Objective

By the end of this lesson, you will be able to understand and identify the different phases of the moon.

Materials and Prep

• Pencil and paper
• Internet access or books about moon phases
• Printed moon phase chart (optional)

Activities

1. Start by discussing the concept of moon phases. Explain that the moon doesn't emit light of its own, but reflects the sunlight, causing different parts of it to be visible at different times.

2. Using the internet or books, research and find images or diagrams of the eight main phases of the moon: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent.

3. Draw a moon phase chart on your paper, labeling each phase. If you have a printed moon phase chart, you can use it as a reference.

4. Observe the moon in the sky each night for a week. Take note of its phase and compare it to your moon phase chart. Record your observations in a journal or on a separate sheet of paper.

5. Discuss your observations and findings. What patterns did you notice? How does the moon change from night to night?

Fourth Grade Talking Points

• "The moon doesn't produce its own light, but reflects the sunlight that shines on it."

• "There are eight main phases of the moon: new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, and waning crescent."

• "The moon goes through these phases in a predictable pattern, which repeats itself approximately every 29.5 days."

• "During a new moon, the side of the moon facing Earth is not visible to us. It appears as a dark circle in the sky."

• "During a full moon, the entire side of the moon facing Earth is visible to us. It appears as a bright, round circle in the sky."

• "The different phases of the moon are caused by the changing positions of the moon, Earth, and the sun."

• "Moon phases can affect various aspects of life on Earth, such as tides and animal behavior."