Quiz
GRADE-7 Mock Test Asset P2
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Fragen in diesem Quiz (45)
1An electromagnet behaves as a magnet when current is
- AStopped from flowing through it
- BAllowed to flow through
- CNot allowed to flow through
- DNone of these
2[blank_start]Carbohydrates[blank_end] are synthesized by plants through the process of photosynthesis. These are made up of Carbon ,Hydrogen and [blank_start]Oxygen[blank_end] . These are used to Synthesis other components of food such as proteins and fats.
- AOxygen
- BNitrogen
- CChlorine
- DCarbohydrates
- EVitamins
- FFats
3Some bases along with their sources are given below . Which of them correctly match?
- ACalcium hydroxide -Lime water
- BAmmonium hydroxide-Window Cleaners
- CMagnesium Hydroxide-Whitewash
- DPotassium Hydroxide- Soap
4Which of the following statements is /are incorrect?
- AThe level of expansion of mercury is used to measure the temperature of a substance using a thermometer
- BThe clinical thermometer measures more accurately than laboratory thermometer
- CThe normal temperature of a human is the average body temperature of large number of healthy person
5A carnivore with stripes on its body moves very fast while catching its prey. Where does it is more likely to found?
- APolar region
- BOceans
- CDeserts
- DTropical Rain forests
6complete the following sentence.
The solution which do not change the colour of either red or blue litmus are known as [blank_start]Neutral solution[blank_end]- ANeutral solution
- BAcidic solution
- CBasic solution
- DIndicator
- ENone of these
7Sita and Gita are two sisters staying in different cities . both were gifted an iron statue by their brother .Sita has to take a lot of care to maintain the shine of the statue , however , Gita does not need to make such efforts . This is because
- ASita stays in Bombay
- BGita stays in Bombay
- CThe humid weather of Bombay makes the statue prone to rusting.
- DGita stays in Jaipur
8Which of the following Statements is / are incorrect?
- APhloem tubes are only found in the leaves of the plants as this is where the sugars are made
- BThe volume of blood in an average human adult is 10 liters
- CBlood contains many more white blood cells than red blood cells
- DAll the following are incorrect.
9while cooking , closing the cooking pan with the lid allows the food to cook faster, because the lid reduces the loss of heat through [blank_start]convection[blank_end] to the surrounding.
- Aconvection
- Bconduction
- CRadiation
10In a cricket stadium when the flood lights were switched on at 7:00 p:m , multiple shadows of the stumps appeared. It was found that the length of the shadows of the stump remained the same throughout the match.Why did that happen?
- ABecause the stumps were too far away from the floodlights
- BBecause the floodlights and the stumps were fixed and not moving
- CBecause the length of the shadows do not change when there are multiple shadows
- DBecause the length of the shadows change only when there is single light source
11Which of the following statement is about periodic motion?
- A1) Halley's comet is visible on earth every 75 years
- B2) Planet Jupiter completes an orbit around the sun every 11.86 years
- C3) The daily flight between Chennai and Delhi takes 3 hours to complete
12Which of the following had to happen before Uranus, Neptune could be discovered?
- Aa) Discovery of craters on the moon
- Bb) Development of technology to land on the moon
- Cc) Copernicus proposing a sun centered solar system
- Dd) Development of technology to make high quality telescope
13Which of the following is incorrect?
Early in the morning we can see liquid droplets on the leaves. Some drops are due to the water absorbed from the ground appearing on the leaves.The other reason for this to appear is- Aa) Condensation of moisture in the air
- Bb) Condensation of all gases in the air
- Cc) Evaporation of moisture from the leaves
- Dd) Evaporation of many gases from the leaves
14Ever cell in our body requires oxygen.[blank_start]Respiratory and Circulatory[blank_end] are the two body systems work together to transport oxygen to the cells
- ARespiratory and Circulatory
- BDigestive and respiratory
- Crespiratory and excretory
- Dskeletal & respiratory
15Among the 8 planets of the solar system [blank_start]Mercury[blank_end] has a least gravity because it has least mass among all the planets
- AMercury
16Swathi has some rubber soled shoes and some tipped high heeled shoes.She would like her shoes to last long and also to protect the marble floor of her office from scratches.What should she do?
