Class 7 Science

Chapter 7: Weather, Climate and Adaptations of Animals to Climate

STAGE 0: Foundation / Basics

The condition of air around us changes daily. Sometimes it is hot, cold, rainy, or windy.

These changes are called weather. The average weather condition of a place over a long time is called climate.

Weather

Weather refers to the day-to-day condition of the atmosphere.

Weather depends on:

• Temperature
• Humidity
• Rainfall
• Wind speed

Climate

Climate is the average weather condition of a place over many years.

Different places have different climates like: hot, cold, rainy, or dry.

Adaptation

Adaptation is the special feature or habit that helps animals live comfortably in their surroundings.

Adaptations in Polar Regions

Polar regions are extremely cold.

Example: Polar Bear

• Thick fur to keep warm
• Layer of fat under skin
• White colour for camouflage

Adaptations in Tropical Rainforests

Tropical rainforests are hot and receive heavy rainfall.

Examples:

• Monkey – long tail helps in climbing
• Elephant – large ears help in cooling
• Frog – sticky pads for climbing

STAGE 2: NCERT Textbook Questions & Answers

Q1. What is weather?

Weather is the day-to-day condition of the atmosphere.

Q2. What is climate?

Climate is the average weather condition of a place over a long time.

Q3. What is adaptation?

Adaptation is a special feature that helps animals survive in a habitat.

STAGE 3: Exam-Oriented Questions

Fill in the blanks:

• Day-to-day condition of air is called weather.
• Average weather condition is called climate.

Very Short Answer:

Name one animal found in polar regions.
Answer: Polar bear

Quick Revision Points

• Weather changes daily
• Climate is long-term weather pattern
• Animals show adaptations
• Polar and tropical regions have different climates