1. Unit 4 Astronomy: the science of the stars

2. Twinkle twinkle little star How I wonder what you are Up above the world so high Like a diamond in the sky Twinkle twinkle little star How I wonder what you are Stars

3. What is “Astronomy”? Astronomy scientific study universe, such as the sun, the moon, etc. Astronomy is the scientific study of the universe, such as the sun, the moon, etc.

4. astronomerastronaut A scientist who studies the universe A professional space walker (cosmonaut, taikonaut) Astronomy

5. Can you name the eight planets that circle around the sun?

6. 海王星 Neptune 水星 Mercury 金星 Venus 地球 Earth 火星 Mars 木星 Jupiter 土星 Saturn 天王星 Uranus Eight Planets

7. Scientists now think it is too small to be called a planet. There used to be nine planets in the solar system. However, recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of that planet? Do you know why they removed it?

8. The Solar System

10. Do you know how our life began on the earth? Do you know any stories about the beginning of the universe? (Group work) Each religion or culture has its own ideas about how life began on earth?

11. Holy Bible Day 1: God separated light from darkness, creating Day and Night. Day 2: God separated the waters, creating Sky. Day 3: God let the dry land and waters be together, creating Earth and Sea.

12. Holy Bible Day 4: God created the sun, moon and stars. Day 5: God created living creatures in the air and sea. Day 6: God created the land animals and humankind. Day 7: God rested and blessed this day, calling it Holy.

13. The Story of Pan Gu

14. Pan Gu separated the earth and the heaven. After he died, his arms and legs became four directions and mountains; blood became rivers; sweat became rain and dew[ 露珠 ]; voice became thunder; breath became winds; hair became grass; veins[ 血管 ] became roads and paths; teeth and bones became minerals and rocks; fresh became soil of the fields; his left eye became the sun and right eye the moon.

15. How life began on the earth?

16. Common Questions How did the universe begin? How did the earth begin? How did life begin on the earth?

17. How did the universe begin? widely accepted theory

18. Big Bang Theory The Big Bang is the highly supported theory of the origin of the universe. In essence, this theory states that the universe began from an initial point which has expanded over billions of years to form the universe as we now know it.

19. [ _________ ] The formation of the earth Big Bangstars [ _____________ ] [ ___________ ] ______settled explode with… produce… atmosphere a solid globe a cloud of dust water

20. The importance of water Why are there no life on Mars? ______ is fundamental to the development of life.Water The continued presence of water (dissolve harmful gases and acids into the oceans) chain reaction produce

21. water small plants in watershellfish and fish green plants on land

22. insects and amphibians mammals reptiles dinosaurs

23. Man had evolved from apes.

24. Paragraph 1 Paragraph 2 Paragraph 3 Paragraph 4 Paragraph 5 A widely accepted theory about the formation of the universe The formation of the earth The importance of water for life The development of plants and animals on the earth The arrival of humans and their impact on the earth Main Body

25. It was full of water. original cells The cells in the water began to separate.

26. make watch wonder be cool multiply begin exist explode Where do we come from? How did the universe ______? When we ______ the stars through the telescope, we _______ why the universe ______. After the “Big Bang”, the earth ____ just a cloud of dust. Somehow it ________ loudly with fire and rock, which _____ the earth’s atmosphere. As the earth ______ down, water ______ to appear on its surface, which was important for the beginning of life. Then living things __________ on the earth. begin watch wonder exists was exploded made cooled began multiplied