- A1) Wear rubber soled shoes on the road as well as in the office
- B2) Wear steel tipped high heeled shoes on the road as well as in the office
- C3) Wear rubber soled shoes in the office and steel tipped high heeled shoes on the road
- D4) Wear steel tipped high heeled shoes in the office and rubber soled shoes on the road
17[blank_start]Snake slithering in a garden[blank_end] is a example of the animal moving without the help of the skeleton
- ASnake slithering in a garden
- BFish swimming in water
- CCockroach walking on a wall
- DDog walking on the road
18The distance between earth and moon is greater than the distance between India & America.Light from the moon reaches the earth naturally but light from India cannot reach America in the same way because light normally travels in a [blank_start]straight line[blank_end]
- Astraight path
- BCurved path
- Ccircular path
- Dzig-zag path
19Which of these is false about seeds?
- AThey are living things
- BThey can grow without air
- CSunlight causes harm to them
- DThey can grow even in the absence of water
20Rahul brought a new pair of shoes, but was finding them quite slippery.What can he do to make them less slippery
- A1) Apply polish evenly across the sole
- B2) Stick a thin sheet of metal under the sole
- C3) Cut a part of heel to reduce its height
- D4) Attach a sheet of rubber to the bottom of the sole
21A vacuum cleaner when switched on sucks in a mixture of air and lot of dust along with other substances.The air passes through a porous paper or cloth bag and then comes out.The air that comes out would have less of [blank_start]dust[blank_end] as compared to the air sucked in
- Adust
- Boxygen
- Cnitrogen
- Dcarbondioxide
22which of the following diseases are in right group?
- Aa) Anaemia and poilio
- Bb) scurvy and measles
- Cc)dengue and beriberi
- Dd)Night blindness and common cold
23one of the reason why the shape of the rib cage can change because [blank_start]flexible cartilage[blank_end] allows the movement of ribs
- Aflexible cartilage
- Bthe ribs attached to the sternum
- Cribs are long curved bones
- Dlungs have elastic walls
24Which combination will form a shadow?
Choose the correct option
- AA) I
- BB) II
- CC) III
- Dd) No combination will form this shadow
25The population of which organism remains steady till 45 degree Celsius?
- Aa) P
- Bb) Q
- Cc) R
- Dd) S
26Which of the following is wrong observation?
- Aa) Only a
- Bb) Only b
- Cc) a,b & c
- Dd) All the following
27Which of the following is incorrect option?
- AA)only iii
- BB) only iv
- Cc) any ii, iii and iv
- DD) any of i,ii , iii or iv
28Which of the following is true based on her results?
- AA) wood R is the hardest
- BB)Wood Q is the softest
- CC)Wood P is harder than S
- DD)Wood S is softer than R
29Which of the following is correct?
- AA) Only A
- BB)Only B
- CC)Only C
- DD)Only D
30Rakhi adds 5 tablespoons of sugar to about 1 litre (5 glasses) of water in a vessel and stirs the water till the sugar dissolves. She then starts boiling the water.
After every 2 minutes, she takes out 2 spoons of this water and keeps it in different vessels to cool. On tasting the different samples of cooled water, she will find that __________.
- Aall the samples taste like plain water
- BB
each sample tastes sweeter than the previous one - CC
each sample tastes less sweet than the previous one - DD
all the samples taste sweet like the original solution
31A plant was exposed to different intervals of light and darkness to check the flowering of the plant. The table below shows the observations recorded.
What can be said about the flowering of the plant based on the data given in the table above?
- AA minimum duration of darkness is necessary for the plant to flower.
- BA minimum duration of light is necessary for the plant to flower.
- CThe plant flowers only when exposed to different intervals of light and darkness.
- DFlowering does not depend on the amount of light or darkness.
32Why is it hotter in summer than in winter?
- Athis is due to the Earth being closer to the Sun in summer.
- Bthis is due to the tilt in the axis of the Earth.
- Cthis is due to the rotation of the Earth on its axis.
- Dthis is due to hot winds that blow on the Earth's surface.
