The Sun, Moon, and stars are bright objects we can see in the sky. The Sun lights the daytime sky and helps warm Earth. At night, the Moon and stars are easier to see because the sky is dark.
Learning about them helps students notice patterns in nature, such as day and night.
Understanding Early Learners: The Sun, Moon, and Stars
Earth is always turning slowly, like a ball spinning. One full turn takes about one day. This turning makes the Sun seem to travel across the sky.
In the morning, it appears low in the east. Around the middle of the day, it appears higher. Later, it seems to move toward the west.
The Sun is not really going around Earth each day. Earth is turning, and people on its surface move with it. This is a useful idea to practise with a globe and a lamp.
Sunlight makes shadows. A shadow forms when an object blocks light. On a sunny day, stand outside and notice your shadow on the ground.
In the morning and late afternoon, shadows are long because the sunlight comes from low in the sky. Near the middle of the day, shadows are shorter.
Trees, playground equipment, and buildings all make shadows. Watching one shadow several times in a day helps children connect the moving Sun they see with Earth’s turning.
The Moon seems to change shape over many nights. Sometimes it looks like a thin curved sliver. Sometimes it looks like a full round circle.
These shapes are called phases. The Moon stays round all the time, but people see different amounts of its sunlit half as it moves around Earth. A lunar month takes about four weeks.
Keeping a simple Moon diary can show this pattern. Draw the Moon at the same time each evening when it is visible, then compare the drawings after several days.
Most stars stay in nearly the same patterns from night to night. People have given names to some patterns, called constellations. For example, a group of stars may be imagined as an animal or a person.
The stars in one constellation are not usually close together in space. They only look grouped from Earth. Some stars appear brighter than others.
Brightness can depend on how much light a star gives out and how far away it is. City lights can hide faint stars, so more stars are often visible in dark places.
Sky watching needs safe habits. Never look straight at the Sun. Its bright light can hurt eyes, even when it does not feel painful.
Use shade, look at shadows, or watch how sunlight changes the ground instead. At night, let eyes adjust to the darkness for a few minutes. A notebook, pencil, and a trusted adult are enough for careful observations.
Notice the date, time, weather, and where an object appears in the sky. Small observations collected over time reveal patterns that are hard to notice in only one look.
Key Facts
- The Sun is a star that is closest to Earth.
- The Sun gives Earth light and heat during the day.
- The Moon does not make its own light, it reflects sunlight.
- Stars are faraway suns that look small because they are very distant.
- Day happens when your part of Earth faces the Sun.
- Night happens when your part of Earth faces away from the Sun.
Vocabulary
- Sun
- The Sun is the star closest to Earth and gives us light and heat.
- Moon
- The Moon is a natural object that travels around Earth and reflects sunlight.
- Star
- A star is a huge glowing ball of hot gas far away in space.
- Day
- Day is the time when the Sun lights the sky where you are.
- Night
- Night is the time when the sky is dark because your place on Earth faces away from the Sun.
Common Mistakes to Avoid
- Saying the Moon makes its own light is wrong because the Moon shines by reflecting light from the Sun.
- Thinking stars disappear during the day is wrong because stars are still in the sky, but sunlight makes the sky too bright to see most of them.
- Drawing the Sun and Moon as the same kind of object is wrong because the Sun is a star and the Moon is a rocky object that orbits Earth.
- Believing day and night happen because the Sun turns on and off is wrong because day and night happen as Earth spins.
Practice Questions
- 1 You see the Sun in the sky for 8 hours before sunset. If sunset happens at 6:00 p.m., what time did you first start counting the Sun hours?
- 2 A student draws 1 Sun, 1 Moon, and 12 stars. How many sky objects did the student draw in all?
- 3 Explain why we can usually see more stars at night than during the day.