The cause & effect when applying heat
Storyboard Text
- dad did you see mom?
- your mom is in the kitchen
- mom! mom! mom!
- what is it Joroche?
- mom can you help ME with my activity, I forgot my notes in the school
- I'm not good in explaining, but I'll try my best
- Heat energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.
- Do you know the cause and effect when applying heat?
- A common example is a melting ice when it is placed out of the refrigerator. The ice absorbs heat from the surroundings, which will then melt after a few minutes. On the other hand, if water is subjected to heat, it evaporates.
- Heat can bring about physical changes in matter. Some solid materials melt when enough heat is applied to them.
- Heat does not only produce physical change in a material, sometimes heating a material causes it to undergo chemical changes. One common example of this is the egg that I cooked for your breakfast, the egg has undergone chemical change by cooking.
- Heat decomposes limestone to form lime and carbon dioxide. It was heat that decomposed sugar into carbon and water vapor. Heat also decomposes many organic compounds. Light and heat can easily decompose many vitamins.
- thank you mom for helping me, I promise to do my best in school
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