JHS1 Science · Term 2 Week 8: Energy

Lesson notes

Learning Objectives

Indicator: B7.4.1.3.1 - Demonstrate how light travels in a straight line.

By the end of the lesson, learners can:

Perform a simple experiment using cardboard sheets and a torch or candle to demonstrate that light travels in a straight line.
Explain why shadows form, using the idea that light cannot bend around opaque objects.
Predict and test whether light can pass through holes that are not aligned in a straight line.
Draw a labelled diagram showing light travelling in a straight line from a source to an object.
Use the straight-line property of light to explain everyday phenomena such as sunlight entering through a small window or gaps in a roof.

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Curriculum details

Strand: Forces and Energy (Strand 4)
Sub-strand: Energy (4.1)
Content standard: B7.4.1.3 - Demonstrate understanding of characteristics of light, such as travelling in a straight line, reflection, refraction and dispersion
Indicator: B7.4.1.3.1 - Demonstrate how light travels in a straight line.
Suggested placement: Term 2, Week 8 (Week 20 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Science, Common Core Programme (JHS1-JHS3), 2023, p. 29
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

1. Perform experiments to show that light travels in a straight line and can be reflected and refracted and produce reports, posters or diagrams.
2. Perform an experiment to show dispersion of light into colours.