Astronomy:the science of the stars The universe is made up of stars, planets, and other matter scattered throughout space.

Slides:



Advertisements
Similar presentations
Astronomy: the science of the stars Warming up and reading.
Advertisements

PLANETS.
Solar System by Allyssa Murrelle
Solar System 太陽系 P.6 2 nd Term General Studies Syllabus Produced by : Thomas CHAI Yan Piau.
The Solar System By Level Two.
The Solar System Models Formation Inner Planets Outer Planets Other Objects in Space.
Solar System.
PLANETS LO: I will identify the known planets of the solar system.
 Mercury takes only 88 Earth-days to make one orbit around the Sun.  During the day, temperatures can reach over 800° F.  The craters were caused.
Structure & Formation of the Solar System
Space Flight to the Stars. Celestial Objects “ Celestial” means sky Objects we can see in the sky such as the Sun, Moon, Earth and other planets are all.
3 rd Grade. The Sun is a star. The Sun is the center of the solar system.
TheThe Nine Planets The Learning about our Solar System.
The Earth and the Solar System STD: VI. Knowing about the universe All the objects we see in the sky are called heavenly bodies or celestial bodies. They.
Part 1: The evolution of the solar system. Origin of the Universe Lesson 1.
OUR SOLAR SYSTEM By Joey Quattrini
OUR SOLAR SYSTEM Our solar system is nearly 5 billion years old.
Unit 1 Lesson 1 Structure of the Universe
SPACE The Moon The Sun Stars Planets Mercury Venus Earth Mars Jupiter
The Beginning of the Universe The universe was created billion years ago in an event known as the big bang The universe started at an incredibly.
Where in the universe are we?. What is the universe? Everything that exists is part of the universe. Our universe is a large expanse of dust, gas, stars,
 Earth tilts at 23 ° and causes the seasons.  Earth revolves around the Sun.  The moon revolves around the Earth.  Moon reflects the sun’s rays and.
Asteroid  Chunks of space rock that orbit the Sun, mostly between Mars and Jupiter.
AIM: HOW DO STARS FORM? DO NOW: How many stars are in our Solar System? Homework:
Unit 4 Astronomy: the science of the stars Universe.
The Big Bang! (pg 20). Origins How did the: How did the: Universe form? Universe form? Solar system / Earth form? Solar system / Earth form? How Do We.
Period One. Aims & Tasks of Unit 4 Astronomy: the science of the stars 1. topics 2. functional items 3. structures 4. reading 5. writing 1. Science of.
The Solar System.
Other Objects in the Solar System (13.15). Planetary Moons Large natural objects that revolve around planets are called satellites or moons. Moons range.
Astronomy: Unit 4 the science of the stars Xingning No.1 Middle School: He Zhixin.
The Solar System Science Third Grade The solar system is the sun and the objects that orbit around it.
The Solar System The “Final Frontier”. The Night Sky  When you look up into the sky at night, you see the moon, but there are also other things that.
Unit 4 Astronomy: the science of the stars Step 1 Warming up Do you know how many planets circle around the sun in our solar system ? What are they?
Our Solar System By Abigail Stivala.
The Sun The center of our solar system A main sequence yellow star Is powered through Nuclear fusion. A reaction where 2 atoms of Hydrogen are forced together.
Big Bang theory Parts of our solar system Planet characteristics Galaxies Constellations Nebulas.
Other Objects in the Solar System (13.15)
