1. Unit 1. The Earth

2. Index 1. All about Planet Earth 2. Earth movements 3. The seasons
4. A living planet
5. The climate
6. The terrestrial crust
7. Atmospheric phenomena
8. Ecosystems (biomes)

3. 1. All about Planet Earth
Let’s see how much you know about our planet…
What does the planet look like?
How long does it take to orbit the sun? And around the sun?
How long does it take to rotate on an imaginary axis?
How many continents and oceans does the Earth have? Do you remember their names?
How many moons does the Earth have?
Do you know de distance from the Earth to the Sun?
What is the composition of the Earth?
Is the Earth the biggest planet? Is the only place where life exists?

4. Fabiola Martínez Castillo
How many planets are there in our Solar System? Where are the Earth and the moon? Do you know their names?
The Solar System is made up of a star and celestial bodies (planets, satellites, asteroids, and comets) that orbit it. The star in our Solar System is the Sun.
Fabiola Martínez Castillo

5. GUESS: What is The Sun? THE SUN IS… 1. A STAR 2. A PLANET
3. A SATELLITE

6. GUESS: What are the names of the planets in the Solar System???

7. Fabiola Martínez Castillo
Contients and oceans
Artic ocean
North America
EUROPE
ASIA
Atlantic ocean
Pacific ocean
Pacific ocean
AFRICA
South
America
AUSTRALIA
Atlantic Ocean
Indian ocean
ANTARCTICA
Fabiola Martínez Castillo

8. THE EARTH IS ROUND AND HAS TWO PARTS, CALLED HEMISPHERES
NORTHERN HEMISPHERE
SOUTHERN HEMISPHERE

9. THE EARTH HAS TWO POLES, BIG AREAS OF ICE AND SNOW
NORTHERN POLE
SOUTHERN POLE

10. GUESS: WHAT IS THIS? NORTHERN POLE NORTHERN HEMISPHERE
SOUTHERN HEMISPHERE
SOUTHERN POLE

11. WELL DONE!!

12. Fabiola Martínez Castillo
The layers of the Earth
Fabiola Martínez Castillo

13. 1. All about our Planet Earth
Moons: 1
Year: 365 Days
Day: 24 hours
Distance from the Sun: 3rd planet from the sun, 93 million miles
The only planet where life exists.
Geography of Earth
The Earth has seven large land masses called continents. The continents include Africa, Asia, North America, South America, Europe, Oceania, and Antarctica. The surface of the planet is approximately 71% water and contains (5) five oceans, including the Arctic, Atlantic, Indian, Pacific and Southern
Composition of the Earth
The Earth is composed of a number of layers. On the outside is a rocky layer called the Earth's crust. Below this we can find the mantle followed by the outer core and the inner core.
The Earth's Moon
The Earth has one moon or natural satellite. You've probably seen it! The Earth's moon is the fifth largest moon in the solar system.
Fabiola Martínez Castillo

14. Fabiola Martínez Castillo
2. Earth movements
Fabiola Martínez Castillo

15. Fabiola Martínez Castillo
ROTATION
As it rotates, some places are iluminated by the Sun, day time, while others remain dark, night time.
Fabiola Martínez Castillo

16. 2. The Earth’s movements ROTATION THE EARTH TURNS ON ITS AXIS.
DAY
IT TAKES 24 HOURS TO COMPLETE A ROUND
NIGHT

17. REVOLUTION

18. 2. The Earth’s movements REVOLUTION THE EARTH ORBITS THE SUN.
IT TAKES 1 YEAR TO COMPLETE A ROUND
SEASONS

19. 2. The Earth’s movements
AXIS
The Earth’s position in relation to the Sun changes throughout the year because it has a tilted axis. The Sun’s rays reach the Northern Hemisphere at different times of year.

20. The Sun’s rays are more intense
Earth’s movements
The Sun’s rays are more intense

21. Earth’s movements
The intensity of the sunlight received on the Earth is different at different times of the year.

22. Moon movement THE MOON ORBITS THE EARTH. It is a satellite.
IT TAKES 28 DAYS TO COMPLETE A ROUND

23. GUESS: WHAT ARE THESE?
WINTER
AUTUMM
SPRING
SUMMER

24. Fabiola Martínez Castillo
3. The seasons
It starts on the 21st of March. The daylight hours are longer than the night and the weather is temperate and rainy.
It starts on the 21st of June. The daylight hours are longer than the night and the weather is hot and dry.
It starts on the 23rd of September. The daylight hours are shorter than the night and the weather is cool and rainy.
It starts on the 21st of December. The daylight hours are shorter than the night and the weather is very cold.
Fabiola Martínez Castillo

25. Fabiola Martínez Castillo
2. The Earth’s movements
2. The Earth’s movements
The Earth’s movements are two: rotation and revolution.
Rotation: the Earth turns on its axis. It takes 24 hours (1 day) to complete a round. This movement causes day and night.
Revolution: The Earth orbits the Sun. It takes 365 days (1 year) to complete a round. This movement causes the seasons because the intensity of the sunlight received on the Earth is different at different times of the year.
The Earth’s position in relation to the Sun changes throughout the year because it has a tilted axis. The Sun’s rays reach the Northern Hemisphere at different times of year. That is why we have opposite seasons in the Northern and Southern Hemispheres.
The seasons:
Spring: It starts on the 21st of March. The daylight hours are longer than the night and the weather is temperate and rainy.
Summer: It starts on the 21st of June. The daylight hours are longer than the night and the weather is hot and dry.
Autumn:It starts the 23rd of September. The daylight hours are shorter than the night and the weather is cool and rainy.
Winter: It starts on the 21st of December. The daylight hours are shorter than the night and the weather is very cold.
Fabiola Martínez Castillo