Earth's Shape, Movements, and Life: A Journey Through Our Planet

The video tutorial for Class 3 Science covers various aspects of Earth, including its shape, life it supports, and movements like rotation and revolution. It explains how Earth's rotation causes day and night and how its revolution around the Sun defines a year. The tutorial also highlights environmental concerns, such as pollution and deforestation, emphasizing the impact of human activities on the environment.

Which planet is known to support life?

• Jupiter

• Venus

• Mars

• Earth

What shape did people historically believe the Earth to be?

• Square

• Round

• Flat

• Oval

What is the term for the Earth's spinning movement on its axis?

• Revolution

• Rotation

• Orbiting

• Circling

How long does it take for the Earth to complete one rotation?

• 72 hours

• 48 hours

• 24 hours

• 12 hours

What causes day and night on Earth?

• Earth's rotation

• Moon's phases

• Earth's revolution

• Sun's movement

How many days does it take for the Earth to complete one revolution around the Sun?

• 180 days

• 90 days

• 30 days

• 365 days

How long does Mercury take to complete one rotation?

• 365 days

• 88 days

• 59 days

• 24 hours

What is a major cause of air pollution?

• Recycling

• Using solar energy

• Planting trees

• Burning garbage

What is one way humans have dirtied water bodies?

• Fishing

• Boating

• Swimming

• Industrial waste

Why are trees cut down in large numbers?

• To reduce pollution

• To increase wildlife

• For growing crops and making houses

• For recreational purposes