Activity 2: Heat Up Objective: Describe heat energy. What you need: paper and ballpen What to do: Solve the puzzle. Use the clues below. Write your answers in the grid. 1 4 2 3 5 6 7 8 9 Down contact by the 1 - In conduction, heat can be transferred through heat source and the body receiving the heat. 2 - Heat transfer by the movement of heated parts of liquid or gas. 4 - Heat is a form of 5 - Heat transfer through space 7 - Heat transfer from a hot object to be a object. Across 2 - Heat transfer through direct contact 3 - Materials that transfer heat easily 6 - A form of energy that keeps us warm 8 - Heat can travel through in conduction 9- The greatest source of heat
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1.Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. ... These vibrating molecules collide with their neighboring molecules, making them also vibrate faster. As these molecules collide, thermal energy is transferred via conduction to the rest of the pan.
2.Convection is the movement of heat by a fluid such as water or air. The fluid (liquid or gas) moves from one location to another, transferring heat along with it. This movement of a mass of heated water or air is called a current.
4.energy
Heat is energy transferred between substances or systems due to a temperature difference between them, according to Georgia State University. As a form of energy, heat is conserved — it cannot be created or destroyed.
5.Radiation is the transfer of heat energy through space by electromagnetic radiation. Most of the electromagnetic radiation that comes to the earth from the sun is invisible.
8.Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids, where the particles are closer together than in gases, where particles are further apart.
9.The sun
The sun is the main source of heat for Earth.