Voyage Solutions for ICSE Class 6 Geography Chapter 1 Maps And Diagrams

POINTS TO REMEMBER

1. The various ways of representing the earth are globes, maps, pictures, sketches, plans and diagrams.
2. A globe is the most accurate three-dimensional, spherical representation of the earth. However, not many details of the earth can be shown on a globe.
3. Selected features are shown on a map using different signs, symbols and colours.
4. A sketch is a rough drawing showing the relative locations of a few chosen features in an area. They are not drawn to scale.
5. Plans are drawn to scale and are very similar to maps. While a map shows a large area, a plan is normally drawn for a small area or a building.
6. A scale is the ratio of the distance between two places on a map to the actual distance between the same two places on the ground.
7. Map scales are given in three different ways: verbal or statement scale, graphical or linear scale and representative fraction.
8. Colourful signs and symbols used in a map to show natural and man-made features are called conventional signs and symbols.

IMPORTANT TERMS

1. Atlas : A collection of different types of maps in the form of a book.
2. Cardinal directions : the four principal directions - north, south, east and west.
3. Conventional signs and symbols : Internationally recognized signs and symbols used to show natural and man-made features on maps.
4. Fold : A bending of the earth’s crust due to large scale earth movements.
5. Globe : An object representing the spherical shape of the earth with a map of the world on its surface, usually on a stand so that it can be rotated.
6. Map : A drawing of the whole earth or a part of it on a flat surface.
7. Plan : A drawing that shows the horizontal section of a small area or building accurately.
8. Scale : The ratio of the distance between two places on a map to the actual distance between the same two places on the ground.
9. Sketch : A rough drawing showing the relative locations of a few chosen features in an area Trough : The dip of a fold.

THINK AND ANSWER

Question : Do you think it will be easy to understand a map which does not use conventional signs and symbols ? Give reasons for your answer.
Answer:
No, It will be very difficult to understand a map which doesnot use conventional signs and symbols. Maps make use of different signs, symbols and colours to provide distinct information. And it ensures that the information is presented in a clear and concise manner with minimal scope of misinterpretation. These symbols act as a universal language that allows anyone in the world to read and understand the same map. Without them, maps would become cluttered with text and very difficult to navigate quickly.
Teacher's Tip: Think of conventional symbols like traffic lights; red always means stop no matter what country you are in!
Exam Tip: When explaining symbols, always mention that they help in making maps "internationally readable."

VALUES AND LIFE SKILLS


Question : Maps and sketches are great tools. They help us to navigate our way to our destination. Prepare a sketch of the route you take from your house to your school for the new school bus driver. Do not forget to mark the important places in the route.
Answer:
[A sample sketch is provided showing a route from "HOUSES" passing through an "Orchard", "Well", "Shops", "Community Centre", and "Tree" to reach the "School"]. Creating a sketch helps you visualize the spatial relationship between different landmarks without needing complex mathematical tools. It is a practical way to communicate directions effectively to someone who is unfamiliar with the area.
Teacher's Tip: When drawing a sketch, always include a North line so the driver knows which way they are facing.
Exam Tip: Remember that a sketch is never drawn to scale, so focus on the "relative locations" of landmarks rather than exact distances.

Exercises

A. Choose the correct answer

Question 1: Which of these is shown by a thematic map ?
1. mountains
2. rivers
3. climate
4. state capitals

Answer:
3. climate
Thematic maps focus on specific information such as rainfall, temperature, or vegetation. Unlike physical maps, they emphasize a particular subject or theme over general geographical features.
Teacher's Tip: Just remember "Theme" = "Thematic"! If a map has a specific topic like 'Crops', it is a thematic map.
Exam Tip: Always check if the question asks for a specific distribution; if it does, the answer is usually thematic.

