⚡ Energy Exploration

Grade 2 | Collingwood Spanish Bilingual

A multi-week inquiry into the nature of energy, light, and sound, focusing on transformations and real-world applications within a bilingual context.

Unit Overview

Big Idea: Energy is the ability to cause change or do work. It can exist in many forms and move from place to place through light, sound, and electricity.

Date: March 2025
Duration: 4-5 Weeks
Curriculum: Alberta Program of Studies (Science)
Specializations: Hands-on Inquiry, Constructivist Learning

Essential Questions

How does energy move and change forms in the world around us?
In what ways do light and sound travel through different materials?
How can we conserve energy to protect our environment and resources?

Learning Pathway (9-Lesson Sequence)

Phase 1: Foundations of Motion

Lesson 1: Intro to Energy: Distinguishing between kinetic (motion) and potential (stored) energy through balloon-pop experiments.

Phase 2: The Physics of Light

Lesson 2: Light Sources: Classifying emitters vs. reflectors and natural vs. artificial sources (e.g., bioluminescence vs. glow sticks).
Lesson 3: How Light Travels: Exploring straight-line rays, dispersion (prisms), and image inversion with pinhole cameras.
Lesson 4: Blocking, Bouncing, & Bending: Hands-on stations for shadows (blocking), mirrors (reflection), and water-bending (refraction).

Phase 3: The Mechanics of Sound

Lesson 5: Sound & Vibration: Understanding the need for a medium and identifying pitch, volume, and duration.
Lesson 6: Echolocation: Simulating animal navigation (bats/dolphins) using sound reflection and echoes.

Phase 4: Synthesis & Stewardship

Lesson 7: Comparing Light & Sound: Sorting properties like speed, medium requirements, and sensing organs.
Lesson 8: Energy Resources: Building chemical batteries (lemon circuits) to observe energy conversion.
Lesson 9: Conservation: Designing posters and action plans to reduce resource depletion and pollution.

Summative Projects & Experiments

🏗️ The Mirror Maze

Students design a maze using mirrors to redirect a light beam to a specific target, demonstrating mastery of the law of reflection and angles.

🔍 Magnifying Exploration

Using lenses and water refraction, students investigate how light can be concentrated to perform "work" or change the appearance of objects.

Unit Glossary

Kinetic Energy: Energy of motion.
Potential Energy: Stored/Waiting energy.
Refraction: The bending of light through clear materials.
Vibration: A fast back-and-forth wiggle that makes sound.

Bioluminescence: Light made by living things.
Echolocation: "Seeing" with sound echoes.
Medium: The material (air, water) sound travels through.
Conservation: Saving energy by using less.