Here are treasure trove workbook answers

The Treasure Trove workbook is a valuable resource for students, offering a comprehensive collection of questions and answers across various subjects. The subjects covered include English, Mathematics, Science, Social Studies, and more.

English

Literature Questions

Question: What is the central theme of “The Heart of the Tree” by Henry Cuyler Bunner?

Answer: The central theme of “The Heart of the Tree” is the significance of planting trees and their benefits to nature and humanity. The poem highlights how trees contribute to a healthier environment, provide shade, support wildlife, and symbolize hope and growth for future generations.

Question: Describe the character of Mr. Bramble in “The Man Who Knew Too Much” by Alexander Baron.

Answer: Mr. Bramble is a modest, humble, and responsible person. He is a professional boxer but prefers to keep this a secret from his son, fearing it might negatively influence him. His character shows the struggle between his profession and his desire to be a good role model.

Question: What is the message of the story “The Little Match Girl” by Hans Christian Andersen?

Answer: The message of “The Little Match Girl” is a critique of societal neglect and the plight of the poor. It highlights the innocence and suffering of the girl and calls for compassion and empathy towards those in need.

Grammar and Composition

Question: Correct the following sentence: “She don’t like to play soccer.”

Answer: She doesn’t like to play soccer.

Question: Write a short story beginning with “It was a dark and stormy night…”

Answer: It was a dark and stormy night, and the wind howled through the trees as if in pain. Sarah clutched her flashlight, its beam cutting through the rain. She was searching for her lost dog, Max, who had run off during the thunderstorm. After hours of calling his name, she finally heard a faint bark. There, huddled under an old oak tree, was Max, shivering but safe. Sarah hugged him tightly, relieved to have found her loyal companion.

Question: Change the following sentence to passive voice: “The teacher praised the student.”

Answer: The student was praised by the teacher.

Question: Combine the following sentences using a conjunction: “He is smart. He is lazy.”

Answer: He is smart but lazy.

Mathematics

Algebra

Question: Solve for x: 2x + 5 = 15

Answer: Subtract 5 from both sides: 2x = 10. Then divide both sides by 2: x = 5.

Question: Factorize: x^2 – 9

Answer: The expression x^2 – 9 can be factorized as (x + 3)(x – 3).

Question: Simplify: 3(x + 4) – 2x

Answer: Distribute and combine like terms: 3x + 12 – 2x = x + 12.

Question: Solve the inequality: 5x – 7 < 18

Answer: Add 7 to both sides: 5x < 25. Then divide both sides by 5: x < 5.

Geometry

Question: What is the area of a triangle with a base of 10 cm and a height of 5 cm?

Answer: The area of the triangle is (1/2) * base * height = (1/2) * 10 cm * 5 cm = 25 cm².

Question: Calculate the circumference of a circle with a radius of 7 cm.

Answer: The circumference of a circle is given by 2πr. Therefore, the circumference is 2 * π * 7 cm = 44 cm (approximately, using π ≈ 3.14).

Question: Find the area of a rectangle with a length of 12 cm and a width of 5 cm.

Answer: The area of the rectangle is length * width = 12 cm * 5 cm = 60 cm².

Question: What is the volume of a cube with side length 4 cm?

Answer: The volume of the cube is side^3 = 4 cm * 4 cm * 4 cm = 64 cm³.

Science

Biology

Question: What is photosynthesis?

Answer: Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll. They convert carbon dioxide and water into glucose and oxygen. The equation for photosynthesis is 6CO₂ + 6H₂O + light energy -> C₆H₁₂O₆ + 6O₂.

Question: Define osmosis.

Answer: Osmosis is the movement of water molecules through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration until equilibrium is reached.

Question: What are the main functions of the human digestive system?

Answer: The main functions of the human digestive system are to break down food into nutrients, absorb these nutrients into the bloodstream, and eliminate waste products.

Question: Explain the structure and function of the human heart.

Answer: The human heart is a muscular organ with four chambers: two atria and two ventricles. It pumps blood throughout the body, supplying oxygen and nutrients to tissues and removing waste products. The heart’s rhythmic contractions maintain blood circulation.

Physics

Question: State Newton’s First Law of Motion.

Answer: Newton’s First Law of Motion states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. This is also known as the law of inertia.

Question: What is the formula for calculating the speed of an object?

Answer: The formula for calculating speed is speed = distance/time.

Question: Define potential energy and give an example.

Answer: Potential energy is the energy stored in an object due to its position or configuration. An example is a book placed on a shelf, which has gravitational potential energy.

Question: What is the unit of electric current?

Answer: The unit of electric current is the ampere (A).

Chemistry

Question: What is the chemical formula for water?

Answer: The chemical formula for water is H₂O.

