How Plants Grow

• List conditions needed for plant growth: water, air, sunlight, soil nutrients.
• Understand germination requirements for seeds.
• Observe stages from sprout to mature plant.
• Connect plant care to home gardens and farms in India.

Level 1 - Growth requirements

Plants need sunlight, water, air, and nutrients. Without one of these, healthy growth is affected.

Level 2 - Germination basics

Seeds need moisture, oxygen, and proper warmth to germinate. Sunlight is often needed more after sprouting for food making.

Level 3 - Growth stages

Seed -> sprout -> seedling -> mature plant -> flower/fruit. Roots absorb water and minerals; leaves prepare food.

Level 4 - Indian context

Kitchen gardens in many homes grow coriander, mint, and chili with regular watering and sunlight. Farmers monitor irrigation and soil quality for wheat and paddy. During extreme summer, mulching and shade help young plants survive high heat.

NCERT anchor: Looking Around 4, Ch 19 — Abdul in the Garden; Ch 14 — Basva's Farm (growing plants and crop care)

Two-pot sunlight test

Step 1 - Plant same seeds in two pots with equal soil and water.
Step 2 - Keep one pot in sunlight and one in dark cupboard.
Step 3 - Observe both for one week.
Step 4 - Sunlight pot grows greener and healthier.
Answer: Sunlight is essential for healthy growth after sprouting.

Water requirement check

Step 1 - Keep one seedling pot regularly watered.
Step 2 - Keep second pot dry for several days.
Step 3 - Compare leaf freshness and stem strength.
Step 4 - Infer role of water in transport and turgidity.
Answer: Lack of water causes wilting and poor growth.

• Name four things needed for healthy plant growth.
• Why does a plant kept in dark become weak?
• Can overwatering harm plants?
• What is the stage after seed in growth sequence?
• Stretch: Track one plant for 15 days and chart height change with watering and sunlight notes.

Revision tip: Balanced care - right water, light, air, and nutrients - gives healthy growth.

Open the Practice tab for graded questions on How Plants Grow.