MATERI SLIDE TANTANG UNI SEBELAS MPAH_PPT6_U11.pptx

slide science grade 6

1. My Pals are Here! Science International (2nd Edition) GRADE 6

2. UNIT 11 THE SOLAR SYSTEM

3. At the end of this section , you should be able to answer the following questions : What makes up the solar system? What are the characteristics of the planets in the solar system? 11.1 What Is The Solar System?

4. 11.1 What Is The Solar System? What makes up the solar system? The solar system is made up of the Sun and objects that move around it, including the eight planets and other smaller objects. The planets have different characteristics. Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

5. Explore Smaller objects such as asteroids, comets and dwarf planets are also part of the solar system.  In groups, find out more about these objects and share with the class. 11.1 What Is The Solar System?

6. Research Pluto was considered to be the ninth planet in the solar system. In 2006, it was reclassified as a dwarf planet. Find out why. 11.1 What Is The Solar System?

7. 11.1 What Is The Solar System? What is the size of each planet and its distance from the Sun? The size of each planet is measured by its diameter. Diameter is the longest distance from one side of the planet through its centre, to the opposite side.  diameter

8. 11.1 What Is The Solar System?

9. 11.1 What Is The Solar System? What is the temperature of each planet? The period of revolution refers to the time taken for a planet to revolve around the Sun once. Generally, the further away from the Sun a planet is, the longer its period of revolution is. The temperature of a planet depends mainly on its distance from the Sun.  Generally, the closer a planet is to the Sun, the hotter it is. What is the period of revolution of each planet around the Sun?

10. 11.1 What Is The Solar System?

11. Language Connect Imagine that you are in outer space. Write three sentences to describe the planets. How are they different from one another? 11.1 What Is The Solar System?

12. At the end of this section , you should be able to answer the following question: 11.2 What Causes Day and Night? What causes day and night?

13. The Earth spins or rotates on its axis, like a top. It takes 24 hours or about a day to make one rotation. How do day and night occur? axis 11.2 What Causes Day and Night?

14. Due to the spherical shape of the Earth, light from the Sun can shine only on one side of the Earth at a time. As the Earth rotates, the side facing the Sun experiences day. The side facing away from the Sun experiences night. 11.2 What Causes Day and Night?

15. At the end of this section , you should be able to answer the following question: What causes seasons? 11.3 What Causes Seasons?

16. 11.3 What Causes Seasons? How do seasons occur? To understand how seasons occur, we must first understand some properties of the Earth.  tilted axis The axis of the Earth is tilted.  The equator is an imaginary line around the middle of the Earth, separating the Earth into two parts — Northern Hemisphere and Southern Hemisphere.  equator Northern Hemisphere Southern Hemisphere

17. 11.3 What Causes Seasons? The Earth rotates on its axis and revolves around the Sun at the same time. 

18. December June March September 11.3 What Causes Seasons? As a result, different parts of the Earth receive different amounts of heat and light from the Sun throughout the year.  The Northern Hemisphere receives indirect sunlight and experiences winter. The Southern Hemisphere receives direct sunlight and experiences summer. The Northern Hemisphere receives direct sunlight and experiences summer. The Southern Hemisphere receives indirect sunlight and experiences winter.

19. Research Use the Internet to find a resource that demonstrates how the revolution of the Earth causes seasons. 11.3 What Causes Seasons?

20. At the end of this section , you should be able to answer the following question: How do lunar and solar eclipses occur? 11.4 What Are Lunar And Solar Eclipses?

21. Lunar eclipse 11.4 What Are Lunar And Solar Eclipses? What is an eclipse? An eclipse occurs when an object in the solar system forms a shadow on another object as it moves between the Sun and that object. The umbra is the area where sunlight is fully blocked. The penumbra is the area where sunlight is partially blocked.  The most common eclipses as seen from the Earth are solar eclipses and lunar eclipses. Solar eclipse

22. 11.4 What Are Lunar And Solar Eclipses? What is a solar eclipse? A solar eclipse occurs when the Moon gets between the Sun and the Earth.  The shadow of the Moon falls on the Earth, partially or fully blocking sunlight. Earth umbra penumbra Moon sunlight

23. Earth umbra penumbra Moon sunlight penumbra 11.4 What Are Lunar And Solar Eclipses? What is a lunar eclipse? The shadow of the Earth falls on the Moon, partially or fully covering the Moon. A  lunar eclipse occurs when the Earth gets between the Sun and the Moon. 

24. Research Every month, the Moon goes completely around the Earth once. Find out why eclipses do not happen every month. 11.4 What Are Lunar And Solar Eclipses?

25. What We Have Learnt

26. Science Glossary Axis Imaginary line about which an object rotates Penumbra Outer part of a shadow, where light is partially blocked Diameter Longest distance between two sides of a sphere that passes through the centre of the sphere Planet Large object in space that revolves around a star Eclipse Event that occurs when an object in the solar system is partially or completely blocked by another object Solar system System made up of the sun and objects that move around it Hemisphere Half of a sphere Umbra Dark inner part of a shadow, where light is fully blocked

27. Acknowledgements Slide 2, Earth – ID 132162433 © Ievgenii Tryfonov | Dreamstime.com Slides 4, 8 and 10, solar system © janez volmajer | 123rf.com