Question: Define acid and base with examples.

Answer: An acid is a substance that donates hydrogen ions (H⁺) in a solution, such as hydrochloric acid (HCl). A base is a substance that accepts hydrogen ions and often provides hydroxide ions (OH⁻), such as sodium hydroxide (NaOH).

Question: What is the periodic table?

Answer: The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configurations, and recurring chemical properties. Elements with similar properties are grouped in columns.

Question: Explain the process of electrolysis.

Answer: Electrolysis is a chemical process that uses electric current to drive a non-spontaneous chemical reaction. It involves the decomposition of a substance, typically an ionic compound, into its constituent elements by passing an electric current through it.

Social Studies

History

Question: Who was the first President of the United States?

Answer: The first President of the United States was George Washington.

Question: What was the significance of the Industrial Revolution?

Answer: The Industrial Revolution marked a period of major industrialization and innovation that began in the late 18th century. It significantly changed societies, economies, and the way goods were produced, leading to urbanization and advancements in technology and transportation.

Question: What were the main causes of World War I?

Answer: The main causes of World War I were militarism, alliances, imperialism, and nationalism. The assassination of Archduke Franz Ferdinand of Austria-Hungary was the immediate trigger.

Question: Who was Mahatma Gandhi and what was his role in India’s independence movement?

Answer: Mahatma Gandhi was a leader of the Indian independence movement against British rule. He advocated for nonviolent resistance and civil disobedience, leading campaigns that eventually resulted in India’s independence in 1947.

Geography

Question: Name the longest river in the world.

Answer: The longest river in the world is the Nile River.

Question: What are the primary factors that influence climate?

Answer: The primary factors that influence climate include latitude, altitude, ocean currents, topography, vegetation, and prevailing winds.

Question: What is the significance of the equator?

Answer: The equator is an imaginary line around the middle of the Earth, equidistant from the North and South Poles. It divides the Earth into the Northern and Southern Hemispheres and is significant because it experiences nearly equal day and night throughout the year.

Question: What are tectonic plates?

Answer: Tectonic plates are large, rigid pieces of the Earth’s lithosphere that move and interact on the Earth’s surface. Their movements cause geological events such as earthquakes, volcanic eruptions, and the formation of mountains.

Civics

Question: What is democracy?

Answer: Democracy is a form of government in which power is vested in the hands of the people, either directly or through elected representatives. It is characterized by fair elections, equal participation, and protection of human rights.

Question: What are the fundamental rights guaranteed by the Constitution of India?

Answer: The Constitution of India guarantees several fundamental rights, including the right to equality, the right to freedom, the right against exploitation, the right to freedom of religion, cultural and educational rights, and the right to constitutional remedies.

Question: What is the role of the judiciary in a democratic system?

Answer: The judiciary in a democratic system interprets and applies the law, ensures justice, protects citizens’ rights, and checks the powers of other branches of government. It acts as a guardian of the constitution.

Question: Define the term “secularism.”

Answer: Secularism is the principle of separating religion from government and ensuring that all religions are treated equally by the state. It promotes religious freedom and prevents discrimination based on religion.

Economics

Question: Define demand and supply.

Answer: Demand is the quantity of a good or service that consumers are willing and able to purchase at various prices during a given period. Supply is the quantity of a good or service that producers are willing and able to offer for sale at various prices during a given period.

Question: What is GDP?

Answer: GDP stands for Gross Domestic Product, which is the total value of all goods and services produced within a country over a specific period, typically one year. It is a measure of a country’s economic performance.

Question: What is inflation?

Answer: Inflation is the rate at which the general level of prices for goods and services rises, eroding purchasing power. It indicates how much more expensive a set of goods and services has become over a certain period, usually a year.

Question: Explain the concept of opportunity cost.

Answer: Opportunity cost is the value of the next best alternative foregone when making a decision. It represents the benefits that could have been gained from choosing the alternative option.

Environmental Science

Question: What are renewable resources? Give examples.

Answer: Renewable resources are natural resources that can be replenished naturally over time. Examples include solar energy, wind energy, water, and biomass.

Question: Why is it important to conserve biodiversity?

Answer: It is important to conserve biodiversity because it ensures the stability and resilience of ecosystems, provides a source of food, medicine, and other resources, and supports ecological processes and services essential for human survival.

Question: What is global warming?

Answer: Global warming is the gradual increase in the Earth’s average surface temperature due to the buildup of greenhouse gases like carbon dioxide in the atmosphere, primarily from human activities such as burning fossil fuels and deforestation.

Question: Define the term “sustainable development.”

Answer: Sustainable development is the practice of meeting the needs of the present without compromising the ability of future generations to meet their own needs. It involves using resources efficiently and responsibly to ensure long-term environmental health and economic prosperity.