Our Solar System is in the Milky Way Galaxy. Our Solar System has eight planets (plus dwarf planets) that orbit the sun. The Earth is one of the planets.
The Solar System By Megan Zelenka and Sophia Yearoo.
Do you know the position of the earth? The Solar system 水星 金星 火星 木星 土星 天王星 海王星.
Our Solar System  Our solar system has 8 planets and 1 dwarf planet.  Our sun is in the middle of the solar system.
How Life Began on the Earth Period 1 Unit 4 Astronomy: the science of the stars the science of the stars.
新课标人教版课件系列 《高中英语》 必修 Do you know each religion or culture has its own ideas about the beginning of the universe? 1.Pangu separates the sky from.
The Earth and Other Planets
高一必修 3 Unit 4 Astronomy the science of the stars.
ACTIVITY 1. For distances to stars and galaxies, astronomers use a unit called a light- year. A light-year is the distance that light travels in a year.
EXPLORING SPACE EXPLORING SPACE.
Our Solar System The Milky Way. How our solar system formed Big Bang Theory –There was a huge explosion billion years ago. –Spread matter in all.
The Sun is our closest star. Is a member of the Milky Way galaxy. Is a medium size star and it’s a class G2. It is believed to be about 4.6 billion.
Unit 4 Astronomy: the science of the stars. Twinkle twinkle little star How I wonder what you are Up above the world so high Like a diamond in the sky.
SUN Diameter 1.39 million km Gravitational Pull 28 times that of Earth
广州市教育局教学研究室英语科 Module 3 Unit 4 Warming up Astronomy: the science of the stars 广州市第三中学 余丽萍、张蓉、吴小虹.
Unit 4 Astronomy: the science of the stars (reading)
Solar System Video: 1 How it Formed.
TC’s Space project A Tour Through Space. Sun The sun is a star. The sun is a star. Because it’s much closer to us it looks very hot and bright. Because.
Space By Bella, Nicole, and Calli. SWhat is the Solar System?s a olar System? The Solar System began 5 billion years ago. There were 9 planets, but scientists.
Ch. 20 and 21.  Our solar system has been here for awhile  5 billion years!  It formed from a solar nebula  Clouds of dust in space that combined.
必修 3 Unit 4 马林霞. Welcome to… HOW LIFE BEGAN ON THE EARTH? What was there on the earth before life could begin? Why do scientists think there has never.
Structure of the Universe Unit 1 Lesson 1. Big Bang Theory Scientific origin of the Universe 1.All matter in the universe began moving together to a single.
The Planets of Solar System By Matthew and Richard.
 How are the inner and outer planets similar and different?
Unit 5 Lesson 2. Vocabulary  Solar System: A star and all the planets and other objects that revolve around it.  Planet: A body that revolves around.
the sun The sun is the star at the centre of the solar system The sun fuses 620 million metric tons of hydrogen each second.
 Earth  Earth is a planet (a celestial body that orbits the sun)  The earth is round because of gravity.  It is the only planet that sustains life.
Unit 4 Astronomy: the science of the stars Para.1 Para.2 Para.3 Para.4 Para.5 A________ about how the universe was formed The__________ of the earth.
Unit 4 Astronomy: the science of the stars. Warming up 1.What words will you think of when we talk about “ astronomy ” ? What interest you most? 2. How.
the universe solar system planet Reading How life began on the earth?
Unit 4 Astronomy: the science of the stars 树兰中学 Zhao Shuhui.
the science of the stars
The Science of the Stars
Presentation transcript:

