Science (EVS K-5) · Class 3 · Things We Make and Do · Term 3

Working with Clay

Discover the fun of making pots, diyas, and toys from clay, just like a potter.

TL;DR:Get ready to explore the amazing properties of clay, a special kind of earth that can be transformed from soft mud into useful pots and beautiful toys!

• CBSE Learning Outcomes
• NCERT EVS Class 3: Theme - Things We Make and Do

About This Topic

This topic, 'Working with Clay', offers a wonderful hands-on opportunity for Class 3 students to explore the properties of materials, a core concept in the primary science curriculum. Aligned with the NCF's emphasis on learning by doing, this lesson moves beyond textbook knowledge into tactile, experiential learning. Students will engage with the science of how a natural material like clay (chikni mitti) changes its state and properties from wet and malleable, to dry and brittle, and finally to hard and strong after being fired. This process directly demonstrates irreversible changes.

In the Indian context, this topic holds immense cultural significance. Pottery is a traditional craft practised across the country, and students are likely familiar with clay items like matkas (water pots), diyas (lamps for festivals like Diwali), kullhads (tea cups), and decorative items. By connecting the scientific concepts to these everyday objects, the lesson becomes more relatable and meaningful. It also provides a chance to discuss the role of artisans like potters (kumhars) in our communities, integrating elements of social studies and art into the science classroom.

Key Questions

1. Explain the steps to make a simple pot from clay.
2. Compare a wet clay pot with a baked clay pot.
3. Identify two things in your house that are made of clay.

Learning Objectives

• Describe the properties of clay, such as being soft when wet and hard when dry.
• Follow sequential instructions to mould a simple object from clay.
• Differentiate between an air-dried and a baked clay object based on strength.
• Identify at least two common household items made from clay.
• Explain that heat can cause permanent changes in some materials like clay.

Key Vocabulary

Clay	A type of natural soil that is sticky when wet and can be shaped and hardened by baking. In Hindi, it's often called 'chikni mitti'.
Potter	A person who makes pots, diyas, and other objects from clay. In Hindi, a potter is called a 'kumhar'.
Mould	To shape a soft material like clay into a desired form.
Kiln	A very hot oven, like a furnace, used for baking clay objects to make them hard and strong. In Hindi, it's called a 'bhatti'.
Terracotta	A type of reddish-brown pottery made from baked clay.

Watch Out for These Misconceptions

Common Misconception

Baking is just a faster way to dry the clay.

What to Teach Instead

Baking in a hot kiln does much more than just dry the clay. The high heat causes a permanent chemical change that fuses the clay particles together, making it very hard, strong, and waterproof. Air-dried clay will get soft again if you put it in water, but baked clay will not.

Common Misconception

You can use any mud from the garden to make pots.

What to Teach Instead

Only a special type of soil called clay is good for making pots. Clay has very tiny, fine particles that get sticky when wet, which allows it to be shaped and to hold that shape as it dries. Regular garden soil has sand and other bits that prevent it from holding a shape well.

Common Misconception

Clay objects are always brown.

What to Teach Instead

While many clay items are reddish-brown (terracotta), clay can come in different natural colours like grey, white, or yellow. Also, potters can paint baked clay objects with bright colours to make them decorative.

Active Learning Ideas

Stations Rotation

Make Your Own Diya

Give each student a ball of potter's clay. Guide them step-by-step to flatten the ball and pinch the edges to form a simple diya or a small bowl.

30 min·Individual

Stations Rotation

Clay Strength Test

Students make two identical small shapes. One is left to air-dry for a day or two, while the teacher presents a pre-baked version of the same shape. Students then gently compare the strength and sound of both.

20 min·Small Groups

Stations Rotation

Texture Imprints

Provide students with flat pieces of clay and various natural objects like leaves, twigs, and pebbles. Students press these objects into the clay to see the imprints and textures they create.

15 min·Pairs

Real-World Connections

• Using clay 'matkas' or 'ghadas' to keep drinking water cool during summer in many Indian homes.
• Lighting clay 'diyas' during festivals like Diwali for decoration and worship.
• Drinking tea from disposable, eco-friendly clay cups called 'kullhads' at railway stations and tea stalls.
• Building houses using bricks, which are rectangular blocks of baked clay.
• Cooking special dishes in clay pots ('handis') which gives the food a unique, earthy flavour.

Assessment Ideas

Quick Check

Observe students during the clay moulding activity. Use a simple checklist to note if they can knead the clay, shape it, and describe its feel.

Quick Check

Give students a picture-based worksheet where they must circle all the objects made of clay from a group of assorted items.

Quick Check

After the activity, ask students to hold up their creation and share one thing they learned about clay and one question they still have.

Frequently Asked Questions

Why does my clay pot crack when it dries?

Clay shrinks as it dries. If it dries too quickly, the outside part shrinks faster than the inside, which causes cracks. Potters dry their creations slowly to prevent this.

What is the big spinning wheel that potters use?

That is called a potter's wheel. It helps the potter shape the clay into perfectly round and even shapes like pots, bowls, and vases much more easily and quickly.

Can we eat or drink from the pots we make in class?

It is best not to. For a clay pot to be safe for food, it needs to be baked at a very high temperature in a special oven called a kiln and sometimes coated with a special glaze. The items we make and air-dry in class are just for playing or decoration.