Computer Science

Question: What is an algorithm?

Answer: An algorithm is a step-by-step procedure or formula for solving a problem or completing a task. It is a set of instructions designed to perform a specific function.

Question: Define hardware and software.

Answer: Hardware refers to the physical components of a computer system, such as the CPU, monitor, keyboard, and mouse. Software refers to the programs and applications that run on the computer and perform specific tasks, such as operating systems, word processors, and games.

Question: What is the purpose of an operating system?

Answer: The purpose of an operating system is to manage the computer’s hardware and software resources, provide a user interface, and facilitate the execution of applications. It acts as an intermediary between users and the computer hardware.

Question: Explain the concept of a database.

Answer: A database is an organized collection of data that is stored and accessed electronically. It allows for efficient storage, retrieval, and manipulation of data, and is managed by a database management system (DBMS).

Art and Culture

Question: What is the significance of the Mona Lisa painting?

Answer: The Mona Lisa, painted by Leonardo da Vinci, is significant for its exquisite detail, innovative techniques, and the mysterious expression of the subject. It is considered a masterpiece of Renaissance art and one of the most famous paintings in the world.

Question: Name a traditional dance form of India.

Answer: One traditional dance form of India is Bharatanatyam, which originated in Tamil Nadu and is known for its intricate footwork, expressive gestures, and elaborate costumes.

Question: What is the role of art in society?

Answer: Art plays a significant role in society by expressing cultural values, emotions, and ideas. It fosters creativity, inspires change, promotes cultural heritage, and serves as a means of communication and expression.

Question: Define the term “folk art.”

Answer: Folk art refers to the traditional art forms created by people from rural or indigenous communities. It often includes crafts, paintings, music, and dance that are passed down through generations and reflect the cultural identity and practices of a community.

Physical Education

Question: What are the benefits of regular exercise?

Answer: The benefits of regular exercise include improved cardiovascular health, stronger muscles and bones, better mental health, weight management, enhanced flexibility, and reduced risk of chronic diseases.

Question: Explain the rules of soccer.

Answer: Soccer, also known as football, is played between two teams of eleven players each. The objective is to score goals by getting the ball into the opposing team’s net. The game consists of two 45-minute halves, and players cannot use their hands or arms to touch the ball, except for the goalkeeper within the penalty area.

Question: What is the importance of warm-up exercises?

Answer: Warm-up exercises are important because they prepare the body for physical activity by increasing blood flow to the muscles, enhancing flexibility, reducing the risk of injury, and improving overall performance.

Question: Describe the basic rules of basketball.

Answer: Basketball is played between two teams of five players each. The objective is to score points by shooting the ball through the opponent’s hoop. The game consists of four quarters, and players can dribble, pass, and shoot the ball. Fouls and violations are penalized, and the team with the most points at the end of the game wins.

Home Science

Question: What is a balanced diet?

Answer: A balanced diet provides all the essential nutrients in the right proportions to maintain health and well-being. It includes a variety of foods from different food groups: carbohydrates, proteins, fats, vitamins, minerals, and water.

Question: How do you properly store perishable food items?

Answer: Perishable food items should be stored in a refrigerator or freezer to slow down bacterial growth. They should be kept in airtight containers, and raw and cooked foods should be separated to prevent cross-contamination.

Question: What are the basic principles of food hygiene?

Answer: The basic principles of food hygiene include keeping food preparation areas clean, washing hands before handling food, cooking food to the correct temperature, storing food properly, and avoiding cross-contamination between raw and cooked foods.

Question: Explain the importance of budgeting in home management.

Answer: Budgeting in home management is important because it helps families plan and control their finances, ensuring that income is allocated to essential expenses, savings, and discretionary spending. It promotes financial stability, reduces stress, and helps achieve long-term financial goals.

Music

Question: Define rhythm in music.

Answer: Rhythm in music refers to the pattern of sounds and silences, or beats, in a piece of music. It is the timing of notes and rests and is fundamental to creating the structure and feel of the music.

Question: What is a musical scale?

Answer: A musical scale is a series of notes ordered by pitch. The most common scales are major and minor scales, each consisting of seven notes with a specific pattern of whole and half steps.

Question: What is the role of melody in a song?

Answer: Melody is the sequence of notes that make up the main tune of a song. It is the part of the music that is most recognizable and memorable, and it carries the emotional and expressive content of the piece.

Question: Explain the difference between a symphony and a concerto.

Answer: A symphony is a large-scale musical composition for an orchestra, typically consisting of multiple movements. A concerto is a musical composition that features a solo instrument accompanied by an orchestra, often highlighting the virtuosity of the soloist.