The Sun

The Sun is a massive, luminous sphere of hot plasma that is the central star of our solar system. It provides the Earth with heat, light, and energy, making life on our planet possible.

Key Facts about the Sun

• The Sun is about 4.6 billion years old.
• It is located at the center of the solar system, and all the planets, including Earth, orbit around it.
• The Sun's surface temperature is about 5,500 degrees Celsius (9,932 degrees Fahrenheit).
• The Sun's energy is produced through nuclear fusion, where hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process.
• Sunspots are temporary phenomena on the Sun's surface that appear as dark spots and are caused by magnetic activity.

Effects of the Sun on Earth

The Sun has a profound impact on Earth and its inhabitants:

• It provides light for photosynthesis, allowing plants to grow and produce oxygen.
• The Sun's energy drives the Earth's climate and weather patterns.
• Solar energy is harnessed for various purposes, including generating electricity through solar panels.
• Excessive exposure to the Sun's ultraviolet (UV) radiation can lead to sunburn and skin cancer.

Study Guide Questions

1. What is the Sun?
2. How old is the Sun?
3. What is the temperature of the Sun's surface?
4. How does the Sun produce energy?
5. What are sunspots, and what causes them?
6. What are some effects of the Sun on Earth?

[Sun] Related Worksheets and Study Guides:

• CalendarMathematics • Second Grade
• Earth's weather and seasonsScience • Second Grade