Question 2: These maps are useful to surveyors and civil engineers engaged in building roads, bridges, canals, and other structures.
1. physical
2. political
3. topographic
4. thematic

Answer:
3. topographic
Topographic maps provide very detailed information about the elevation and local features of a small area. This detail is essential for engineers to plan construction projects that must account for the shape of the land.
Teacher's Tip: Topographic maps are like high-definition maps for small areas; they show everything from hills to small streams.
Exam Tip: Keywords like "engineers," "surveyors," and "construction" are direct clues for topographic maps.

Question 3: This is a true model of the earth.
1. sketch
2. map
3. globe
4. plan

Answer:
3. globe
A globe is a spherical representation that matches the actual three-dimensional shape of the Earth. It shows the correct relative sizes and positions of continents and oceans without the distortion found on flat maps.
Teacher's Tip: A globe is the only representation that doesn't "stretch" or "squash" the continents to make them fit on a flat sheet.
Exam Tip: If the question asks for a "three-dimensional" model, the answer is always a globe.

Question 4: This is a rough drawing showing the relative locations of a few chosen features of an area.
1. globe
2. map
3. sketch
4. plan

Answer:
3. sketch
A sketch is a quick drawing made from observation rather than precise measurement. Its main purpose is to help someone find a location by recognizing key landmarks along the way.
Teacher's Tip: Think of a sketch as a "memory map" you draw for a friend on a piece of scrap paper.
Exam Tip: Look for the words "rough drawing" and "not to scale" to identify a sketch.

Question 5: This is a drawing that shows the horizontal section of a small area drawn to scale.
1. sketch
2. plan
3. map
4. globe

Answer:
2. plan
A plan is a highly detailed drawing of a very small area, like a room or a house, showing exact measurements. It is drawn to a large scale to capture every detail that would be too small to see on a standard map.
Teacher's Tip: Architects use plans to show where doors and windows go in a building.
Exam Tip: If the question mentions a "small area" and "drawn to scale," it is a plan, not a map.

Question 6: These are taken from space and show that the earth is spherical in shape.
1. graphs
2. plans
3. aerial photographs
4. sketches

Answer:
3. aerial photographs
These photographs are taken from high altitudes using cameras on satellites or aircraft. They provide a realistic view of the Earth's surface and confirm the curvature of the planet.
Teacher's Tip: Satellite images on your phone's GPS are a modern type of aerial photograph!
Exam Tip: Aerial photography is the primary tool used today to create modern, accurate maps.

B. Explain the differences between each of the following pairs.

Question 1: An aerial photograph and a plan
Answer:
An aerial photograph and a plan - A plan is a drawing that shows the horizontal section of a small area or a building. It is drawn to scale. It is useful because it tells us where exactly things are on the ground. Aerial photographs is a tool for representing the earth or a part of it is aerial photography. Photographs of the earth are taken from a camera mounted on an aircraft, an unmanned drone or an artificial satellite. In fact, such photographs have been used widely in the preparation of accurate maps. While a plan is a man-made diagram of a structure, an aerial photograph is a direct image captured by a lens. Plans are often used for future construction, whereas aerial photos show the current reality of the landscape.
Teacher's Tip: Remember: Plans use lines and measurements, while aerial photographs use real light and colors captured from the sky.
Exam Tip: Use a comparison table to highlight that a plan is "drawn" and a photograph is "captured."

Question 2: A globe and an atlas
Answer:
A globe and an atlas - Map : a drawing of the whole earth or a part of it on a flat surface. A globe is a spherical model while an atlas is a collection of maps in a book. The globe represents the Earth's true shape in 3D, but it is hard to carry. An atlas is convenient and portable, providing many different types of specialized maps in one volume.
Teacher's Tip: Think of a globe as a toy Earth and an atlas as a library of paper maps.
Exam Tip: Mention "portability" as a key difference between these two tools.

