Direction: Read the following questions carefully. Write the letter of the correct answer in your worksheet.
1. Which illustration shows the heat transfer in conduction? A B с U -2. Which of the following heat transfers is done in convection? A. Heat transfer through from substance to another by direct contact, B. When liquid or gas is heated, the molecules of the heated part move faster and away from each other. C. Heat can be transmitted across empty space. D. Heat was received by the sun. 3. In what way heat gives bad effects to us? A. It can cook our food. B. It can dry our clothes C. It can burn our skin. D. It can be used for medical purposes.​