Description |
The changes in materials which are not reversible are called chemical reactions. The change of iron in presence of air or water to iron rust is an example. |
Mental Challenge |
Why does shipbuilding industry craftsmen dye-ships and anchors? |
Quizzes and Activities |
Activity: Cook some cupcakes with your parents. Explain which steps are physical or chemical changes. Then enjoy eating your masterpiece. |
Further Reading Sources |
| What is "Material"? | 07:08 | |
| Material Categories | 07:23 |
| Different Types of Material Properties | 06:39 | |
| Physical Properties | 04:05 | |
| Chemical Properties | 05:33 | |
| The Reason of Changing Properties in Nano Scale | 09:39 |