Section 1: Motion and Measurement of Distances, Light, Shadows and Reflections, Electricity and Circuits, Fun with Magnets, Our Environment, Sorting and Separation of Materials, Changes Around Us, Living Organisms and Their Surroundings, Food and its Components, Fibre to Fabric.
Achievers Section: Higher Order Thinking Questions - Syllabus as per Section 1
Read the statements given below and select the correct option: Statement 1 - When the size of the foreign particle is too small to be picked by hand or when the quantity is too large, sieving is used for separating substances. Statement 2 - Separating bran from flour is done by sieving.
Q.2
Which of the following is a behavioural adaptation?
A cactus storing water in its stem
A bird migrating to warmer climates in winter
A plant developing thorns for protection
A fish having streamlined body shape
Q.3
Which of the following pairs are wrongly classified? M: Nitrogen - Takes up four-fifths of the air space N: Oxygen - End product of photosynthesis O: Carbon dioxide - Production by factories P: Smoke - Produced by plants
Q.4
Robert was discussing fibres and fabrics with his classmate Shane and this is what they said: Robert: Polyester burns slowly and does not shrink. It is always self-extinguishing. It leaves no ash but its black smoke and fume are hazardous. Shane: Silk is a protein fibre which burns slowly and curls away from the flame. It is self-extinguishing. It gives out little or no smoke and the fume has no hazard. Choose the correct option related to the two statements:
Q.5
Given below are a set of phenomena: 1. Folding the paper into an aeroplane. 2. Melting of ice candy. 3. Wet clothes to dry clothes 4. Dissolving sugar in water
What is the basis of the given grouping?
Q.6
Spot the process that can be used to separate each of the following: 1. Cashews from mixture of almonds and cashewnuts 2. Sugar crystals from a mixture of red lentils 3. Small stones from a mixture of pulses. 4. Cut and cubed apples from a bowl of fruit salad.
Q.7
What do the following suggest about all living things? 1. Flowers of some plants bloom only at night. 2. In some plants, flowers close after sunset. 3. In some plants like a mimosa, commonly known as ‘touch-me-not’, leaves close or fold when someone touches them. 4. A boy removes finger instantly after touching hot iron.
Q.8
Given below are two groups of fibres namely I and II: Group I - Cotton, Jute, hemp Group II - Polyester, Nylon, Acrylic On what basis have these fibres been grouped?
Q.9
Plants do not move from one place to another in search of food and shelter. Some plants like Mimosa (Touch-me-not) show leaf movements. A sunflower always faces the sun.
From the above paragraph, what can be concluded?
Q.10
Which of the following will not allow electric current to pass through? 1. Plastic comb 2. Gold earring 3. Silver spoon 4. Wooden box 5. Copper utensil 6. Lime juice
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