7th Class Science Sample Paper

done Science Olympiad Model Test Paper-16 Total Questions - 40    [Download]

• question_answer1)
  Which one of the following can prepare its own food by the process of photosynthesis?
  A)
  Algae
  done clear
  B)
  Cuscuta plant
  done clear
  C)
  Mushroom
  done clear
  D)
  Yeast
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer2)
  Convert \[95{}^\circ F\] to \[{}^\circ C\].
  A)
  \[30{}^\circ C\]
  done clear
  B)
  \[35{}^\circ C\]
  done clear
  C)
  \[40{}^\circ C\]
  done clear
  D)
  \[45{}^\circ C\]
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer3)
  Colour of blood is red due to the presence of:
  A)
  Plasma
  done clear
  B)
  Haemoglobin
  done clear
  C)
  WBC
  done clear
  D)
  Platelets
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer4)
  Which one of the following is a secondary consumer?
  A)
  Tree
  done clear
  B)
  Deer
  done clear
  C)
  Horse
  done clear
  D)
  Lion
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer5)

  Direction: Questions from 5 to 8 are based on the following passage.

  Our body has a very special system for the digestion of food known as digestive system. The main parts of the human digestive system are mouth oesophagus stomach small intestine and large intestine. Salivary glands liver and pancreas are also associated with this system and play very important role in the digestion. Digestion of food starts in the mouth. In mouth food is cut chewed and grinded by teeth and gets mixed up with saliva. Then food moves to stomach through oesophagus. The inner lining of stomach secretes mucus hydrochloric acid and digestive juices which digest some more nutrients of food. However food is still partially digested. Now the partially digested food moves to the small intestine for the final digestion. The small intestine receives the secretions of liver and pancreas. These hormones along with intestinal hormones secreted by the walls of small intestine digest the food completely. The digested food is absorbed by the blood vessels and sent to the cells for the utilization and undigested food is expelled out of body through anus.

  Complete digestion of food takes place in which one of the following parts of digestive system?
  A)
  Stomach
  done clear
  B)
  Mouth
  done clear
  C)
  Small intestine
  done clear
  D)
  Large intestine
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer6)

  Direction: Questions from 5 to 8 are based on the following passage.
  Our body has a very special system for the digestion of food known as digestive system. The main parts of the human digestive system are mouth oesophagus stomach small intestine and large intestine. Salivary glands liver and pancreas are also associated with this system and play very important role in the digestion. Digestion of food starts in the mouth. In mouth food is cut chewed and grinded by teeth and gets mixed up with saliva. Then food moves to stomach through oesophagus. The inner lining of stomach secretes mucus hydrochloric acid and digestive juices which digest some more nutrients of food. However food is still partially digested. Now the partially digested food moves to the small intestine for the final digestion. The small intestine receives the secretions of liver and pancreas. These hormones along with intestinal hormones secreted by the walls of small intestine digest the food completely. The digested food is absorbed by the blood vessels and sent to the cells for the utilization and undigested food is expelled out of body through anus.
  Hydrochloric acid is released by inner linings of:

   
  A)
  Mouth
  done clear
  B)
  Stomach
  done clear
  C)
  Small intestine
  done clear
  D)
  Large intestine
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer7)

  Direction: Questions from 5 to 8 are based on the following passage.

  Our body has a very special system for the digestion of food known as digestive system. The main parts of the human digestive system are mouth oesophagus stomach small intestine and large intestine. Salivary glands liver and pancreas are also associated with this system and play very important role in the digestion. Digestion of food starts in the mouth. In mouth food is cut chewed and grinded by teeth and gets mixed up with saliva. Then food moves to stomach through oesophagus. The inner lining of stomach secretes mucus hydrochloric acid and digestive juices which digest some more nutrients of food. However food is still partially digested. Now the partially digested food moves to the small intestine for the final digestion. The small intestine receives the secretions of liver and pancreas. These hormones along with intestinal hormones secreted by the walls of small intestine digest the food completely. The digested food is absorbed by the blood vessels and sent to the cells for the utilization and undigested food is expelled out of body through anus.

