Uncategorized

Life Processes in Animals 1. Complete the journey of food through the alimentary canal by filling up the boxes with appropriate parts- Food → Mouth → ______ → Stomach → …

Read more

Measurement of Time and Motion 1. Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h. Solution: Distance = 150 m Time …

Read more

Heat Transfer in Nature 1. Choose the correct option in each case. (i) Your father bought a saucepan made of two diff erent materials, A and B, as shown in …

Read more

Changes Around Us: Physical and Chemical 1. Which of the following statements are the characteristics of a physical change? (i) The state of the substance may or may not change. …

Read more

Adolescence: A Stage of Growth and Change 1. Ramesh, an 11-year-old boy, developed a few pimples on his face. His mother told him that this is because of ongoing biological …

Read more

The World of Metals and Non-metals 1. Which metal is commonly used to make food packaging materials as it is cheaper, and its thin sheets can be folded easily into …

Read more

Electricity: Circuits and their Components 1. Choose the incorrect statement. (i) A switch is the source of electric current in a circuit. (ii) A switch helps to complete or break …

Read more

Exploring Substances: Acidic, Basic, and Neutral 1. A solution turns the red litmus paper to blue. Excess addition of which of the following solution would reverse the change? (i) Lime …

Read more

📖 Question–Answer Set Q1. What is science according to this chapter? Answer:Science is not just a collection of facts. It is a way of thinking that encourages curiosity, asking questions, …

Read more

वृक्षाः सत्पुरुषाः इव वयम् अभ्यासं कुर्मः २. पाठस्य आधारेण अधोलिखितानां प्रश्नानाम् उत्तराणि एकपदेन लिखन्तु । (क) वृक्षा: स्वयं कुत्र तिष्ठन्ति ? (वृक्ष कहाँ खड़े रहते हैं?) उत्तरम्: आतपे (धूप में) …

Read more