Question 1 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d050f59b460d7261f2c7.PNG' />
Current does not flow in the circuit if there is a gap between the two wires. Does air never conduct electricity?
Question 2 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d057f59b460d7261f2d0.PNG' />
In the image above, Boojho set up this circuit for purification of copper. What will be the nature of the solution?
Question 3 :
Which of the following metals is used in electroplating to make objects appear shining?
Question 4 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d053f59b460d7261f2cb.PNG' />
In the above image, observing that the bulb does not glow in the circuit shown in A, Boojho changed the circuit as shown in B. He observed deflection in the magnetic compass. What would be the effect of increase in the number of turns in the coil wound around the magnetic compass in B?
Question 5 :
State True or False. Coal is one of the fuels used to cook food.
Question 7 :
What are the advantages of using CNG and LPG as fuels?
Question 8 :
State True or False .Excessive burning of fossil fuels is a major cause of air pollution .
Question 16 :
Which zone of a flame does a goldsmith use for melting gold and silver?
Question 17 :
In our country, large patches of forests are being cleared for cultivation of crops. The environmental impact of such a practice will lead to ________.
Question 19 :
A place for Large areas of protected land for conservation of wild, plant and animal resources and traditional life of the tribals living in the area is known as ?
Question 21 :
Which of the following tools would a farmer use to remove weeds from the field?
Question 22 :
Read the statements given below
1.Seeds require moisture for germination
2.Plants can absorb nutrients mostly in dissolved form
3.Irrigation protects crops from both frost and hot air current
4.Irrigation improves soil texture.
Choose the combination of statements which indicate the need to irrigate crops.
Question 24 :
Terms related to agricultural practice are given below. Rearrange them in the correct sequence. harvesting, sowing, manuring, tilling and ploughing, irrigation, weeding
Question 25 :
A girl is pushing a box towards east direction. In which direction should her friend push the box so that it moves faster in the same direction?
Question 26 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d06bf59b460d7261f2e8.PNG' />
In the above image, A brick is kept in three different ways on a table as shown in figure.The pressure exerted by the brick on the table will be
Question 27 :
State true or false: Force of gravity act on dust particles
Question 28 :
To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?
Question 31 :
If an air cushion can be introduced between the wheel and the rail, what effect will it have on the friction?
Question 32 :
Mention whether regular or diffused reflection will take place when a beam of light strikes on Mirror?
Question 34 :
At the junction of the optic nerve and the retina, there are no sensory cells, so no vision is possible at that spot. This is called the _________?
Question 35 :
Which one of the following is an example of illuminated object?
Question 36 :
The name of the product formed in the reaction of sulphur and _____________ is sulphur dioxide gas.
Question 38 :
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
Question 39 :
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
Question 41 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d08cf59b460d7261f314.JPG' />
From the above figure complete the following cycle , By filling the blank (c)
Question 43 :
Unscramble the jumbled words underlined in the following statement.Yeasts are used in the wine industry because of their property of $\underline {meronettinaf}$ .
Question 44 :
$CO_{2}$ traps heat and does not allow it to escape into ______
Question 45 :
State True or False.
The sources of air pollutants are factories, power plants, automobile exhausts and burning of firewood and dung cakes.
Question 46 :
Which refineries are a major source of gaseous pollutants like sulphur dioxide and nitrogen dioxide?
Question 48 :
Choose the correct word for the given clue. Clue - Secretes thyroxine
Question 51 :
State the following statement True or False:-
In each hydra, there may be one or more bulges. These bulges are the developing new individuals and they are called buds.
Question 52 :
Sets of reproductive terms are given below. Choose the set that has an incorrect combination.
Question 54 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d0a5f59b460d7261f32b.PNG' />
In the above image, What happens during this process and what is formed?
Question 55 :
It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as positive. The other kind of charge is said to be negative. Is it TRUE OR FALSE?
Question 56 :
Why our hair stands when we take off woollen or polyester cloth?
Question 59 :
Lightning conductor cannot protect a building from lightning. State TRUE or FALSE.
Question 60 :
State true or false. All the stars are at the same distance from us.
Question 61 :
The time period between one full moon to the next full moon is slightly longer than 29 days. In many calendars this period is called a ?
Question 62 :
Which of the following is NOT a planet of the sun?
Question 66 :
When we hear a sound, does any part of our body vibrate?
Question 69 :
State True or False for the following statement:-
Vacuoles in animal cells are much smaller.
Question 72 :
What will be the results of using fossil fuels only when absolutely necessary ?
Question 78 :
State in India where earthquakes are more likely to strike is:
Question 80 :
An earthquake measures 3 on Richter scale. Is it likely to cause much damage?
Question 84 :
Paheli has heard that some of the endemic species may vanish. Is it true?
Question 86 :
The radius of Jupiter is 11 times the radius of the Earth. How many Earths can Jupiter accommodate?
Question 87 :
State True or False:
Pole star is a member of the solar system.
Question 89 :
Which of the following is NOT a planet of the Sun ?
Question 90 :
A group of stars that appear to form a pattern in the sky is known as a
