1. UNIT 1
THE EARTH, A PLANET IN THE SOLAR SYSTEM
Activity 1: The Universe and the Solar system
1.1. Match each word with its definition
1.2. Identify the star and the planets of the Solar system and write their names
Names: Earth, Jupiter, Eris, Neptune, Sun, Pluto, Uranus, Mercury, Ceres, Saturn,
Venus, Mars
1.3. Write the name of a…

2. 1.4. Complete the sentences with the following words: Ceres, Moon, Galaxy, Solar,
satellite, Milky, dwarf.
a) Our _______ system has four _______ planets: _______, Pluto, Charon and Eris
b) The name or our _______ is “The _______ Way”
c) The Earth´s _________ is the _______
Activity 2: The Earth: shape and movements
2.1. Identify each part of the Earth
2.2. Guess the meaning of these words: Crust, Mantle, Core, Lithosphere,
Asthenosphere. Check with your teacher or a dictionary

3. 2.3. Rotation movement. Match each word with its definition
2.4. Translation movement. Order the words to make sentences.
a) rotates / the sun / orbit / in / The Earth / an elliptical / around
b) to complete / 365 days / The Earth / this movement / and 6 hours /employs
c) are added / in February / These 6 hours / in leap years / every 4 years
d) the seasons / The inclination / causes / axis / of / rotation / the Earth´s

4. 2.5. Complete the chart with the following words
Day of change of season: June 21st / March 21st / December 21st / September 23rd
The sun´s rays are perpendicular to…: Tropic of Cancer, Equator, Tropic of
Capricorn
Heat stroke is…: Higher in the …… hemisphere / Same in both hemispheres
In the northern hemisphere begins…: Winter, Spring, Autumn, Summer
In the southern hemisphere begins…: Winter, Spring, Autumn, Summer
2.6. Write the name or each season and a sentence describing it. Complete the
answers too.
Activity 3: Review activities
3.1. Complete the sentences with the following words: hemispheres, Ceres, Ecuador,
blue, Moon, translation, Galaxy, poles, Solar, satellite, rotation, sphere, Milky, dwarf,
Earth.
a) Our _______ system has four _______ planets: _______, Pluto, Charon and Eris
b) The name or our _______ is “The _______ Way”
c) The Earth´s _________ is the _______
d) The ________ from space has a bluish colour, so we called the _______ planet

5. e) The Earth is a geoid or an imperfect _______ slightly flattened at the ______
f) The Earth makes two movements: __________ and __________
g) _______ is the imaginary line that divides the earth into two equal parts, or
__________, north and south
3.2. Write translations and try to remember these words.
© Reyes Carrasco 2010