Question:- Which is the only metal that is in liquid form at the room temperature?
Answer:- Mercury.

Question:- What is molecule?
Answer:- Structural unit of any non-living thing.

Question:- Goitre is the disease, caused due to lack of?
Answer:- Iodine.

Question:- What is Distillation?
Answer:- The process of converting a liquid to gaseous form by heating and condensing the gas in another cool vessel, to form liquid is called distillation.

Question:- Which part of carrot plant is eaten?
Answer:- Root part.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- With the help of which method we can separate a mixture of sugar and sand?
Answer:- Sedimentation.

Question:- How many species of animals and plants are found in the world?
Answer:- There are about 16,00,000 species of animals and 4,00,000 species of plants in the world.

Question:- What is Filtration?
Answer:- When the components of a mixture have different solubilities, filtration can be used to separate them.

Question:- How many cells are there in a new born baby has?
Answer:- 2000 million cells.

Question:- Name the two types of root system.
Answer:- Tap Root System, Fibrous-Root System.

Question:- What is the biggest animal?
Answer:- Blue Whale.

Question:- Which disease is caused by deficiency of Vitamin E?
Answer:- Reproductive Disorders.

Question:- What is Sedimentation?
Answer:- Sedimentation is the process by which solid that sink are allowed to settle down to bottom of the container.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- Due to iron deficiency, the concentration of?
Answer:- Haemoglobin in the blood falls.

Question:- Which disease is caused by deficiency of Vitamin B?
Answer:- Beri-Beri.

Question:- What is habitat?
Answer:- The place where living organisms live.

Question:- What is the average life-span of tortoise?
Answer:- 120-150 years.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- What is Evaporation?
Answer:- Evaporation is a process in which we can separate soluble solids from a liquid-solid mixture.

Question:- Which disease is caused by deficiency of Vitamin D?
Answer:- Rickets.

Question:- Name three habitats on Earth.
Answer:- Terrestrial Habitat, Aquatic Habitat, Aerial Habitat.

Question:- What is Winnowing?
Answer:- This method is generally used by farmers to separate grain form husk after threshing.

Question:- What is reproduction?
Answer:- A process in which living beings produce young ones of their own kind.

Question:- Which mineral makes bones and teeth strong?
Answer:- Calcium.

Question:- What is stimulus?
Answer:- Something that leads to a reaction in living things.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- What is the tallest animal in the world?
Answer:- Giraffe.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- Which disease is caused by deficiency of Vitamin C?
Answer:- Scurvy.

Question:- Which disease is caused by deficiency of Vitamin A?
Answer:- Night Blindness.

Question:- What is the biggest land animal?
Answer:- Elephant.

Question:- Name the vitamins that our body can make?
Answer:- Vitamin A, Vitamin B, Vitamin C, Vitamin D.

Question:- Name a fruit rich in vitamin C.
Answer:- Lemon.

Question:- Severe cases of scurvy can cause?
Answer:- Sudden death.

Question:- Common salt is obtained form sea water by which process?
Answer:- Filtration.

Question:- What is excretion?
Answer:- Removal of wastes or unwanted materials from the body of an living organism.

Question:- Where does the cacti live?
Answer:- In hot desert.

Question:- What is the average life-span of bacteria?
Answer:- 20 minutes.

Question:- Name the components of food?
Answer:- Proteins, Carbohydrates, Fats, Vitamins, Minerals, Fiber and Water.

Question:- Who is called the father of biology?
Answer:- The ancient Greece Philosopher, Aristotle.

Question:- Why do plants require sunlight?
Answer:- For food production.

Question:- What is the tallest plant?
Answer:- Giant Redwood tree.