroom activity, students are asked to draw animals living in the Taal Volcano protected area. One student draws a Philippine eagle soaring over the volcano. In what habitat does the Philippine eagle primarily live? x. Aquatic\ b) Terrestrial\ c) Aerial\ d) Underground 20. A Grade 4 student from Cebu was asked to create a food chain. They included a \"Tilapia\" as one of the organisms. Based on the habitat of tilapia, where does this food chain most likely occur? y. In the forest\ b) In the river\ c) In the sky\ d) In the mountains 21. You are observing a rice field in your barangay. What could happen to the food chain if there are too many frogs in this habitat? z. There will be more insects to feed the frogs.\ b) The number of insects will decrease, and birds may go hungry.\ c) Rice plants will grow faster because there are more frogs.\ d) More frogs will lead to fewer snakes in the area. 22. In a mangrove swamp, crabs and fish thrive in the water, while some birds live in the trees. What will most likely happen if many of the mangrove trees are cut down? a. The fish population will increase because they have more space to swim.\ b) Crabs will thrive as there will be fewer birds to eat them.\ c) The entire food chain could be affected, and the animals might lose their habitat.\ d) More plants will grow in the swamp to replace the mangroves. 23. In a garden habitat, you notice that caterpillars are feeding on the leaves of plants. After a few days, you see fewer caterpillars and more butterflies. What does this observation tell you about the life cycle of the caterpillar? b. The caterpillars have eaten all the leaves and moved to a new place.\ b) The caterpillars turned into butterflies after completing their life cycle.\ c) The butterflies chased away the caterpillars.\ d) The caterpillars are still there but hiding from the butterflies. 24. A community near the seashore observes that fewer fish are being caught in their area. Based on your knowledge of food chains, what could be the most likely reason for this? c. The plants growing on the seashore are taking up too much space.\ b) There are fewer small fish for bigger fish to eat, possibly due to overfishing.\ c) More fishermen are catching all the fish before they grow.\ d) The fish have moved closer to the shore to avoid bigger predators. 25. If you were to visit a rice field and make a list of the animals you see, which of the following would not belong to the habitat of a rice field? d. Frogs\ b) Snakes\ c) Seagulls\ d) Insects 26. Which stage of the life cycle of a butterfly comes right after the caterpillar stage? e. Egg\ b. Pupa\ c. Adult butterfly\ d. Larva 27. In comparing the life cycles of a frog and a chicken, which of the following stages is similar in both? f. Tadpole and Chick\ b. Egg\ c. Larva and Egg\ d. Pupa and Adult 28. If a human baby grows into a toddler, a student, and then an adult, which stage in the life cycle of a frog represents a similar mature stage? g. Tadpole\ b. Egg\ c. Adult frog\ d. Pupa 29. In the life cycle of a frog, which habitat is most important for the tadpole stage in the Philippines? h. Mangroves\ b. Rivers and ponds\ c. Forest floors\ d. Grasslands 30. Which part of the food chain would a chicken most likely belong to, based on its diet in rural Philippine areas? i. Producer\ b. Primary consumer\ c. Secondary consumer\ d. Decomposer 31. A farmer in your barangay notices that the goats in his farm eat only grass, leaves, and vegetables. How would you classify goats based on the food they eat? j. Carnivores\ b. Omnivores\ c. Herbivores\ d. Insectivores 32. In a science project, your group observes that stray cats in your neighborhood eat fish, chicken, and sometimes rice. How would you classify these animals according to their diet? k. Herbivores\ b. Carnivores\ c. Omnivores\ d. Detritivores 33. A local forest has several animals, including deer that eat leaves and fruits, as well as eagles that hunt smaller animals. If you were to compare the diet of these animals, how would you classify them respectively? l. Both are herbivores\ b. Both are carnivores\ c. The deer is a herbivore, and the eagle is a carnivore\ d. The deer is an omnivore, and the eagle is a herbivore 34. You visit a wet market with your family, and you see vendors selling both pork and fish. You remember that some animals eat both plants and meat. Which of these animals is most likely an omnivore? m. Chicken\ b. Cow\ c. Carabao\ d. Snake 35. During a field trip, your class goes to a zoo and sees a monkey eating bananas and a few pieces of meat given by the zookeeper. How would you classify the monkey based on what it eats? n. Herbivore\ b. Carnivore\ c. Omnivore\ d. Detritivore 36. Which of the following food chains correctly represents the flow of energy in a Philippine ecosystem? a\. Rice plant → Carabao → Eagle\ b. Coconut tree → Monkey → Snake\ c. Grass → Grasshopper → Frog → Snake\ d. Banana tree → Fruit bat → Snake → Eagle 37. In a food chain found in the Philippine rainforest, a fruit bat eats bananas and is then eaten by an eagle. What role does the eagle play in this food chain? a\. Herbivore\ b. Carnivore\ c. Omnivore\ d. Producer 38. If a Philippine farmer notices a carabao eating grass, and later sees an eagle catching a snake, which of the following describes the role of the carabao in the food chain? a\. Carnivore\ b. Herbivore\ c. Omnivore\ d. Producer 39. In a mangrove ecosystem in the Philippines, if a mudskipper eats algae and is then eaten by a heron, what would happen if the number of herons greatly increased? a\. The number of mudskippers would decrease.\ b. The number of algae would increase.\ c. Both mudskippers and algae would increase.\ d. Herons would become omnivores. 40. Which of the following organisms is considered an omnivore in a Philippine food chain? a\. Tarsier\ b. Grasshopper\ c. Chicken\ d. Carabao