Light ray models and shadows are the focus of this Grade 4 Science resource, giving students a clear way to describe how light travels and predict what happens when rays meet objects and surfaces.

Students use ray models to represent light travelling in straight lines, then apply those models to predict areas of full illumination and darkness. The resource also introduces angle relationships for determining the direction of reflected light from smooth surfaces, connecting diagrams and reasoning to observable light behaviour.

What students practise

• Use ray models to describe straight-line light travel.
• Predict illuminated and dark areas using intersecting and extended rays.
• Explain how angle relationships determine reflected directions from smooth surfaces.
• Apply information from a reading passage to answer questions about light and shadows.

Question formats included

The worksheet combines multiple-choice questions, true-or-false statements, short-answer responses, a reading passage, matching, a cloze passage, an essay response, and a “Did You Know?” feature. This mix gives students opportunities to identify ideas, apply ray models, interpret information, and explain their thinking in writing.

What you receive

• Student Notes & Lesson Summary supplement for reinforcing the key ideas.
• Separate Teacher Guide PDF with learning objectives, teaching tips, discussion questions, and common mistakes.
• Student worksheet focused on ray models, illumination, darkness, and reflection.

Classroom use

Use this Grade 4 light science worksheet as guided practice after instruction, independent work during a light and sound lesson, or a review activity before moving to related concepts. The student notes provide a concise reference, while the Teacher Guide supports discussion and helps teachers anticipate common misconceptions about light rays and reflection.

By combining light ray diagrams, straight-line light, illumination and darkness, and reflection from smooth surfaces, this resource gives students repeated opportunities to connect scientific representations with explanations and predictions. It is a practical addition to an elementary science unit on light and sound when students need focused practice with ray models.