Sun Power and Patterns

Overview

Students investigate the Sun as a star and the main source of light and warmth for Earth. They build on prior knowledge of Earth and space by sorting observations, using a simple model, and explaining how sunlight helps living things meet their needs.

Learning intentions

• WALT explain that the Sun is a star and Earth is a planet.
• WALT identify the Sun as the main source of light and warmth for Earth.
• WALT describe how the Sun helps plants and animals meet their needs.
• WALT use observations and evidence to communicate scientific ideas.

Success criteria

• I can explain that the Sun is a star and Earth is a planet.
• I can describe at least three features or facts about the Sun.
• I can explain why sunlight is important to plants, animals and people.
• I can record an observation and use it to support an idea.

Curriculum links

• Earth and Space — The Earth and Sun: the Sun is a star and Earth is a planet.
• Earth and Space — The Solar System: the Solar System includes the Sun, planets, moons, asteroids and comets.
• Biological Science — How organisms meet their needs: sunlight is connected with plants making sugar through photosynthesis.
• Science capabilities: observing, interpreting representations, communicating explanations, and using evidence.

Lesson structure (60 minutes)

1. 0–7 min · Hook and prior knowledge. Open with the hook and mystery image showing a bright, enlarged image of the Sun and ask, “What would change on Earth if the Sun disappeared?” Students make a prediction, then share what they already know; record ideas and questions on the board.

2. 7–17 min · Direct teaching: Sun facts. Use the Sun facts slides to teach that the Sun is a star, Earth is a planet, the Sun is much closer to Earth than other stars, and the Sun provides light and warmth. Explain that the Sun is at the centre of our Solar System and that planets, including Earth, move around it. Emphasise that diagrams are models and are not drawn to scale. Students complete the “fact, question, surprising idea” boxes on the Sun investigation sheet.

Suggested child-friendly facts:

• The Sun is a star made of very hot gases.
• It is the closest star to Earth.
• Its light takes about eight minutes to reach Earth.
• The Sun is much larger than Earth.
• The Sun’s energy helps plants make food, which supports food chains.
• The Sun can damage eyes and skin, so we never look directly at it.

3. 17–27 min · Model and discussion: light and warmth. Demonstrate with a torch and two paper surfaces, one dark and one light, or use the visual model in the light and warmth model. Explain that the torch represents sunlight and that the model helps us think about light and warmth, but is not the Sun itself. Students predict which surface may warm more and explain why. Do not ask students to look at the real Sun or use unsafe heat sources.

4. 27–43 min · Independent investigation: sunlight supports life. Present the scenario on the living things challenge slide: “A plant is kept in a dark cupboard for several days. What might happen, and why?” Model a simple explanation: plants need sunlight to make sugar, called photosynthesis; this sugar helps them grow. Students complete the evidence and explanation tasks by matching sunlight to plant growth, warmth, seeing and food chains, then write or draw one explanation. For a class of one, confer regularly and ask the student to think aloud rather than waiting for peer discussion.

5. 43–53 min · Build an evidence-based explanation. Use the explanation builder with the frame: “The Sun is important because ____. I know this because ____.” Students choose one focus—plants, animals, people or Earth—and complete the frame on the worksheet. Prompt for evidence from the demonstration, facts or the plant scenario. Challenge the student to connect sunlight, plants making sugar and animals obtaining energy through food.

6. 53–60 min · Plenary and exit check. Return to the opening prediction using the final reflection slides. Students explain whether their thinking changed and complete the final three questions on the exit check: “What is the Sun?”, “Name one way the Sun helps life”, and “Why must we protect our eyes from direct sunlight?” Invite the student to read one answer aloud and identify one question for future learning.

Resources

• the Sun science slide deck
• the Sun investigation sheet
• Torch
• Two sheets of paper or card in contrasting colours
• Pencil, coloured pencils and clipboard
• Optional classroom plant or photograph of a healthy and unhealthy plant
• Board or large sheet of paper
• Timer

Assessment

• Listen for accurate use of star, planet, light, warmth and photosynthesis during questioning and discussion.
• Check the worksheet for correct identification of the Sun as a star, Earth as a planet, and a clear connection between sunlight and living things.
• Use the exit check to identify whether the student can state a fact, explain an importance of sunlight, and describe a safety action.

Differentiation

• Provide the sentence frames “The Sun is…”, “Sunlight helps…”, and “My evidence is…”; allow drawing, oral recording or dictation instead of extended writing.
• Use pictures and gestures for star, planet, light, warmth, plant and food chain, and revisit each word during the investigation.
• Reduce the worksheet to the essential matching and one explanation task if writing or attention is difficult.
• Extend thinking by asking, “What would happen to plants, then animals, if there were no sunlight?” Accept a labelled diagram or spoken explanation as evidence.