Science & Nature


Science & Nature



  1. What is the process by which plants make their food ?


Ans: Photosynthesis.



  1. What gas do humans breathe in to live ?


Ans: Oxygen.



  1. Which planet is known as the Earth’s twin ?


Ans: Venus.



  1. What do we call the process of water turning into vapor ?


Ans: Evaporation.



  1. What is the basic unit of life ?


Ans: Cell.



  1. Which organ in the human body pumps blood ?


Ans: Heart.



  1. What is the largest organ in the human body ?


Ans: Skin.



  1. Which vitamin helps to improve vision ?


Ans: Vitamin A.



  1. What is the main source of energy for plants ?


Ans: Sunlight.



  1. What is the process by which plants release oxygen ?


Ans: Photosynthesis.



  1. What is the hardest natural substance on Earth ?


Ans: Diamond.



  1. What do you call an animal that can live both on land and in water ?


Ans: Amphibian.



  1. What do we call a scientist who studies animals ?


Ans: Zoologist.



  1. What animal can live without water for weeks ?


Ans: Camel.



  1. What is the name of the planet we live on ?


Ans: Earth.



  1. What kind of animal is a dolphin ?


Ans: Mammal.



  1. What is the process of liquid turning into a solid called ?


Ans: Freezing.



  1. Which insect can produce light ?


Ans: Firefly.



  1. What is the name of the gas that plants take in during photosynthesis ?


Ans: Carbon dioxide.



  1. What is the term used for the changing of water into ice ?


Ans: Freezing.