Hi

Hi

Comments

Post a Comment

Popular posts from this blog

Class 6th Chapter 1 The Wonderful World of Science

Class 6 Science – Practice Questions Class 6 Science – Practice Questions Multiple Choice Questions (MCQs) 1. What is science primarily a way of doing? a) Memorizing facts b) Thinking, observing, and experimenting c) Reading stories d) Playing games ✅ Answer: b) Thinking, observing, and experimenting 2. Which of the following is listed as a main component of air in the sources? a) Hydrogen (Not in source) b) Helium (Not in source) c) Oxygen d) Methane (Not in source) ✅ Answer: c) Oxygen 3. What is an object called that can produce a magnetic field and attract unlike poles? a) Electric motor (Not in source) b) Compass (Not in source) c) Magnet d) Battery (Not in source) ✅ Answer: c) Magnet Very Short Answe...
Read more

7th Chapter 10 Life Processes in Plants

Class 7 Science – Photosynthesis & Respiration Q-A Class 7 Science – Questions & Answers 1 Complete the following table S.No. Feature Photosynthesis Respiration 1 Raw materials Carbon dioxide and water Glucose and oxygen 2 Products Glucose and oxygen Carbon dioxide and water 3 Word equation CO₂ + H₂O → Glucose + O₂ Glucose + O₂ → CO₂ + H₂O 4 Importance Makes food for plants Releases energy for life processes 2 Imagine a situation where all the organisms that carry out photosynthesis on the earth have disappeared. What would be the impact of this on living organisms? Oxygen levels would plummet while carbon dioxide would skyrocket. With no breathable oxygen and no food production, animals and humans would ult...
Read more

Measurement of Motion and Time

Class 7 Science – Motion, Distance and Speed (Worksheet with Answers) Class 7 – Motion, Distance and Speed (Worksheet with Solutions) Question 1 Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h. • Speed = Distance ÷ Time = 150 ÷ 10 = 15 m/s • In km/h: 15 × 3.6 = 54 km/h Question 2 A runner completes 400 metres in 50 seconds. Another runner completes the same distance in 45 seconds. Who has a greater speed and by how much? • Runner A = 400 ÷ 50 = 8 m/s • Runner B = 400 ÷ 45 ≈ 8.89 m/s • Difference = 8.89 − 8.00 = 0.89 m/s . Runner B is faster. Question 3 A train travels at a speed of 25 m/s and covers a distance of 360 km. How much time does it take? • Convert speed to km/h: 25 × 3.6 = 90 km/h • Time = Distance ÷ Speed = 360 ÷ 90 = 4 hours Question 4 A train travels 180 km in 3 h. Find its speed in: (i) km/h (ii) m/s (iii) What distance will it travel in 4 h if it maintains the same speed througho...
Read more