33Rahul ties a string around a stone. He takes three beakers with equal volumes of water, cooking oil and kerosene. He then immerses the stone completely in each of the 3 beakers, one after the other. What is he likely to find?
- AThe level of the liquid falls by different amounts in the three beakers.
- BThere is an unequal increase in the level of the three liquids.
- CThere is an equal increase in the level of the three liquids.
- DThe level of the liquid does not change in any of the three beakers.
34Which of the following is a physical change and not a chemical change?
- Acast iron solidifying from a blast furnace
- Bzinc dissolving in hydrochloric acid
- Cburning petrol to form liquid water and carbon dioxide gas
- Dshiny steel changing to brown rust powder
35The formula for sodium sulphate is Na2S2O3.
What is the ratio of Na : S : O atoms in the formula?- A2 : 3 : 3
- B3 : 3 : 2
- C2 : 2 : 3
- D3 : 2 : 2
36Why is tin used to coat steel cans
- Ait alloys with iron to make a stronger can
- Bit increases the shelf life of the food
- Cit stops poisonous iron dissolving in the food liquids
- Dits an unreactive metal and isn't readily attacked by acidic food juices
37From the four circuits shown, which will have 'the dimmest lit bulb or bulbs'? Note that the bulbs are identical and the batteries identical.
- Acircuit 17
- Bcircuit 08
- Ccircuit 06
- Dcircuit 04
38The diagram shows a sequence of eight moon positions as it orbits the Earth. When viewed from Earth, which moon position corresponds to the waning crescent phase?
- Amoon position 2
- Bmoon position 4
- Cmoon position 8
- Dmoon position 6
39How far has the train travelled by 2:30pm?
- A100 km
- B60 km
- C95 km
- D90 km
40Farmers often use the technique of ‘selective breeding’ in order to obtain cows that give high yields of milk. Which of the following describes this technique?
Cows that produce a lot of milk are ________________________- AChosen to be milked.
- BAllowed to produce offspring.
- CPut on a special diet to produce good quality milk.
- DKept separately from the cows that are not producing good quality milk.
41Solubility of substance increases with increasing temperature. According to the graph, which substance behaves in an opposite manner. Given below is a graph showing the solubility of different substances in water at different temperature.
- ASubstance 7
- BSubstance 5
- CSubstance 6
- DSubstance 4
42Read the given statements and select the correct option.
Statement 1: To neutralize the effect of a bee sting, that portion of the body is rubbed with moist baking soda.
Statement 2: Baking soda contains sodium chloride which neutralizes the effect of acid injected by a bee sting.- ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
- BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of the statement.
- CStatement 1 is true and statement 2 is false
- DBoth statements 1 and 2 are false.
43Ren had two pots each of the following types of plants: chili, tomato, and rose. All the plants in the six pots were roughly of the same age and were equally healthy.
He watered one pot of each type of plant with fresh water and another pot of the same type of plant with an equal quantity of wastewater. He measured the height of the plants every day for two weeks. What can Ren find out from his experiment?
i) Which of the above types of plants can be grown using wastewater.
ii) If wastewater gives better plant growth.
iii) If all the above types of plants require the same quantity of water.- Aonly i
- Bonly I and ii
- Conly ii
- Dall- I, ii, and iii
44The urinary bladder is the organ that collects waste and stores urine excreted by the kidneys before disposal by urination.
Birds do not have a urinary bladder. Instead they frequently excrete the wastes in a semi solid form using minimal water. How does this absence of a urinary bladder help them?- ABreathe in more oxygen
- BReduce their requirement of water
- CMaintain a low body weight for flight
- DExcrete large amounts of waste at a time
45 Suvarna has three mixtures P,Q and R of salt and sand. She wants to separate the salt from the three mixtures by the following procedure shown in the diagram below.
For which mixture can she use the smallest quantity of water to separate all the salt?
- AMixture P
- BMixture Q
- CMixture R
- DAll three mixtures need the same amount of water as they will have the same amount of sand.
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- Beschreibung
- 7th grade Science Quiz am GRADE-7 Mock Test Asset P2 , erstellt von Alka N am 22/01/2022.
- Autor
- Alka N
- Sprache
- English
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- 1.638
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