Match the columns. 1. Air a. Moving air. 2. Wind b. Air takes up space. 3. Balloon c. Fast and strong wind. 4. Storm d. All around us.

1-d Air is everywhere, and we cannot see it but can feel it. It is a mixture of gas that is present all around us in the atmosphere. 2-a The wind is moving air. Winds help in drying wet clothes faster. Changes in the temperature of air, land, and water cause wind. The most powerful wind happens during strom. 3-b If we blow air into a balloon, then it becomes bigger. Air fills up the space inside the balloon. 4-c Sometimes the wind blows fast and strong. Fast and strong wind can cause a storm. 1. Air d. All around us. 2. Wind a. Moving air. 3. Balloon b. Air takes up space. 4. Storm c. Fast and strong wind.

Air is everywhere. It is a mixture of gases. It has many useful roles:- We need air to breathe. Moving air is called wind. It can dry clothes. Air is needed for lighting a fire. Air can be filled into everything. Air helps boats to sails.