📚 Topic Summary
Light is essential for us to see the world around us. Light sources can be either natural or artificial. Natural light sources, like the sun and stars, produce light on their own. Artificial light sources, like light bulbs and phones, need electricity or another power source to create light. Understanding the difference helps us appreciate how we use light every day.
💡 Part A: Vocabulary
Match the term with its correct definition:
| Term |
Definition |
| 1. Natural Light |
a. Light made by humans |
| 2. Artificial Light |
b. The primary natural light source for Earth |
| 3. Sun |
c. Light that comes from nature |
| 4. Light Bulb |
d. An example of artificial light |
| 5. Stars |
e. Another natural light source in the night sky |
✍️ Part B: Fill in the Blanks
Complete the following sentences with the correct words:
The _______ is a natural source of light that helps us see during the day. A _______ is an example of an artificial light source that we use at night. _______ light sources are created by humans, while _______ light sources exist naturally.
🤔 Part C: Critical Thinking
Can you think of three ways that artificial light has improved our lives? Explain your answer.