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Mock Test GRADE-7

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science Sciences Quiz on Mock Test GRADE-7, created by Janice Aranha on 29/01/2020.
Janice Aranha
Quiz by Janice Aranha, updated more than 1 year ago
Janice Aranha
Created by Janice Aranha almost 5 years ago
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Resource summary

Question 1

Question
An electromagnet behaves as a magnet when current is
Answer
  • Stopped from flowing through it
  • Allowed to flow through
  • Not allowed to flow through
  • None of these

Question 2

Question
[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.
Answer
  • Oxygen
  • Nitrogen
  • Chlorine
  • Carbohydrates
  • Vitamins
  • Fats

Question 3

Question
Some bases along with their sources are given below . Which of them correctly match?
Answer
  • Calcium hydroxide -Lime water
  • Ammonium hydroxide-Window Cleaners
  • Magnesium Hydroxide-Whitewash
  • Potassium Hydroxide- Soap

Question 4

Question
Which of the following statements is /are incorrect?
Answer
  • The level of expansion of mercury is used to measure the temperature of a substance using a thermometer
  • The clinical thermometer measures more accurately than laboratory thermometer
  • The normal temperature of a human is the average body temperature of large number of healthy person

Question 5

Question
A carnivore with stripes on its body moves very fast while catching its prey. Where does it is more likely to found?
Answer
  • Polar region
  • Oceans
  • Deserts
  • Tropical Rain forests

Question 6

Question
complete 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]
Answer
  • Neutral solution
  • Acidic solution
  • Basic solution
  • Indicator
  • None of these

Question 7

Question
Sita 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
Answer
  • Sita stays in Bombay
  • Gita stays in Bombay
  • The humid weather of Bombay makes the statue prone to rusting.
  • Gita stays in Jaipur

Question 8

Question
Which of the following Statements is / are incorrect?
Answer
  • Phloem tubes are only found in the leaves of the plants as this is where the sugars are made
  • The volume of blood in an average human adult is 10 liters
  • Blood contains many more white blood cells than red blood cells
  • All the following are incorrect.

Question 9

Question
while 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.
Answer
  • convection
  • conduction
  • Radiation

Question 10

Question
In 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?
Answer
  • Because the stumps were too far away from the floodlights
  • Because the floodlights and the stumps were fixed and not moving
  • Because the length of the shadows do not change when there are multiple shadows
  • Because the length of the shadows change only when there is single light source

Question 11

Question
Which of the following statement is about periodic motion?
Answer
  • 1) Halley's comet is visible on earth every 75 years
  • 2) Planet Jupiter completes an orbit around the sun every 11.86 years
  • 3) The daily flight between Chennai and Delhi takes 3 hours to complete

Question 12

Question
Which of the following had to happen before Uranus, Neptune could be discovered?
Answer
  • a) Discovery of craters on the moon
  • b) Development of technology to land on the moon
  • c) Copernicus proposing a sun centered solar system
  • d) Development of technology to make high quality telescope

Question 13

Question
Which 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
Answer
  • a) Condensation of moisture in the air
  • b) Condensation of all gases in the air
  • c) Evaporation of moisture from the leaves
  • d) Evaporation of many gases from the leaves

Question 14

Question
Ever 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
Answer
  • Respiratory and Circulatory
  • Digestive and respiratory
  • respiratory and excretory
  • skeletal & respiratory

Question 15

Question
Among 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
Answer
  • Mercury

Question 16

Question
Swathi 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?
Answer
  • 1) Wear rubber soled shoes on the road as well as in the office
  • 2) Wear steel tipped high heeled shoes on the road as well as in the office
  • 3) Wear rubber soled shoes in the office and steel tipped high heeled shoes on the road
  • 4) Wear steel tipped high heeled shoes in the office and rubber soled shoes on the road

Question 17

Question
[blank_start]Snake slithering in a garden[blank_end] is a example of the animal moving without the help of the skeleton
Answer
  • Snake slithering in a garden
  • Fish swimming in water
  • Cockroach walking on a wall
  • Dog walking on the road

Question 18

Question
The 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]
Answer
  • straight path
  • Curved path
  • circular path
  • zig-zag path

Question 19

Question
Which of these is false about seeds?
Answer
  • They are living things
  • They can grow without air
  • Sunlight causes harm to them
  • They can grow even in the absence of water

Question 20

Question
Rahul brought a new pair of shoes, but was finding them quite slippery.What can he do to make them less slippery
Answer
  • 1) Apply polish evenly across the sole
  • 2) Stick a thin sheet of metal under the sole
  • 3) Cut a part of heel to reduce its height
  • 4) Attach a sheet of rubber to the bottom of the sole

Question 21

Question
A 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
Answer
  • dust
  • oxygen
  • nitrogen
  • carbondioxide

Question 22

Question
which of the following diseases are in right group?
Image:
Capture8 (binary/octet-stream)
Answer
  • a) Anaemia and poilio
  • b) scurvy and measles
  • c)dengue and beriberi
  • d)Night blindness and common cold

Question 23

Question
one of the reason why the shape of the rib cage can change because [blank_start]flexible cartilage[blank_end] allows the movement of ribs
Image:
Capture+3 (binary/octet-stream)
Answer
  • flexible cartilage
  • the ribs attached to the sternum
  • ribs are long curved bones
  • lungs have elastic walls

Question 24

Question
Which combination will form a shadow? Choose the correct option
Image:
Capture4 (binary/octet-stream)
Answer
  • A) I
  • B) II
  • C) III
  • d) No combination will form this shadow

Question 25

Question
The population of which organism remains steady till 45 degree Celsius?
Image:
Capture7 (binary/octet-stream)
Answer
  • a) P
  • b) Q
  • c) R
  • d) S

Question 26

Question
Solubility of the substance generally increases with increasing temperature.According to the graph which substance behaves in the opposite manner?
Image:
Capture9 (binary/octet-stream)
Answer
  • a) Substance 7
  • b) Substance 6
  • c) Substance 5
  • d) Substance 4

Question 27

Question
Which of the following is wrong observation?
Image:
Capture+10 (binary/octet-stream)
Answer
  • a) Only a
  • b) Only b
  • c) a,b & c
  • d) All the following

Question 28

Question
Which of the following is incorrect option?
Image:
C+111 (binary/octet-stream)
Answer
  • A)only iii
  • B) only iv
  • c) any ii, iii and iv
  • D) any of i,ii , iii or iv

Question 29

Question
Which of the following is true based on her results?
Image:
111 (binary/octet-stream)
Answer
  • A) wood R is the hardest
  • B)Wood Q is the softest
  • C)Wood P is harder than S
  • D)Wood S is softer than R

Question 30

Question
Which of the following is correct?
Image:
2 (binary/octet-stream)
Answer
  • A) Only A
  • B)Only B
  • C)Only C
  • D)Only D
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