Question 1 :
Example for the change which occurs on heating but can be reversed is:
Question 2 :
Complete the following sentence.
Mountaineers carry oxygen cylinders with them because ______
Question 3 :
The layer of air around the earth is known as _____.
Question 4 :
Plants produce oxygen during the process of making their own food. State True or False.
Question 6 :
Is the ball and socket joint a movable or an immovable joint?
Question 7 :
The types of movements seen in Duck is/are: (i) Flying (ii) Walking (iii) Swimming (iv) Running (v) Creeping (vi) Slithering
Question 11 :
The ________________ that we drink, which comes from cows, buffaloes and goats, is an animal product.
Question 13 :
Given below are names of some animals.
(i) Goat
(ii) Human beings
(iii) Cockroach
(iv) Eagle
Which of the above pair of animals are omnivores?
Question 15 :
It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it.
Question 17 :
Fill in the blanks.
The method of preparing compost with the help of earthworms is called _____.
Question 18 :
Fill in the blanks: The female part of the flower is called the ______(f)______.
Question 19 :
If the sepals of a flower are joined together, its petals are also joined together.Is it correct ?
Question 20 :
You are given a transparent glass sheet. Suggest any two ways to make it translucent without breaking it.
Question 21 : <img style='object-fit:contain' src='61b1c697f59b460d7261e624' />
<img style='object-fit:contain' src='61cc1a9278c526e972caefc1' />
A torch is placed at two different positions A and B, one by one, as shown in the above figure . The shape of the shadow obtained in two positions is also shown. Match the position of the torch and shape of the shadow of the ball .
Question 22 :
Fill in the blanks:
SI unit of length is _____ .
Question 23 :
Fill in the blanks with appropriate words: Filtration is helpful in separating an insoluble __________ from a liquid.
Question 24 :
State whether copper sulphate crystals is soluble or insoluble in water.
Question 25 :
Although organisms die, their kind continue to live on earth. Which characteristic of living organisms makes this possible?
Question 26 :
The presence of dust particles in air varies from time to time, and from place to place.
Question 28 :
Read the clue and fill up the blanks.
Honey Bees suck from flower.
Question 30 :
'Lauki (gourd) plant is a climber'.
Is the above statement True/False?
Question 32 :
State True or False: In many cities, long queues for collection of water are a common site.
Question 34 :
Fill in the blank: Evaporation of water is a ____ process.
Question 36 :
Fill in the blank: Objects like the sun that give out or emit light of their own are called ______ objects.
Question 37 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c6eef59b460d7261e659.png' />
In the above figure, an organism is shown. Name the organism.
Question 38 :
Fill in the blank: The habitats of plants and animals that live in land are called __________ habitats.
Question 39 :
Fill in the blank: Living creatures are also known as _____.
Question 40 :
State true or false:
Vitamins are the nutrients that protect us against diseases.
Question 41 :
State true or false:
The presence of sugar in the diet can be tested with iodine solution.
Question 43 :
Why can a pace or a footstep not be used as a standard unit of length?
Question 46 :
Which of the following is the edible part of pomegranate plant?
Question 47 :
Fill in the blanks:
Tiger is a ................. because it eats only meat.
Question 48 :
Given below are the names of some objects and materials :
Water, basketball, orange, sugar, globe, apple and earthen pitcher
Group them as eatables.
Question 49 :
State True or False: Soil was once part of living thing.
Question 50 :
State True or False: Butter was once part of living thing.
