Students of class 7 studying under UP Board often need help with their subjects. Understanding concepts in a simple way helps them to learn better. Here, you will find solutions for all subjects with questions and answers. This will help students prepare well for their exams. All answers are written in very simple language so that every student can understand easily.
Mathematics
Question: What is the sum of the angles of a triangle?
Answer: The sum of the angles of a triangle is always 180 degrees.
Question: What is the square of 12?
Answer: The square of 12 is 144.
Question: Solve: 35 + 45 - 20
Answer: 35 + 45 - 20 = 60
Question: What is the LCM of 12 and 18?
Answer: The LCM of 12 and 18 is 36.
Question: Convert 0.75 into a fraction.
Answer: 0.75 can be written as 3/4 in fraction.
Question: What is the value of 8³?
Answer: The value of 8³ is 512.
Question: How many sides does a pentagon have?
Answer: A pentagon has 5 sides.
Question: Find the area of a square with side 6 cm.
Answer: Area of the square = 6 × 6 = 36 cm²
Question: What is the smallest prime number?
Answer: The smallest prime number is 2.
Question: Solve: 5 × (4 + 6)
Answer: 5 × (4 + 6) = 5 × 10 = 50
Question: Find the HCF of 15 and 25.
Answer: The HCF of 15 and 25 is 5.
Question: What is the formula for the perimeter of a rectangle?
Answer: The formula for the perimeter of a rectangle is 2(l + b).
Question: How many degrees are there in a right angle?
Answer: A right angle has 90 degrees.
Question: What is the place value of 5 in 5,678?
Answer: The place value of 5 in 5,678 is 5,000.
Question: Solve: 81 ÷ 9
Answer: 81 ÷ 9 = 9
Question: What is the reciprocal of 4/7?
Answer: The reciprocal of 4/7 is 7/4.
Question: How many millimeters are there in 1 centimeter?
Answer: There are 10 millimeters in 1 centimeter.
Question: Find the perimeter of a triangle with sides 3 cm, 4 cm, and 5 cm.
Answer: Perimeter = 3 + 4 + 5 = 12 cm
Question: Convert 3/5 to percentage.
Answer: 3/5 × 100 = 60%
Question: What is the formula for the volume of a cube?
Answer: The volume of a cube is a³, where a is the side length.
Science
Question: What is the boiling point of water?
Answer: The boiling point of water is 100°C.
Question: What is the chemical formula of water?
Answer: The chemical formula of water is H₂O.
Question: What is photosynthesis?
Answer: Photosynthesis is the process by which green plants make food using sunlight, water, and carbon dioxide.
Question: What is the main function of the heart?
Answer: The heart pumps blood throughout the body.
Question: What is the unit of force?
Answer: The unit of force is Newton (N).
Question: What are omnivores?
Answer: Omnivores are animals that eat both plants and meat.
Question: What is the largest organ in the human body?
Answer: The largest organ in the human body is the skin.
Question: What is the SI unit of temperature?
Answer: The SI unit of temperature is Kelvin (K).
Question: What is the function of roots in a plant?
Answer: Roots help in absorbing water and nutrients from the soil.
Question: What are renewable resources?
Answer: Renewable resources are natural resources that can be replenished naturally, such as sunlight and wind.
Question: What is gravity?
Answer: Gravity is the force that pulls objects toward the center of the Earth.
Question: What is the function of the lungs?
Answer: Lungs help in breathing by taking in oxygen and removing carbon dioxide.
Question: What is an example of a transparent object?
Answer: Glass is an example of a transparent object.
Question: What is the process of changing water into vapor called?
Answer: The process of changing water into vapor is called evaporation.
Question: What is the hardest natural substance?
Answer: The hardest natural substance is diamond.
Question: What do we call the study of stars and planets?
Answer: The study of stars and planets is called astronomy.
Question: What is a habitat?
Answer: A habitat is the natural home of a living organism.
Question: What is friction?
Answer: Friction is a force that opposes motion between two surfaces in contact.
Question: What is an example of a simple machine?
Answer: A lever is an example of a simple machine.
Question: What are insects that suck blood called?
Answer: Insects that suck blood are called parasites.
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