Astronomy:the science of the stars

The universe is made up of stars, planets, and other matter scattered throughout space.

The Milky Way is a large spiral galaxy ( 螺旋星系) measuring about 100,000 light-years across. It is about 14 billion years old and takes 225 million years or so to rotate ( 旋转) once. Like all spirals, it contains plenty of gas and dust, from which new stars are formed. The dense nucleus ( 核心) is the oldest part and has no gas left for new star.

The Solar system 1.Mercury( 水星 ) 4.Mars (火星) 7.Uranus (天王星) 2.Venus( 金星 ) 5.Jupiter (木星) 8.Neptune (海王星) 3.Earth( 地球 ) 6.Saturn (土星) 9.Pluto (冥王星)

Our solar system is made up of the sun and the objects that orbit it. These include the nine planets (and probably more than nine) and their moons, as well as asteroids ( 小行星 ), comets, and meteors ( 流星). The sun is the nearest star to the earth. It is a globe of hot gas, mostly hydrogen (. 氢), and lies at the center of our solar system. It contains no solid material. Stars are large balls of hot gas that produce light and heat through nuclear reactions. Our Sun is an average yellow star, but seems bright because it is so close. Mercury The Roman god of merchants and travellers Venus The Roman goddess of love Mars The Roman god of war Jupiter The king of the Roman gods Saturn The Roman god of seeds and sowing Uranus The Greek god of the sky Neptune The Roman god of the sea Pluto The Roman god of the dead

Stars are large balls of hot gas that produce light and heat through nuclear reactions. Our Sun is an average yellow star, but seems bright because it is so close. Planets are the largest objects that circle around the stars. They may be rocky, like the earth, or made mostly of gas and liquid, like Jupiter. The word planet is Greek for "wanderer." The name comes from the way planets appear to move against the stars over time. It is thought that the planets formed at about the same time as the sun. As the original cloud of gas and dust collapsed to for the sun, some matter was spun out into a flattened disk. Over several million years, the dust and gas gathered together to form the planets and moons. Denser rocks gathered near the sun and lighter gases farther out.

Our planet, the earth, is a large ball of rocks and metals covered with water and soil. It belongs to a group of nine planets that move around a star called the sun. It is surrounded by a blanket of gases called the atmosphere, has one moon, and as far as we know, is the only planet that supports life.

NASA’s Mars detector ( 探测器 ),Opportunity, succeeded in finding signs that water once existed on the planet. Opportunity landed on Mars in January. Scientists now believe that the planet could once have supported life.“Although we still can’t say that life could have existed in this environment, it is now certain that there was water on Mars,” said one of the scientists working on the Mars mission. ( 任务 )

How Life Began on the Earth

Discussion: 1.Life is a mystery to our beings.Scientists study the origin of life by exploding space. Do you really think space fights are meaningful? Discuss the advantages and disadvantages of space flights. 2.Why is the earth the only one of all the planets on which life can survive? Has life started in other stars except on the earth?

Read“How Life Began on the Earth”,then answer the following questions: 1. What’s the main idea of the text? 2. How many parts can the text be divided into? What’s the main idea for each part? Two parts: Part1(para1):Water made it possible for life to begin to develop. Part2(para2,3,4): The development of living things. Main idea: How life begin on the earth

Read Part1 and answer questions: 1.How did water come into being on the earth? 2.What’s the significance of the presence of water on the earth? It allowed the earth to dissolve harmful gases into oceans and seas. The explosion of the earth produced water vapour, which turn into water when the earth cooled down.

Read Part2 and answer questions: 1.Why were mammals different from dinosaurs? Because they produce their young from within their bodies. 2.Fill in the diagram: Small plants in water shellfish and all sorts of fish 3. Green plants on land 4.insects(on land) 5.amphibian on land in water 6.forests 7.reptiles on land 8. Dinosaurs on land 9.mammals on land

Read“How Life Began on the Earth”,fill in the diagram of life’s origins and process: Harmful gases 1. Plants in the seas Land plants2. Insects Amphibians Reptiles Dinosaurs Mammals including 3_____________ The human beings water land animals

1. The Big Bang is the term used to describe a huge explosion that scientists believe happened around 15 billion years ago, creating our universe. Nobody knows what caused the Big Bang, since we cannot look back to a time before it. But just after the event, the universe is believed to have been a knot of tightly packed particles only about the size of a pea. Its temperature was ten thousand trillion, trillion degree Celsius.

Homework: discussion: 1.Why is the presence of plants important for the development of life? 2.Is the earth getting warmer each year? If so, what effects will this have? What’s the “green house effect,” which some scientists say might destroy our plant? Will the burning of coal, oil, and natural gas cause the earth to become a dead planet like Venus?

Goodbye !