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NATURAL SCIENCES UNIT 2. Earth’s physical characteristics

Worksheet 2.1

1. Why the Earth is called the "Blue Planet"? ............................................................................. ........................................................................................................................................................................... ...........................................................................................................................................................................

2. How is called the envelope of gases surrounding the Earth? ......................................... 3. Point out in the following picture of the Earth which is the North Pole, South Pole. ......................................................................

..................................

..............................

.................................

4. What movement of the Earth is represented in the following picture? ....................

Earth

Orbit

Sun

5. On Earth, the seasons are caused by two reasons. Wich are these two reasons?.: 1) ............................................................................................................................................. 2).............................................................................................................................................


NATURAL SCIENCES UNIT 2. Earh’s physical characteristics

Worksheet 2.2

1. Which are the three layers that is divided the Earth?...................................... ……………………………………………………………………………………………………………….

2. Delete of the following lists the terms that are not related to the Earth movements: translation (1st list) and rotation (2nd list): Translation

Rotation

24 hours Days and nights 365 days, 6 hours y 9 minutes Movement around the sun Seasons Orbit Rotates on itself

24 hours Days and nights 365 days, 6 hours y 9 minutes Movement around the sun Seasons Orbit Rotates on itself

3. Macht the images on the left with the right terms: ▪

Full moon

Crescent moon

New moon

Waning moon

4. Complete the following sentences: The atmosphere is the layer of Earth made up of .................................... The hydrosphere is the layer of Earth made up of .................................... The geosphere is the layer of Earth made up of ..................................... The geosphere is divided in three layers: ................................................................................. The Moon phases are: .............................................................................................................. The seasons are: ...................................................................................................................... Earth makes two movements: .................................................................................................

5. ¿ Which are the three layers that is divided the geosphere?...................................... ………………………………………………………………………………………………………………...


NATURAL SCIENCES UNIT 2. Earh’s physical characteristics

Worksheet 2.3

1. How is called the inner layer of the geosphere that is formed by molten rocks? ............................................................ Why rocks are melted? ........................................................... ............................................................................................................................................................................

2. Put in order the layers of the Earth. First, the outermost and innermost finally: Atmosphere

1st

Core

2sd

Crust

3th

Hydrosphere

4th

Mantle

5th

3. Macht each season with the starting date: Spring ■

December 21 or 22

Autumn ■

March 20 or 21

Summer ■

September 22 or 23

Winter ■

June 21

4. Write the mane of the Moon phases:

............................

............................

............................

............................

5. Draw the right posición of Earth, Moon and Sun in a solar eclipse.

6. How is called the gas in the atmosphere that living beings need to breathe? .......................................


NATURAL SCIENCES UNIT 2. Earth’s physical characteristics

Worksheet 2.4

1. Look at the picture and answer the following questions: - Write in what part of the Earth is day and in what part is night. - Where is located the Sun, in the right or left? ..........................................

……..……..

……..……..

2. Match the terms of the two columns:

Translation ■

Seasons 24 hours

Rotation ■

365 days, 6 hours y 9 minutes

Sequence of “days” and “nights”

3. Complete the following sentences: • Summer begins on .......................................................... • Spring begins on.............................................................. • Autumn begins on........................................................... • Winter begins on.............................................................

4. Complete the following picture of the Earth.


NATURAL SCIENCES UNIT 2. Earth’s physical characteristics

Worksheet 2.5

1. Place Earth, Sun and Moon in the right position in a solar eclipse and lunar eclipse:

Earth

Moon

Earth

Solar eclipse

Moon

Lunar eclipse

Sun

Sun

2. Complete the following sentences with the word in the box: 365 days 6 hours y 9 minutes, rotation, 24 hours, translation, day, sidereal year

 Earth makes two movements .............................................. and .......................................  The movement of the Earth on itself is called ................................... 

The movement of the Earth around the Sun is called ...................................

 The Earth takes ............................................... to make one complete turn on itself. This period is called ............................................ 

The Earth takes ............................................................ to orbit arround the sun. This period is called ............................................

3. Using the diagram below complete the following sentences:

a) When the Northen Hemisphere is summer in the South is ......................................... b) In the Northern Hemisphere the summer begins on ...................................................... c) Winter begins in the Northen Hemisphere on ............................................... and in the Southern Hemisphere begins on ......................................................... d) When in the Northern Hemisphere is spring in the Southern Hemisphere is .......................


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worksheet unit 2