Grade 7 science 4th Quarter M1
Download as PPTX, PDF59 likes37,007 views
This document provides information about the 7th grade science unit on earth and space. It discusses key concepts like latitude and longitude and how they are used to describe locations. Lines of latitude run parallel to the equator and are used to measure positions north and south, while lines of longitude run from the North Pole to the South Pole and are used to measure positions east and west. Together, latitude and longitude provide an exact way to specify locations on Earth. The document also explains how latitude affects climate, with locations closer to the equator generally being warmer and those closer to the poles being colder.
Grade 7 science 4th Quarter M1
- 1. GRADE 7 SCIENCE UNIT 4 EARTH AND SPACE ALFRED GENOVA GICO SCIENCE TEACHER
- 6. WHAT MAKES UP OUR ENVIRONMENT? Everything that we see around us makes up our environment. The landforms and bodies of water that make up the landscape, the mountains and valleys, rivers and seas; the climate, the rains brought by the monsoons, the warm, humid weather that we frequently experience; the natural resources that we make use of; every plant and animal that live around us
- 7. • All these things that we find in our surroundings and all the natural phenomena that we observe are not due to some random luck or accident. • What makes up our environment is very much related to where our country is on the globe. Or, to say it in a different way, the characteristics of our environment are determined by the location of the Philippines on the planet.
- 8. Activity 1 Where in the world is the Philippines? (Part I) Objective After performing this activity, you should be able to describe the location of the Philippines using latitude and longitude.
- 9. 1. Study the image of a globe on the right. Then get a real globe and identify the parts that are labelled in the image. 2. After studying the globe and the image on the right, try to define “equator” in your own words. Give your own definition when your teacher asks you. 3. The “northern hemisphere” is that part of the world between the North Pole and the equator. 4. Where is the “southern hemisphere”?
- 10. 5. Study the drawing on the right. It shows the lines of latitude. Q1. Describe the lines of latitude. Q2. Show the lines of latitude on the globe when your teacher asks you. Q3. The starting point for latitude is the equator. The equator is at latitude 0° (0 degree). At the North Pole, the latitude is 90°N (90 degrees north). At the South Pole, the latitude is 90°S (90 degrees south). Show the following latitudes when your teacher calls on you: 15°N; 60°N; 30°S; 45°S. Q4. The globe does not show all lines of latitude. If you wish to find 50°N, where should you look?
- 11. 6. Study the drawing on the right. It shows the lines of longitude. Q5. Describe the lines of longitude. Q6. Show the lines of longitude on the globe. Q7. The starting point for longitude is the Prime Meridian. The Prime Meridian is at longitude 0°. Show the Prime Meridian on the globe.
- 12. Q8. To the right of the Prime Meridian, the longitude is written this way: 15°E (15 degrees east), 30°E (30 degrees east), and so on. To the left of the Prime Meridian, the longitude is written as 15°W (15 degrees west), 30°W (30 degrees west), and so on. On your globe, find longitude 180°. What does this longitude represent?
- 13. Q9. Not all lines of longitude are shown on a globe. If you want to find 20°W, where should you look? Q10. The location of a place may be described by using latitude and longitude. To the nearest degree, what is the latitude and longitude of Manila? Q11. Compared to the size of the world, Manila is just a tiny spot, and its location may be described using a pair of latitude and longitude. But how would you describe the location of an “area” such as the whole Philippines?
- 15. Equator is an imaginary line on the surface, equidistant from the North and South Poles, dividing the Earth into Northern and Southern Hemispheres Q.1. What is an equator?
- 16. Q2. What is latitude Lines of latitude: - are parallel to the equator and to each other - - form circles that are smaller at the poles - - do not meet
- 18. Q3. Describe the lines of longitude. - are not parallel to each other - do not form circles - - meet at the poles (or extend from pole to pole) - - have the same length
- 20. EXACT LOCATION: 14.5995° N, 120.9842° E Q4. The location of a place may be described by using latitude and longitude. To the nearest degree, what is the latitude and longitude of Manila? Possible answer: Latitude - 15° Longitude – 120°
- 21. Q11. Compared to the size of the world, Manila is just a tiny spot, and its location may be described using a pair of latitude and longitude. But how would you describe the location of an “area” such as the whole Philippines? Locating cities such as Manila is easy. Manila is just a “spot” on the globe. But locating a whole country like the Philippines may be challenging because the country is not a “spot,” it is an “area.” Since the boundary of the Philippines (or any country, for that matter) is irregular, we can simplify things by drawing a rectangle around the Philippines.
- 22. Now you know how to describe the location of a certain place using latitude and longitude. The lines of latitude are also known as parallels of latitude. That is because the lines of latitude are parallel to the equator and to each other. Five lines of latitude have special names.
- 24. Exercise 1: Identify the city nearest to the following rounded latitudes and longitudes. Given: Latitude, Longitude Answer: Nearest city 41°N, 74°W 56°N, 38°E 12°S, 77°W NEW YORK MOSCOW LIMA
- 26. Countries that are located Tropic of Cancer and the Tropic of Capricorn (Tropical zone) experience a tropical climate where the annual average temperature is above 18°C.
- 27. Between the Tropic of Cancer and the Arctic Circle is the northern temperate zone; between the Tropic of Capricorn and the Antarctic Circle is the southern temperate zone. Countries in these zones go through four seasons – winter, spring summer, and autumn.
- 28. The areas within the Arctic Circle and Antarctic Circle are called the polar regions or frigid zones. People who choose to live in these areas have to deal with temperatures that never go above 10°C. It is cold all year round and even during the summer months, it does not feel like summer at all.
- 30. To sum up: the closer the latitude is to the equator, the warmer the climate. The closer it is to the poles, the colder. Thus, it is clear that there is a relationship between the latitude of a place and the climate it experiences.
- 31. 1. What line divide the earth north and south direction? A. Longitude B. Latitude C. Equator D. Prime Meridian
- 32. 2. What is a flat representation of the earth that show location of different places? A. Globe B. Top C. Model D. Map
- 33. 3. Which of the following is used to describe the 0° longitudinal line that runs through Greenwich, England? A. Great circle B. Principle line C. Longitudinal maximum D. Prime meridian
- 34. 4. Which of the following is an exact representation of the earth? A. Globe B. top C. model D. map
- 35. 5-7. Differentiate latitude from longitude. ( 3 points)
- 36. Match the lines of latitude (column A)with its corresponding zone to column B. A B 8. Tropic of Cancer and a. polar regions the tropic of Capricorn b. tropical zone 9. At Arctic Circle c. temperate zone and Antarctic Circle 10. Between the Tropic of Cancer and the Arctic Circle