Why Is Earthâs Core So Hot? āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻā§āĻ¨ā§āĻĻā§ā§° (Core) āĻāĻŽāĻžāĻ¨ āĻā§°āĻŽ āĻāĻŋāĻ¯āĻŧ ?
- The Earth formed billions of years ago. : āĻĒā§āĻĨāĻŋā§ąā§ āĻā§āĻāĻŋ āĻā§āĻāĻŋ āĻŦāĻā§° āĻāĻāĻ¤ā§ āĻāĻ āĻ¨ āĻšā§āĻāĻŋāĻ˛āĨ¤
- A large amount of heat was trapped during its formation. : āĻāĻ āĻ¨ āĻšā§ā§ąāĻžā§° āĻ¸āĻŽāĻ¯āĻŧāĻ¤ āĻŦāĻšā§āĻ¤ āĻ¤āĻžāĻĒ āĻāĻŋāĻ¤ā§°āĻ¤ āĻ§ā§°āĻŋ āĻĨāĻžāĻāĻŋāĻ˛āĨ¤
- Heavy elements sank toward the center of the Earth's core. : āĻāĻžā§°ā§ āĻāĻĒāĻžāĻĻāĻžāĻ¨āĻ¸āĻŽā§āĻš āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻā§āĻ¨ā§āĻĻā§ā§°ā§° āĻĢāĻžāĻ˛ā§ āĻ¨āĻžāĻŽāĻŋ āĻ’āĻ˛āĨ¤
- This sinking created more heat due to strong pressure. : āĻāĻ āĻ¨āĻžāĻŽāĻžā§° āĻĢāĻ˛āĻ¤ āĻ āĻ§āĻŋāĻ āĻāĻžāĻĒā§° āĻŦāĻžāĻŦā§ āĻā§°ā§ āĻ¤āĻžāĻĒ āĻā§āĻĒāĻ¨ā§āĻ¨ āĻšāĻ˛āĨ¤
- Radioactive elements release energy inside Earth. : āĻāĻŋāĻ¤ā§°āĻ¤ āĻĨāĻāĻž āĻ¤ā§āĻāĻ¸ā§āĻā§ā§°āĻŋāĻ¯āĻŧ āĻāĻĒāĻžāĻĻāĻžāĻ¨āĻŦā§ā§°ā§ āĻļāĻā§āĻ¤āĻŋ āĻŽā§āĻāĻ˛āĻŋ āĻā§°ā§āĨ¤
- This energy keeps the core extremely hot. : āĻāĻ āĻļāĻā§āĻ¤āĻŋā§° āĻŦāĻžāĻŦā§ āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻā§āĻ¨ā§āĻĻā§ā§° āĻ¸āĻĻāĻžāĻ¯āĻŧ āĻŦāĻšā§āĻ¤ āĻā§°āĻŽ āĻĨāĻžāĻā§āĨ¤
Key Point: Earth’s core remains hot because of heat trapped during formation and energy released by radioactive elements.
āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻāĻ āĻ¨āĻāĻžāĻ˛ā§āĻ¨ āĻ¤āĻžāĻĒ āĻā§°ā§ āĻ¤ā§āĻāĻ¸ā§āĻā§ā§°āĻŋāĻ¯āĻŧ āĻāĻĒāĻžāĻĻāĻžāĻ¨ā§° āĻĒā§°āĻž āĻŽā§āĻā§āĻ¤ āĻļāĻā§āĻ¤āĻŋā§° āĻŦāĻžāĻŦā§ āĻĒā§āĻĨāĻŋā§ąā§ā§° āĻā§āĻ¨ā§āĻĻā§ā§° āĻŦāĻšā§āĻ¤ āĻā§°āĻŽ āĻĨāĻžāĻā§āĨ¤