Science Test Gr.3(Class 7-10) Science Test For Gr-3(Class 7 to 10) 0% Time Limit 10 minutes Maximum Allowed Time Is over Your Paper Successfully Sent. school1 Science Test for group-3(Class 7 to 10) 1 / 50 Which of the following is a chemical change ? germination of seed both of these bursting of fire crackers 2 / 50 The respiratory organs of human beings are.. skin lungs gills 3 / 50 What is the chemical formula for glucose? CO2 C6H12O6 H2O 4 / 50 Which of these is not a source of light ? lamp & bulb sun & chair sun & stars 5 / 50 Explain the concept of the boiling point of a substance. The temperature at which a substance changes from liquid to solid The temperature at which a substance changes from gas to liquid The temperature at which a substance changes from liquid to gas throughout the liquid 6 / 50 What do cows give us? Cotton Water Milk 7 / 50 The chest is a cone shaped cage enclosing the.. heart lungs bones 8 / 50 What is the powerhouse of the cell? Nucleus Mitochondria Ribosome 9 / 50 The energy you gain when you are at a height from the ground is called kinetic energy potential energy thermal energy 10 / 50 How many ribs could you count ? 7 6 9 11 / 50 Global warming is the…............in temperature around the world. none of these increase decrease 12 / 50 …....... Rich foods are good for your teeth. protein iron calcium 13 / 50 Animals and plants have the features which make them to survive in a perticular habitat is called evolution specalisation adaptation 14 / 50 Plants that grow along the ground are called…........... climbers creepers trees 15 / 50 After processing of food in stomach it moves into small intestine anus large intestine 16 / 50 What are the characteristic of a desert plant both of these very small leaves deep roots 17 / 50 Which of the following is an acid-base indicator ? vinegar baking soda turmeric 18 / 50 Which of the following vitamins is prepared in our body with the help of sunlight ? vitamin A vitamin B vitamin D 19 / 50 What is 10 + 5? 18 15 12 20 / 50 Which device is used to measure temperature ? thermometer barometer manometer 21 / 50 Diseases which are caused by microorganisms are called infectious veneral contagious 22 / 50 What is the full form of DNA? Deoxy Nucleic Acid Deoxyribonucleic Acid Dioxynitric Acid 23 / 50 ….......... Help us to keep our teeth healthy. dentist police teacher 24 / 50 Define the term 'boiling point elevation.' The temperature at which a liquid changes into a gas The increase in temperature at which a substance boils when a solute is added to it The decrease in temperature at which a substance boils when a solute is added to it 25 / 50 What is the normal temperature of a healthy person ? ֯ 37 C ֯ 37 K ֯ 37 F 26 / 50 Air is a …........ compound element mixture 27 / 50 We get …...........from plants. cotton silk wool 28 / 50 What is the function of a catalyst in a reaction? Increases reaction speed Slows down reaction Changes the reaction completely 29 / 50 Who was the first person to walk on the moon? Neil Armstrong Yuri Gagarin Buzz Aldrin 30 / 50 Which of these is a form of water ? shadow steam breeze 31 / 50 Water forms….............when it is cooled. steam vapour ice 32 / 50 Who discovered gravity? Albert Einstein Isaac Newton Galileo Galilei 33 / 50 What is the SI unit of force? Watt Newton Joule 34 / 50 How many shoulder bones are there ? two one three 35 / 50 …........... Cut our food. incisors molars canines 36 / 50 What is the main component of Earth's atmosphere? Carbon Dioxide Oxygen Nitrogen 37 / 50 Which force keeps the planets in orbit around the Sun? Gravitational Force Magnetic Force Nuclear Force 38 / 50 All things are made up of wood matter plastic 39 / 50 Sound cannot travel in air vaccum room 40 / 50 Which of the plants does grow on mountains deodar pine both of these 41 / 50 Which gas is used in balloons to make them float? Oxygen Helium Carbon Dioxide 42 / 50 …........helps us to see things. sun light shadow 43 / 50 What is the ultimate sourse of energy for living organisms water energy solar energy wind energy 44 / 50 What is the chemical formula for common salt? NaCl KCl HCl 45 / 50 Exchange of gases take place through small openings on the surface of the leaves are called spiracles stomata trachea 46 / 50 Which gas do humans breathe in? Oxygen Carbon Helium 47 / 50 How many bones are in the hand ? 15 10 5 48 / 50 All matter is made up of… molecules air dust 49 / 50 How many premolars teeth found in mouth ? 8 4 6 50 / 50 Describe the process of diffusion with an example. Diffusion is the mixing of particles of two substances due to their random motion. Example: Spreading perfume in a room. Diffusion is the separation of substances through a semipermeable membrane. Example: Cooking pasta. Diffusion is the movement of particles from a region of lower concentration to higher concentration. Example: Lighting a candle. Your score is LinkedIn Facebook VKontakte 0% Exit
