Science (EVS K-5) · Class 5

Active learning ideas

Renewable Energy: Solar and Wind

Active learning makes abstract energy concepts concrete for students. When children build models and measure outputs, they see theory in action, which builds lasting understanding of how solar panels and wind turbines work in India’s climate. Hands-on activities turn textbook ideas about clean energy into experiences they can test, observe, and explain themselves.

• CBSE Learning Outcomes
• NCERT Class 5 EVS, Chapter 6: Every Drop Counts, Describes traditional methods of water conservation like stepwells.
• CBSE Class 5 EVS Syllabus, Theme: Water, Understanding sources of water and methods of conservation.
• NCERT Learning Outcomes at Elementary Stage: EVS-508, Describes the need for water and the importance of conserving it.
• NEP 2020: Curriculum Content, Integration of traditional Indian knowledge systems.

• 30–50 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Problem-Based Learning
• 45 min · Small Groups

Hands-on: Simple Solar Oven

Provide cardboard boxes, black paper, plastic wrap, and thermometers. Students line the box with black paper, cover with plastic, and place food items inside under sunlight. They measure temperature rise every 10 minutes and record data on a chart.

Design a transport system that does not rely on fossil fuels.

Facilitation Tip

During the Simple Solar Oven activity, circulate with a multimeter to show students how even shaded light produces voltage, turning a common misconception into measurable evidence.

What to look for

Present students with two scenarios: one describing a village in a very sunny, open plain, and another describing a coastal town with consistent strong winds. Ask them to write which renewable energy source (solar or wind) would be more suitable for each and why.

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

Activity 02

• Problem-Based Learning
• 35 min · Pairs

Experiment: Pinwheel Windmill

Use straws, pins, and paper to build pinwheels attached to small fans or blowers. Students test at varying wind speeds by blowing or using a fan, measure spin speed with a stopwatch, and note energy conversion to motion.

Compare the advantages and disadvantages of solar energy versus wind energy.

Facilitation Tip

For the Pinwheel Windmill experiment, ask students to change blade angles and count rotations per minute, linking wind speed directly to power output in a way they can graph and compare.

What to look for

Pose the question: 'Imagine you are advising the government on where to build new solar farms and wind farms in India. Which states would you choose and why? What are the pros and cons of your choices?' Facilitate a class discussion where students share their reasoning.

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

Activity 03

• Problem-Based Learning
• 50 min · Small Groups

Design Challenge: Fossil-Free Transport

In groups, sketch and build models of transport like solar boats or wind carts using recyclables, motors, and small panels or fans. Present designs, explaining energy source and fossil fuel avoidance.

Justify the importance of investing in renewable energy technologies.

Facilitation Tip

In the Design Challenge, provide only recycled materials and a fixed budget to make students think about real-world constraints like cost and availability before they build.

What to look for

On a small slip of paper, ask students to list one advantage of solar energy, one advantage of wind energy, and one reason why switching from fossil fuels to renewables is important for India.

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

Activity 04

• Problem-Based Learning
• 30 min · Whole Class

Compare Charts: Solar vs Wind

Distribute worksheets listing pros and cons. Students research via class discussion or simple demos, fill charts, and vote on best for local use like a school rooftop.

Design a transport system that does not rely on fossil fuels.

Facilitation Tip

While comparing Solar vs Wind charts, ask each group to present one state in India and justify their choice of energy source using the data they collect.

What to look for

Present students with two scenarios: one describing a village in a very sunny, open plain, and another describing a coastal town with consistent strong winds. Ask them to write which renewable energy source (solar or wind) would be more suitable for each and why.

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

A few notes on teaching this unit

Teachers often start with familiar examples like sunlight on a roof or wind in a field to anchor new ideas. Avoid long lectures; instead, use short demonstrations followed by guided inquiry. Research shows students grasp energy concepts better when they manipulate variables and measure results themselves. Emphasise local contexts—Rajasthan’s sun or Tamil Nadu’s coasts—to make learning relevant and memorable.

By the end of these activities, students should explain how sunlight and wind become power, compare outputs under different conditions, and justify why solar or wind fits a given location in India. They will also discuss costs, safety, and environmental impacts using data from their own experiments and designs.

---

Watch Out for These Misconceptions

• During the Simple Solar Oven activity, watch for students who assume solar energy only works in bright sunlight. Ask them to cover one panel with tracing paper and measure the temperature change to show how diffuse light still generates heat.

  During the Simple Solar Oven activity, students will test how much heat is produced under direct sunlight, thin cloud cover, and shade. Ask them to graph the results and explain why the oven still works even when the sun is not fully visible.

• During the Pinwheel Windmill experiment, students may think all wind turbines are dangerous to birds. Provide pictures of modern turbines with slow-moving blades and ask them to compare these to older models they find online.

  During the Pinwheel Windmill experiment, students will research bird-friendly turbine designs and modify their own models to reduce blade speed. Ask them to present their findings on how these changes protect wildlife.

• During the Design Challenge, students might believe renewables are always more expensive than fossil fuels. Give them a simple cost sheet for solar panels versus coal and ask them to calculate long-term savings over 10 years.

  During the Design Challenge, students will role-play as energy planners and compare upfront costs and long-term savings of solar, wind, and fossil fuels. Ask them to present their cost-benefit analysis to the class.

---

Methods used in this brief

• Problem-Based Learning