Its SciTime: Importance of Water - Free Printable

Let's solve the worksheet step by step and provide clear explanations for each answer.

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Question 01: Mark ✓ for correct statements and ✗ for false statements.

i. 1/3 of our body contains water.
✘ False
👉 *Explanation:* About two-thirds (2/3) of the human body is made up of water, not one-third. So this statement is incorrect.

ii. Helping digestion is one of the uses of water for our body.
✓ True
👉 *Explanation:* Water helps in breaking down food and aids in digestion by acting as a solvent and helping move nutrients through the digestive system.

iii. Water can dissolve many things. It is important when washing clothes.
✓ True
👉 *Explanation:* Water is a universal solvent and dissolves dirt, grease, and stains, making it essential for cleaning clothes.

iv. Water is important for animals in photosynthesis process.
✗ False
👉 *Explanation:* Photosynthesis is a process carried out by plants, not animals. Animals do not perform photosynthesis. Water is indeed important in photosynthesis, but only for plants.

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Question 02: Diagram shows different uses of water.

#### i. What are uses denoted by?

- A – Washing clothes
👉 The person is washing utensils or clothes in a basin with water.

- B – Cooking food
👉 The person is cooking on a stove, using water to boil or steam food.

#### ii. Write two benefits of E.
(E = Drinking water)

1. Helps maintain body temperature.
2. Keeps the body hydrated and supports proper functioning of organs.

> ✔ *Explanation:* Drinking water is vital for health. It helps in circulation, digestion, and removing waste from the body.

#### iii. Write one benefit of C.
(C = Bathing a child)

- Keeps the body clean and prevents diseases.
👉 Bathing removes dirt, sweat, and germs, which helps in maintaining hygiene and preventing infections.

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Question 03: The girl in the picture put water to a plant.

#### i. State two importance of water to a plant.

1. Water is used in photosynthesis to make food.
👉 Plants use water along with sunlight and carbon dioxide to produce glucose and oxygen.

2. Water helps in transportation of nutrients.
👉 Water carries dissolved minerals and nutrients from the soil to different parts of the plant.

> ✔ *Additional note:* Water also helps in maintaining turgidity (stiffness) in plant cells, keeping them upright.

#### ii. What will happen if we do not water a plant?

- The plant will wilt and eventually die.
👉 Without water, the plant cannot carry out photosynthesis, transport nutrients, or maintain cell structure. It loses turgor pressure, becomes dry, and dies over time.

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✔ Final Answers Summary:

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Q1:
i. ✗
ii. ✓
iii. ✓
iv. ✗

Q2:
i. A – Washing clothes
  B – Cooking food
ii. Two benefits of E (drinking water):
  - Keeps body hydrated
  - Helps in digestion and body functions
iii. One benefit of C (bathing):
  - Maintains hygiene and prevents diseases

Q3:
i. Two importance of water to a plant:
  - Used in photosynthesis
  - Transports nutrients
ii. If we don’t water a plant:
  - It will wilt and die due to lack of water and nutrients.

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