  Which one of the following absorbs the digested food from the small intestine and sent them to the cells?
  A)
  Blood vessels     
  done clear
  B)
  Bones
  done clear
  C)
  Nerves
  done clear
  D)
  Liver
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer8)

  	Direction: Questions from 5 to 8 are based on the following passage.
  Our body has a very special system for the digestion of food known as digestive system. The main parts of the human digestive system are mouth oesophagus stomach small intestine and large intestine. Salivary glands liver and pancreas are also associated with this system and play very important role in the digestion. Digestion of food starts in the mouth. In mouth food is cut chewed and grinded by teeth and gets mixed up with saliva. Then food moves to stomach through oesophagus. The inner lining of stomach secretes mucus hydrochloric acid and digestive juices which digest some more nutrients of food. However food is still partially digested. Now the partially digested food moves to the small intestine for the final digestion. The small intestine receives the secretions of liver and pancreas. These hormones along with intestinal hormones secreted by the walls of small intestine digest the food completely. The digested food is absorbed by the blood vessels and sent to the cells for the utilization and undigested food is expelled out of body through anus.

  Which one of the following glands is associated with digestive system?
  A)
  Salivary glands
  done clear
  B)
  Liver
  done clear
  C)
  Pancreas
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer9)
  What happens when we touch ice?
  A)
  Heat flows from our body to ice
  done clear
  B)
  Heat flows from ice to our body
  done clear
  C)
  Temperature flows from our body to ice
  done clear
  D)
  Temperature flows from ice to our body
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer10)
  Which one of the following cells controls the opening and closing of stomatal pores in the leaves of a green plant?
  A)
  Chlorophyll
  done clear
  B)
  Chloroplast
  done clear
  C)
  Guard cells
  done clear
  D)
  Xylem
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer11)
  Which one of the following types of teeth in our mouth is specialized for piercing and tearing the food?
  A)
  Incisors
  done clear
  B)
  Canines
  done clear
  C)
  Premolars
  done clear
  D)
  Molars
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer12)

  Which one of the following statements is correct?

  Statement 1: The natural silk which is obtained from the cocoons is made of protein.

  Statement 2: The natural silk which is obtained from the cocoons is made of cellulose.

  A)
  Statement 1
  done clear
  B)
  Statement 2
  done clear
  C)
  Both statements are correct
  done clear
  D)
  Both statements are incorrect
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer13)
  Heat from the sun reaches on the Earth by the process of:
  A)
  Conduction
  done clear
  B)
  Convection
  done clear
  C)
  Radiation
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer14)
  Bed-rocks are found below which one of the following layers of soil?
  A)
  A-horizon
  done clear
  B)
  B-horizon
  done clear
  C)
  C-horizon
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer15)
  Look at the following figure By which one of the following ways heat energy reaches from end A to end B?
  A)
  Conduction
  done clear
  B)
  Convection
  done clear
  C)
  Advection
  done clear
  D)
  Radiation
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer16)
  Bases turn china rose indicator to:
  A)
  Magenta
  done clear
  B)
  Green
  done clear
  C)
  Red
  done clear
  D)
  Blue
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer17)
  Which one of the following statements is incorrect about the chemical changes?
  A)
  In chemical change new substance is formed
  done clear
  B)
  In chemical change a lot of energy is absorbed or given out
  done clear
  C)
  A chemical change is a permanent change
  done clear
  D)
  A chemical change is usually reversible
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer18)
  During respiration, the energy rich food (like glucose) is broken down by oxygen into:
  A)
  Carbon dioxide and nitrogen
  done clear
  B)
  Carbon dioxide and oxygen
  done clear
  C)
  Carbon dioxide and water
  done clear
  D)
  Water and ammonia
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer19)
  Which one of the following is a mineral acid?
  A)
  Acetic acid
  done clear
  B)
  Tartaric acid
  done clear
  C)
  Formic acid
  done clear
  D)
  Nitric acid
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer20)
  The chemical reaction, in which heat is given out, is known as:
  A)
  Exothermic reaction
  done clear
  B)
  Endothermic reaction
  done clear
  C)
  Decomposition reaction
  done clear
  D)
  Neutralization reaction
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer21)
  Which one of the following factors decides weather at a place?
  A)
  Temperature
  done clear
  B)
  Wind speed
  done clear
  C)
  Humidity
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer22)
  Which one of the following statements is correct about the concave mirror?
  A)
  Concave mirror always forms real and inverted image
  done clear
  B)
  Concave mirror always forms virtual and erect image
  done clear
  C)
  Concave mirror forms real and inverted image when object is at infinity
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer23)
  The water table in an area will go down if:
  A)
  We do not use groundwater
  done clear
  B)
  We use groundwater slowly than it is replenished
  done clear
  C)
  We use groundwater faster than it is replenished
  done clear
  D)
  We allow to grow forest there
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer24)
  Which one of the following is the highest layer of vegetation in a forest?
  A)
  Forest floor
  done clear
  B)
  Understorey
  done clear
  C)
  Shrub layer
  done clear
  D)
  Canopy
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer25)
  Match the following.

