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

Twinkle twinkle little star

How I wonder what you areStars

What is “Astronomy”?

AstronomyAstronomy is the scientific studyscientific study of the universe, such as the sun, the moon, etc.universe, such as the sun, the moon, etc.

astronomer astronautA scientist who studies the universe

A professional space walker

(cosmonaut , taikonaut)

Astronomy

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

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

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?

The Solar SystemThe Solar System

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?

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.

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.

The Story of Pan Gu

The Story of Pan Gu

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.

How life began on the earth?

Common Questions

• How did the universe begin?

• How did the earth begin?

• How did life begin on the earth?

How did the universe begin?

widely accepted theory

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.

[ _________ ]

The formation of the earth

Big Bang stars [ _____________ ]

[ ___________ ]

______settled

explode with…

produce…

atmosphere

a solid globe

a cloud of dust

water

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

water

small plants in water shellfish and fish

green plants on land

insects and amphibians

mammals

reptiles

dinosaurs

Man had evolved from apes.

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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

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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.

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cooled began

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