Question 1 :
Fill in the blanks. The outermost layer of plant cells is the (a) _______ beneath which is the (b)______ . The term (c)_______ refers to the jelly-like substance containing all the (d)______ . The (e)_______ contains thread-like structures called (f)________ .
Question 3 :
State TRUE or FALSE: Gene controls the transfer of a hereditary characteristic from parents to offspring.
Question 4 :
Various materials which are obtained from nature are called natural resources. Which of the following is not a natural resource?
Question 9 :
The substance expected to have the highest ignition temperature out of the following is
Question 10 :
State TRUE or FALSE: Water vapours surround the combustible material, helping in cutting off the supply of air. So, the fire is extinguished.
Question 13 :
The sources of heat energy for domestic and industrial purposes are called _____
Question 16 :
Why do migratory birds fly to far away areas every year during a particular time?
Question 17 :
State true or false. Plants of a particular area are collectively termed as fauna.
Question 18 :
A place reserved for wild life where they can freely use the habitats and natural resources is known as?
Question 19 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d067f59b460d7261f2e4.PNG' />
In the above image, two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
Question 20 :
During dry weather, clothes made of synthetic fibre often stick to the skin. Which type of force is responsible for this phenomenon?
Question 21 :
State true or false: Force of gravity act on dust particles
Question 22 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06cf59b460d7261f2ea.PNG' />
In the above image, a car is shown sticking to an electromagnet. Name the forces acting on the car?
Question 23 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06af59b460d7261f2e7.PNG' />
In the above, image, A water tank has four taps fixed at points A, B, C, D is shown. The water will flow out at the same pressure from taps
Question 24 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d068f59b460d7261f2e5.PNG' />
In the above image, when the circuit is completed, the hammer strikes the gong. Which of the following force is responsible for the movement of hammer?
Question 25 :
Cartilage is present in the joints of our body, which helps in their smooth movement. With advancing age, this cartilage wears off. How would this affect the movement of joints?
Question 26 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d070f59b460d7261f2ef.PNG' />
In the above image, a boy is shown pushing the box from right to left.The force of friction will act on the box
Question 27 :
If you roll a pencil from an inclined plane, then cover the surface by cloth and roll the pencil again. In which case does it travel the farthest distance?
Question 28 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d072f59b460d7261f2f1.PNG' />
In the above image, Two blocks of iron of different masses are kept on a cemented floor.Which one of them would require a larger force to move it from the rest position?
Question 29 :
A toy car released with the same initial speed will travel farthest on
Question 30 :
If the angle of incidence ray is given $30^{\circ}$, then what is the angle of reflection?
Question 32 :
When all the parallel rays reflected from a rough or irregular surface are not parallel, the reflection is known as ______________?
Question 33 :
How many images of a candle will be formed if it is placed between two parallel plane mirrors separated by 40 cm?
Question 34 :
After striking the mirror, the ray of light is reflected in another direction The ray that comes back from the surface after reflection is known as the ___________ ?
Question 35 :
When angle of incidence is equal to the angle of reflection
Question 37 :
Behind the cornea, we find a dark muscular structure called _____ ?
Question 39 :
Mention whether regular or diffused reflection will take place when a beam of light strikes on Mirror?
Question 44 :
What happens when Iron nails are placed in copper sulphate solution?
Question 45 :
In the soil, which nutrient is enriched by blue-green algae or cyanobacteria?
Question 46 :
Unscramble the jumbled words underlined in the following statement.Yeasts are used in the wine industry because of their property of $\underline {meronettinaf}$ .
Question 47 :
Suggest a suitable word for the following statement. Chemicals added to food to prevent growth of microorganisms.
Question 48 :
In the soil, which nutrient is enriched by blue-green algae or cyanobacteria?
Question 49 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d08ef59b460d7261f318.JPG' />
From the above image find out what changes will you observe in B when the released gas passes through it
Question 50 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d087f59b460d7261f30e.JPG' />
Observe the image and write the name of the disease
Question 51 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0f1f59b460d7261f393.png' />
From the above image, fill in the crossword puzzle using the following hint: Teenage
Question 52 :
Release of sex hormones is under the control of a hormone secreted from the __________.
Question 53 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0eef59b460d7261f38f.png' />
From the above image, fill in the crossword puzzle using the following hint: Hormone reaches here through blood stream
Question 55 :
Out of the following, which is the correct match for Secretion of endocrine glands
Question 56 :
Which of the following statements about reproduction in humans is correct?
Question 58 :
Human egg has a head, middle piece and tail. TRUE or FALSE?
Question 59 :
Fill in the blanks. Amoeba is a __(a)___ celled organism. It reproduces by _____(b)_____ reproduction. The process of reproduction begins by the division of its ______(c)____ into two. This is followed by the division of its _____(d)______ into two. This type of reproduction is called _____(e)_____ fission.
Question 61 :
An earthquake measures 3 on the richer scale. Would it be recorded by a seismograph?
Question 62 :
Plastic straws A and B are rubbed with dry cotton cloth. What will happen if they are brought near each other?
Question 64 :
Give the precautions that you will take to protect yourself if earthquake strikes when you are inside the house.
Question 65 :
When a glass rod is rubbed with a piece of silk cloth the rod ________________.
Question 67 :
Time taken by an object to complete one oscillation is called __________.
Question 68 :
The shape of the outer part of the ear is like a _____.
Question 71 :
______ is well-known constellation that can be seen during winter in the late evenings.
Question 73 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d04df59b460d7261f2c3.PNG' />
The cell shown in the above image represents
Question 74 :
Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of
Question 76 :
The material which is commonly used for making kitchen containers is
Question 77 :
Indicate whether the following statements are True or False. The fabric terywool is obtained by mixing terylene and wool.
Question 82 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0c4f59b460d7261f356.PNG' />
In the above figure, name the liquid(s), which when tested in the manner, may cause the magnetic needle to deflect.
Question 83 :
Is it safe for the electrician to carry out electrical repairs outdoors during heavy downpour?
Question 85 :
The slow process of conversion of dead vegetation into coal is called carbonisation. True or false ?
Question 87 :
Do Migratory birds fly for laying eggs as the weather in their natural habitat becomes very cold and inhospitable?
Question 88 :
The increase in temperature on the earth disturbs the water cycle and may reduce rainfall. This could cause __________?
Question 89 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0caf59b460d7261f35e.JPG' />
From the above image, Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
Question 91 :
Weeds are also controlled by using certain chemicals, called weedicides. (True or False)
Question 92 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d082f59b460d7261f307.PNG' />
From the image above, find out the names of three metals
Question 93 :
Which of the following metals can displace the other two metals from their salt solutions?
Question 94 :
On burning, metals react with oxygen to produce metal oxides which are basic in nature. Non-metals react with oxygen to produce non- metallic oxides which are acidic in nature.
Question 95 :
Metals react with acids and produce metal salts and hydrogen gas. Generally, non-metals do not react with acids.
Question 96 :
The medicines that kill or stop the growth of the disease-causing microorganisms are called -
Question 97 :
Rust of wheat is a plant disease caused by fungi. Its mode of transmission is _____.