  1.	polar climate	A.	extremely cold and dry
  2.	tropical climate	B.	very hot and dry
  3.	desert climate	C.	very hot and humid

  A)
  1 - A, 2 - B, 3 - C
  done clear
  B)
  1 - A, 2 - C, 3 - B
  done clear
  C)
  1 - C, 2 - B, 3 - A
  done clear
  D)
  1 - C, 2 - A, 3 - B
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer26)
  Which one of the following is a special adaptation for cold climate?
  A)
  Blubber
  done clear
  B)
  Sweating                                   
  done clear
  C)
  Long ears
  done clear
  D)
  Streamlined bodies                          
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer27)
  Thunderstorm frequently occurs in:
  A)
  Hot and humid tropical areas
  done clear
  B)
  Hot and dry temperate areas
  done clear
  C)
  Cold and dry tropical areas
  done clear
  D)
  Extremely cold and humid polar regions
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer28)

  Which one of the following statements is correct?

  Statement 1: Centre of a cyclone has very low air pressure.

  Statement 2: Centre of a cyclone has very high air pressure.

  A)
  Statement 1
  done clear
  B)
  Statement 2
  done clear
  C)
  Both statements are correct
  done clear
  D)
  Both statements are incorrect
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer29)
  Which one of the following types of soil has maximum water holding capacity?
  A)
  Clayey soil
  done clear
  B)
  Loamy soil
  done clear
  C)
  Sandy soil
  done clear
  D)
  All of these                
  done clear
  E)
   None of these                             
  done clear
  View Answer play_arrow

• question_answer30)
  What the tiny air sacs present at the ends of bronchioles called?
  A)
  Alveoli
  done clear
  B)
  Trachea
  done clear
  C)
  Bronchus
  done clear
  D)
  Diaphragm
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer31)
  Which one of the following substances is carried by blood in our body?
  A)
  Digested food
  done clear
  B)
  Carbon dioxide
  done clear
  C)
  Oxygen
  done clear
  D)
  Water
  done clear
  E)
  All of these
  done clear
  View Answer play_arrow

• question_answer32)
  Vascular tissues are present in which one of the following parts of a plant?
  A)
  Roots
  done clear
  B)
  Stems
  done clear
  C)
  Leaves
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer33)
  In the given figure, reproduction in yeast has been shown. This method of asexual reproduction is known as:
  A)
  Fragmentation
  done clear
  B)
  Spore formation
  done clear
  C)
  Budding
  done clear
  D)
  All of these
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer34)
  Which of the following is the main constituent of blood plasma?
  A)
  Water
  done clear
  B)
  Common salt
  done clear
  C)
  Sugar
  done clear
  D)
  Urea
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer35)
  Look at the following graph and choose the correct option.
  A)
  OA represents uniform speed
  done clear
  B)
  OB represents uniform speed
  done clear
  C)
  OCDE represents uniform speed
  done clear
  D)
  OB represents zero speed
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer36)
  Which one of the following is a safety device that prevents electric fires and damage to electrical appliances due to excessive flow of current?
  A)
  Switch
  done clear
  B)
  Fuse
  done clear
  C)
  Electric bulb
  done clear
  D)
  Battery
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer37)
  A, B, C and D are four metal wires of same length and same thickness. Which metal wire has the highest electrical resistance?
  A)
  Wire A made of copper
  done clear
  B)
  Wire B made of gold
  done clear
  C)
  Wire C made of aluminium
  done clear
  D)
  Wire D made of tungsten
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer38)
  What is the function of screens of vertical bars in a wastewater treatment plant?
  A)
  It removes large rubbish objects like rags, sticks, plastic bags etc. from the sewage
  done clear
  B)
  It removes grit and sand from the sewage
  done clear
  C)
  It removes all the organic matter from the sewage
  done clear
  D)
  It removes dirty water from the sewage
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer39)
  Speed of car A, car B and car C are 30 km/h, 8.61 m/s and 483.3 m/min respectively. Which among the given cars will travel the distance of 100 m in the least time?
  A)
  Car A               
  done clear
  B)
  Car B
  done clear
  C)
  Car C               
  done clear
  D)
  Both Car A and Car B
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow

• question_answer40)
  Rajan is observing his image in a plane mirror. The distance between the mirror and his image is 5 m. If he moves 2 m away from the mirror, then the distance between Rajan and his image will be:
  A)
  7 m
  done clear
  B)
  10 m
  done clear
  C)
  14 m    
  done clear
  D)
  28 m
  done clear
  E)
  None of these
  done clear
  View Answer play_arrow