Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the average velocity of Earth as it orbits the sun?
What is the average velocity of Earth as it orbits the sun?
- 18.5 miles per second (correct)
- 15 miles per second
- 20 miles per second
- 25 miles per second
What is the distance between Earth and the sun on average?
What is the distance between Earth and the sun on average?
- 110 million miles
- 100 million miles
- 85 million miles
- 93 million miles (correct)
How often does Earth rotate on its axis?
How often does Earth rotate on its axis?
- Every 24 hours
- Every 23.9 hours (correct)
- Every 25 hours
- Every 23 hours
What is the tilt of Earth's axis of rotation away from the plane of its orbit around the sun?
What is the tilt of Earth's axis of rotation away from the plane of its orbit around the sun?
Signup and view all the answers
In which season does the hemisphere tilted closer to the sun experience?
In which season does the hemisphere tilted closer to the sun experience?
Signup and view all the answers
Study Notes
Unit 2: Uniqueness of the Earth as a Habitat for Living Beings
Overview of the Earth
- We live on the planet called Earth.
- Earth is also known as the Blue Planet.
Characteristics of the Earth
- Three special characteristics of the planet Earth:
- Rotation period: 24 hours
- Rotation speed: 1,674 km/h
- Revolution period: 365.25 days
- Revolution speed: 29.78 km/s
- Distance from the sun: 149.6 million km
Sun's Radiation
- It takes approximately 8 minutes and 20 seconds for the sun's radiation to reach the Earth.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge about the unique characteristics of planet Earth as a habitat for living beings in this Grade 8 geography quiz from Nalanda Vidyalaya, Colombo. Questions cover topics such as the name of our planet, why it is called the blue planet, and special characteristics of Earth.