Question 3: A sketch and a map
Answer:
A sketch and a map - A rough drawing showing the relative locations of a few chosen features in an area. A map - A drawing of the who le earth or a part of it on a flat surface. The biggest difference is that a map is always drawn to a specific scale for accuracy. A sketch is just for quick reference and does not use precise measurements or scale.
Teacher's Tip: A map is a professional document; a sketch is an informal guide.
Exam Tip: The word "Scale" is the most important differentiator between a map and a sketch.

C. Answer the following questions in brief.

Question 1: Define an atlas.
Answer:
A collection of different types of maps bound together in the form of a book is called an atlas. It typically contains political, physical, and thematic maps of various countries and continents. It is a valuable reference tool for students and travelers to look up geographic information quickly.
Teacher's Tip: An atlas is like a dictionary, but instead of words, it is filled with pictures of the world!
Exam Tip: Define it specifically as "maps bound together in a book" to get full marks.

Question 2: What do you understand by topographic maps ?
Answer:
Topographic maps which give detailed information about local features of small areas on the surface of the earth. They use contour lines to show the shape and elevation of the land, including hills, valleys, and slopes. These maps also include man-made features like roads, buildings, and railways in great detail.
Teacher's Tip: If you are going mountain climbing, a topographic map is your best friend because it shows how steep the climb will be.
Exam Tip: Mention "local features" and "small areas" when defining topographic maps.

Question 3: Which map would be most useful to army personnel when constructing a bridge during a war ?
Answer:
In addition to these maps, there are topographic maps (topos = place; graphy = to describe) as these give detailed information about local and forms, streams, rivers, canals and other features of areas. These maps are based on an accurate survey of land. They are vital for the army because they show the exact terrain and water bodies that need to be crossed. This allows for precise engineering calculations and strategic planning during military operations.
Teacher's Tip: Topo-maps are used by the military because they show the "lay of the land" perfectly.
Exam Tip: Mention that topographic maps are based on "accurate surveys" to explain why they are so reliable.

Question 4: How will you show the location of your house to a friend who is visiting you for the first time ?
Answer:
We can show the location of our house to a friend who is visiting us for the first time with the help of a sketch. A sketch is easy to draw quickly and can highlight recognizable landmarks like a specific park or shop near your home. It doesn't need to be perfectly measured as long as the turns and main buildings are clear.
Teacher's Tip: Always mark a "Starting Point" and "Destination" clearly on your navigation sketch.
Exam Tip: Explain that a sketch is used because it focuses on "relative locations" of landmarks.

Question 5: Differentiate between a plan and a sketch.
Answer:
Plan :
1. A plan is a drawing that shows the horizontal section of a small area or building.
2. It is drawn to the scale.
3. It tells us exactly things are on the ground.
4. It is accurate representation of an area.
Sketch :
1. A sketch is a rough drawing showing the relative locations of a few chosen features of an area.
2. It is not drawn to the scale.
3. It does not show the true shape or size of the features.
4. It is rough representation of an area.
In simple terms, a plan is like a blueprint used by builders for precision. A sketch is just a helper for finding locations and is not meant for building or measuring.
Teacher's Tip: Think: Plan = Precise/Professional, Sketch = Simple/Short-term.
Exam Tip: Point-wise differences like the ones above are the best way to answer "Differentiate" questions.

D. Answer the following questions in one or two paragraphs

Question 1: What is a map ? What are the different types of maps ?
Answer:
A map is a drawing of the whole earth or a part of it on a flat surface. Maps can be divided into following categories based on the scale used to draw them are :
 Small scale maps - They show a large land area in a small space Eg. 1 cm on small scale map could represent 200 kms on ground. The features of the area are not clearly visible.
 Large – scale maps - They show smaller area of land in bigger space Eg. 1 cm = 1 km on land. They give detailed information of the area. Maps are essential because they provide a flattened, portable view of the globe. Different types of maps serve different purposes, from showing country borders to showing mountain heights.
Teacher's Tip: Don't get confused! Small scale = Huge area (like a world map). Large scale = Small area (like a city map).
Exam Tip: Always provide an example like "1 cm = 200 km" when explaining map scales.

