Science · Year 1 · Sky and Landscape: Earthly Changes · Term 2

Observing the Sun's Apparent Path

Students will observe and record the apparent movement of the sun across the sky throughout the day, noting changes in shadow length and direction.

• ACARA Content Descriptions
• AC9S1U02

About This Topic

Observing the sun's apparent path introduces Year 1 students to daily sky changes. They record the sun's position from morning through afternoon, tracking shadow length and direction with simple tools like sticks or playground equipment. Shadows start long in the morning, shorten near midday, lengthen again later, and point in different directions. This hands-on work answers key questions: why the sun seems to move, how positions differ morning to afternoon, and where it will appear at set times.

Aligned with AC9S1U02 in the Australian Curriculum, this topic fits the Sky and Landscape unit on Earthly Changes. Students connect observations to their routines, such as recess shadows or home sunrise views. Recording data in tables or drawings develops skills in prediction, measurement, and pattern recognition, laying groundwork for astronomy concepts.

Active learning benefits this topic greatly since phenomena occur outdoors in real time. Students mark shadows with chalk, compare group findings, and test predictions immediately. These experiences make patterns visible and memorable, sparking curiosity through shared discovery and peer talk.

Key Questions

1. Explain why the sun appears to move across the sky.
2. Compare the sun's position in the morning to its position in the afternoon.
3. Predict where the sun will be at different times of day based on observations.

Learning Objectives

• Compare the sun's position in the sky at different times of the day.
• Record observations of shadow length and direction throughout a school day.
• Explain that the apparent movement of the sun across the sky causes changes in shadow position and length.
• Predict the approximate position and length of a shadow at a specific time of day based on prior observations.

Before You Start

Identifying Basic Shapes

Why: Students need to be able to identify and draw basic shapes to record the length and direction of shadows.

Observing and Describing

Why: Students must be able to carefully observe the sun's position and the characteristics of shadows and describe what they see.

Key Vocabulary

apparent movement	How something looks like it is moving from our point of view, even if it is not actually moving in that way.
shadow	A dark area formed when an object blocks light from a source, like the sun.
midday	The middle part of the day, around noon, when the sun is typically highest in the sky.
direction	The path along which someone or something moves or faces, for example, east or west.

Watch Out for These Misconceptions

Common Misconception

The sun travels around the Earth each day.

What to Teach Instead

Observations show shadows change predictably from a fixed point, suggesting Earth turns. Group discussions of shared data help students see patterns without assuming sun motion. Hands-on prediction tests refine ideas through evidence.

Common Misconception

Shadows always point the same direction.

What to Teach Instead

Tracking over a day reveals direction shifts with sun position. Small group chalk marking visualizes changes clearly. Peer comparisons during rotations correct fixed ideas with collective evidence.

Common Misconception

Shadows are shortest only because the sun is brightest at midday.

What to Teach Instead

Length ties to sun angle, not brightness alone; cloudy day trials confirm this. Whole class observations on varied days build accurate models via direct comparison.

Active Learning Ideas

Outdoor Tracking: Stick Shadows

Place sticks in the ground at set times: morning, midday, afternoon. Students measure shadow lengths with rulers and note directions on north-south lines. Compare changes by drawing outlines with chalk around shadows.

45 min·Small Groups

Whole Class: Human Sundial

Students stand in a circle facing north; one holds a plumb line. Mark positions and shadows every 30 minutes on paper or ground. Discuss patterns as a group and predict next shadow.

40 min·Whole Class

Pairs: Prediction Charts

Pairs draw sun paths and shadows for times like 9am, noon, 3pm based on prior observations. Test predictions next day outdoors, then adjust charts. Share revisions in class.

30 min·Pairs

Individual: Home Log

Students record one shadow daily at home using a toy or hand. Bring logs to school for class timeline. Add drawings of sun position relative to house.

20 min·Individual

Real-World Connections

• Architects and city planners use knowledge of the sun's path to design buildings and public spaces that maximize natural light and minimize heat gain or loss.
• Farmers use the sun's position and shadow patterns to understand how much sunlight different parts of their crops will receive throughout the day, influencing planting decisions.

Assessment Ideas

Quick Check

Ask students to point to where the sun is in the sky at the start of the lesson and then again before recess. Then, ask them to draw a quick sketch of their shadow's direction at each time.

Discussion Prompt

At the end of the day, ask: 'How did your shadow change from the morning until now? Why do you think it changed?' Listen for students referencing the sun's apparent movement and changing position.

Exit Ticket

Provide students with a simple drawing of a stick figure. Ask them to draw the shadow of the stick figure in the morning (pointing left) and in the afternoon (pointing right), and label which is which.

Frequently Asked Questions

How do I safely observe the sun's path with Year 1 students?

Never look directly at the sun; focus on shadows instead. Use playground time for observations, with hats and sunscreen. Position students facing shadows, not sun, and limit to short sessions. This keeps safety first while capturing real data for engaging lessons.

What simple tools work best for sun path activities?

Sticks, chalk, rulers, and paper suffice for shadow tracking. Mark north with a compass or school landmark. Student drawings or class charts record positions. These low-cost items make setup quick and accessible for repeated use across the unit.

How can active learning help students grasp the sun's apparent movement?

Active approaches like outdoor shadow hunts let students measure and predict changes firsthand. Small groups mark and compare shadows, discussing why they shift. This builds pattern recognition through talk and motion, turning passive facts into personal discoveries that stick long-term.

How does this topic connect to other Year 1 science areas?

Sun path observations link to daily and seasonal changes in AC9S1U02, extending to shadows in design tech or weather patterns in earth science. It fosters data skills for maths. Integrate with literacy through shadow journals, creating cross-curriculum depth.