Science (EVS K-5) · Class 2

Active learning ideas

Plants for Shelter and Oxygen

Hands-on activities let young learners see, touch, and move while they discover how plants shelter animals and fill the air with oxygen. When children feel bark, count leaves, or watch bubbles rise, abstract facts become concrete truths they remember longer than any textbook page.

• CBSE Learning Outcomes
• CBSE: Uses of Plants - Class 2

• 25–40 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Outdoor Investigation Session
• 30 min · Small Groups

Garden Walk: Shelter Hunt

Lead students to the school garden or nearby plants. Instruct them to spot and sketch animals using plants for shelter, such as nests or burrows. Groups share findings in a class chart to discuss patterns.

Predict what would happen to the air we breathe if there were no trees.

Facilitation Tip

During the Garden Walk: Shelter Hunt, give each pair a checklist with pictures of insects and birds so they match animals to the exact hiding spots they find.

What to look for

Show students pictures of different animals (e.g., a bird, a squirrel, an insect). Ask them to point to a plant in the classroom or a picture of a plant and explain how that plant could provide shelter for the animal shown.

• Remember
• Understand
• Analyze
• Social Awareness
• Self-Awareness
• Decision-Making

Activity 02

• Outdoor Investigation Session
• 35 min · Pairs

Model Building: Tree Homes

Provide craft sticks, leaves, and toy animals. Students construct a model tree with shelters for different creatures. They label parts and present how animals benefit.

Explain how animals use plants for things other than food, like shelter.

Facilitation Tip

When guiding Model Building: Tree Homes, remind students to name each part aloud so the language of branches, trunks, and leaves stays linked to real plants.

What to look for

Ask students: 'Imagine you are a small bird looking for a home. What features of a plant would make it a good shelter for you?' Record their answers on the board, linking them to specific plant parts like branches or leaves.

• Remember
• Understand
• Analyze
• Social Awareness
• Self-Awareness
• Decision-Making

Activity 03

• Outdoor Investigation Session
• 25 min · Whole Class

Bubble Demo: Oxygen Makers

Use a jar with water plants like Hydrilla under sunlight. Students watch and count oxygen bubbles rising. Discuss how leaves make air we breathe in groups.

Justify the importance of planting more trees for our environment.

Facilitation Tip

In the Bubble Demo: Oxygen Makers, let children gently tap the plant jar to feel the cool water move and hear the soft pop of bubbles, creating multisensory proof of oxygen.

What to look for

Give each student a small piece of paper. Ask them to draw one way plants give shelter to animals and write one sentence about why we need plants to breathe.

• Remember
• Understand
• Analyze
• Social Awareness
• Self-Awareness
• Decision-Making

Activity 04

• Outdoor Investigation Session
• 40 min · Individual

Planting Drive: Grow a Tree

Distribute sapling pots and soil. Students plant seeds, water them, and predict future shelter and oxygen benefits. Track growth over weeks in journals.

Predict what would happen to the air we breathe if there were no trees.

Facilitation Tip

At the Planting Drive: Grow a Tree, assign roles such as digger, planter, and water-carrier so every child contributes to the shared success of a living tree.

What to look for

Show students pictures of different animals (e.g., a bird, a squirrel, an insect). Ask them to point to a plant in the classroom or a picture of a plant and explain how that plant could provide shelter for the animal shown.

• Remember
• Understand
• Analyze
• Social Awareness
• Self-Awareness
• Decision-Making

A few notes on teaching this unit

Start with what children already see—sparrows in the school mango tree or cool shade under a neem bush—then guide them to notice how the same plant also feeds insects and cleans the air. Avoid overwhelming them with big words; instead, use simple phrases like ‘plant kitchen’ for photosynthesis and ‘animal flat’ for a nest. Research shows that when students physically act out roles—like a squirrel looking for a home—their understanding of shelter deepens far more than when they only listen to a lecture.

By the end of the week, every child should point to a plant part and name its shelter or oxygen role, sketch a simple tree home with two animal residents, and breathe in deeply with the confidence that trees are breathing out for them at that very moment.

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Watch Out for These Misconceptions

• During Bubble Demo: Oxygen Makers, watch for children saying plants use up oxygen all the time. Correction: While the bubbles rise, ask them to predict what will happen when the jar is covered overnight. Show the next morning’s jar with fewer bubbles and guide them to conclude that plants release oxygen by day and carbon dioxide by night.

  During Model Building: Tree Homes, watch for children believing only big trees shelter animals. Correction: After they finish their models, ask each pair to add one small bush or shrub to their tree home and explain how a tiny plant can hide a tiny insect.

• During Garden Walk: Shelter Hunt, watch for children thinking animals need plants only for food. Correction: During the walk, stop at each hiding spot and ask students to act like the animal finding safety, not food.

  During Planting Drive: Grow a Tree, watch for children thinking animals need plants only for food. Correction: Before digging, ask students to imagine the life of a sparrow chick that needs both a mango leaf umbrella for shade and caterpillars for food, linking shelter and food in one context.

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Methods used in this brief

• Outdoor Investigation Session