Question 2: Describe a political and a physical map.
Answer:
Political maps: show the boundaries of countries, states, etc. and also the location of capital cities and important towns. Physical maps: show mountains, valleys, plains, rivers, and other surface features. These maps generally use different colours to represent land of different heights. Political maps are mostly used for understanding human-made divisions and administration. Physical maps are used for understanding the natural landscape and geography of a region.
Teacher's Tip: Political maps have borders; Physical maps have mountains and rivers.
Exam Tip: Mention that physical maps use color coding (like brown for mountains and blue for water) to show elevation.

Question 3: Take the help of your atlas to make a list of thematic maps. Describe any two maps from your list.
Answer:
Thematic maps shows the distribution of forests, crops, minerals and industries. The types of Thematic maps are :
1. Ranged maps.
2. Point density maps
3. Proportional symbol maps
4. Maps with pie or bar charts.
5. Grided maps.
The other two maps are :
1. Political maps shows the boundaries of administrative units such as countries, states and districts. Different types of boundaries are shown with different symbols. They also show the locations of cities, towns and villages.
2. Physical maps show the landforms and water bodies on the Earth’s surface, such as mountains, plateaus, plains, rivers, lakes and seas. The different features are shown with different colours. Thematic maps are specialized tools that help researchers study specific patterns over a geographic area. For example, a rainfall map helps farmers plan their crop cycles for the year.
Teacher's Tip: Thematic maps are often "data-driven" maps.
Exam Tip: When describing thematic maps, always give a specific example like "Industry map" or "Population map."

Question 4: What are the advantages and disadvantages of using a globe ?
Answer:
Advantages :

1. It is the most accurate three dimensional representation of the earth.
2. It shows the distribution of continents and oceans accurately.
3. Lines of latitude and longitude are marked on a globe.

Disadvantages :

1. Only a part of the earth can be seen on a globe, at one glance.
2. All details cannot be marked on a globe.
3. A globe is difficult to carry around. Because a globe is round like the Earth, it doesn't have the distortion problems that flat maps do. However, for everyday navigation or studying small towns, a map is far more practical.

Teacher's Tip: A globe is great for learning about the whole world at once, but maps are better for your pocket!
Exam Tip: Ensure you provide at least three points for both advantages and disadvantages in long-form answers.

E. Draw a plan of your house showing clearly the position of each room in relation to the others. On the plan, mark clearly the positions of doors, windows and furniture.

Answer:
[A sample architectural plan is shown showing BEDROOMs, BATHs, MASTER'S BR., STO. (storage), and an OPEN TO BELOW section with a BALCONY]. Drawing a house plan requires looking at your home from a "bird's-eye view" to understand how rooms connect. It is a scale drawing where every centimeter on paper represents a certain distance in your real house.
Teacher's Tip: Use a ruler to make sure your walls are straight and your scale is consistent.
Exam Tip: In a plan, always label each room (e.g., Kitchen, Bedroom) clearly so the drawing is easy to read.

F. Picture study.

Question 1: Do you know how this type of picture is taken ?
Answer:
An aerial photograph of Australia. These images are captured using high-powered cameras attached to satellites orbiting the Earth. They can also be taken by specialized aircraft flying at high altitudes to map out large continents and oceans.
Teacher's Tip: These satellite "pictures" are how apps like Google Earth show you every street on the planet!
Exam Tip: Identify this as "Aerial Photography" or "Satellite Imagery" to show you understand the technology.

Question 2: What is it used for ?
Answer:
These maps are used widely in the preparation of accurate maps. They help scientists monitor changes in the environment, such as deforestation or urban growth over many years. They are also essential for weather forecasting and military reconnaissance.
Teacher's Tip: Aerial photos provide the "base layer" that mapmakers use to draw their digital maps.
Exam Tip: Focus on "accuracy" and "map preparation" as the primary uses for this type of photography.