Geography · 5th Class · Planet Earth in Space · Summer Term

Our Star and its Satellite

Investigate the Sun, the star at the centre of our solar system, and the Moon, Earth's only natural satellite.

TL;DR:Let's take our pupils on a journey into space without leaving the classroom! This topic explores our closest celestial neighbour, the Moon, and its fascinating dance with the Earth and Sun.

• NCCA Curriculum Specifications
• SESE Geography: Natural Environments - Planet Earth in space

About This Topic

This topic, 'Our Star and its Satellite', aligns directly with the 'Planet Earth and Space' strand of the SESE Science Curriculum for fifth class. It provides a fantastic opportunity for pupils to develop their skills of observation, prediction, and investigation by exploring the predictable cycle of the Moon's phases. The lessons will move from simple observation of the night sky to a more complex understanding of the spatial relationships between the Sun, Earth, and Moon. By using models and diagrams, pupils will grasp abstract concepts like orbits and the reflection of light, which cause the apparent changes in the Moon's shape.

Furthermore, this topic encourages pupils to work scientifically by asking questions, gathering evidence through observation (like a Moon diary), and explaining phenomena. It connects to the Geography curriculum by fostering an understanding of Earth's place in the solar system. The exploration of eclipses provides a dramatic and memorable context for applying their knowledge of celestial mechanics. This unit is foundational for later studies in science and helps develop a sense of wonder about the natural world and our place within the cosmos.

Key Questions

1. Explain why the Sun is essential for life on Earth.
2. Compare the Sun and the Moon in terms of size, composition, and light.
3. Identify key features on the Moon's surface, such as craters.

Learning Objectives

• Identify and name the eight main phases of the Moon in the correct sequence.
• Explain that the Moon's phases are caused by its position relative to the Earth and Sun.
• Model the relative movements of the Sun, Earth, and Moon.
• Distinguish between the causes and appearance of a solar and a lunar eclipse.
• Record observations of the Moon over a period of time.

Key Vocabulary

Satellite	An object that orbits, or moves around, a larger object in space. The Moon is a natural satellite of Earth.
Orbit	The curved path an object in space takes around another one, like the Moon's path around the Earth.
Phase	The different shapes the Moon appears to have in the sky, caused by the changing angles at which we view its sunlit surface.
Eclipse	An event where one object in space blocks the light from another. A solar eclipse is when the Moon blocks the Sun's light.
Waxing	Describes the phases when the lit portion of the Moon is growing larger each night, from New Moon to Full Moon.
Waning	Describes the phases when the lit portion of the Moon is getting smaller each night, from Full Moon to New Moon.

Watch Out for These Misconceptions

Common Misconception

The phases of the Moon are caused by the Earth's shadow covering it.

What to Teach Instead

The phases we see depend on how much of the sunlit side of the Moon is facing us as it orbits the Earth. The Earth's shadow only causes a lunar eclipse, which is a rare event.

Common Misconception

The Moon creates its own light, just like the Sun.

What to Teach Instead

The Moon does not produce any light. It appears bright because its surface reflects the light from the Sun, much like a mirror.

Common Misconception

A 'New Moon' means there is no moon in the sky.

What to Teach Instead

The Moon is still there during a New Moon, but it's between the Earth and the Sun. The side facing us is not lit by the Sun, so we can't see it.

Active Learning Ideas

Experiential Learning

Oreo Moon Phases

Pupils twist open Oreo biscuits and scrape the cream filling to model the different phases of the Moon. They then arrange the biscuits in the correct order on a paper plate to represent the lunar cycle.

30 min·Pairs

Experiential Learning

Human Orrery: Sun, Earth, Moon

In a large space like the school hall, one pupil acts as the Sun, another as the Earth, and a third as the Moon. The 'Earth' walks in a large circle around the 'Sun' while the 'Moon' walks in a smaller circle around the 'Earth', demonstrating orbits and rotation.

20 min·Small Groups

Experiential Learning

Eclipse in a Box

Pupils use a torch (the Sun), a large ball (the Earth), and a small ball (the Moon) in a darkened room or a large cardboard box. By moving the small ball around the large one, they can model how shadows cause both solar and lunar eclipses.

25 min·Small Groups

Real-World Connections

• Understanding tides: The Moon's gravitational pull is the primary cause of the ocean's high and low tides, which affects fishing, shipping, and coastal life.
• Historical navigation: For centuries, sailors used the Moon and stars to navigate across vast oceans before the invention of modern GPS.
• Cultural calendars and festivals: Many calendars, including the traditional Irish calendar, were based on the cycles of the Moon, and festivals like Easter are still calculated using it.
• Modern space exploration: Understanding the Moon's orbit is crucial for planning missions to the Moon and beyond, as well as for positioning artificial satellites for communications and weather forecasting.
• Nature and wildlife: Many animals' behaviours, such as migration and reproduction, are linked to the lunar cycle.

Assessment Ideas

Exit Ticket

Use 'exit tickets' where pupils draw and label one phase of the Moon and write one sentence explaining why it looks that way.

Quick Check

Pupils complete a labelled diagram of the full lunar cycle, showing the positions of the Sun, Earth, and Moon for each major phase.

Quick Check

Pupils use a 'traffic light' system (red, orange, green) to indicate their confidence in explaining the difference between a solar and lunar eclipse.

Frequently Asked Questions

Why can we sometimes see the Moon during the daytime?

The Moon is always in the sky for about 12 hours out of every 24. Sometimes those hours overlap with daylight. Because it's so close to Earth, its reflected light is often bright enough to be seen even when the Sun is out.

What is a 'blue moon'?

A 'blue moon' isn't actually blue. It's the name given to the second full moon that occurs in the same calendar month, which happens only every two to three years.

How long does it take the Moon to go around the Earth?

It takes the Moon about 27.3 days to complete one orbit around the Earth. However, a full lunar cycle, from one New Moon to the next, takes about 29.5 days.