MAKE LIST OF 10 PHYSICAL CHANGE & CHEMICAL CHANGE EACH, WHAT YOU OBSERVE IN YOUR DAILY LIFE.
Answers
Explanation:
physical change
An ice cube melting into water in your drink
Freezing water to make ice cubes
Boiling water evaporating
Hot shower water turning to steam
Steam from the shower condensing on a mirror
chemical change
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Examples of Chemical Changes in Everyday Life
Chemical changes might bring to mind fireworks or explosions. However, some examples of chemical changes are subtle. Explore examples of chemical changes in cooking, nature, and your home. Get an understanding of the difference between physical and chemical changes.
Examples of Chemical Changes in Everyday Life
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Examples of Chemical Changes
Not all reactions are chemical. However, if a reaction makes a new substance, then you are looking at a chemical change. For example, those fireworks covering the sky on the fourth of July are the result of a chemical change. Photosynthesis in plants is also an example of a chemical reaction. In this case, sunlight is changed into food for the plant. Typically, chemical reactions have a few tells, including:
Color changes
Releasing or absorbing of energy
Odor changes
Gas production
Chemical changes happen all around you, even in your own home. Explore some fun examples in cooking, nature, and your home.
Examples of Chemical Changes in Cooking
When you mix the flour and sugar to make a cake, you might not think it's a chemical reaction at play but it is. Baking a cake is a classic example where a new substance is created from mixing flour, sugar, vanilla, cocoa, and heat. Here are a few other cooking examples.
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Rising Bread
Bread rising is exciting, right? Not so much! However, not all chemical changes are exciting. While not thrilling, the yeast causing the bread to rise is a chemical change. Why? Well, yeast breaks the starches in the bread dough down into sugars, and those sugars metabolize into carbon dioxide and ethanol. The carbon dioxide makes the bread rise.
Caramelization
Do you like caramelized onions? Either way, it’s a great example of a chemical change. In caramelization, the sugar is broken down to create a specific aroma and taste.
Maillard Browning
Maillard browning is a strange name, but it's how you get that delectable brown crust on your bread and barbecued meat. Maillard browning, named for the chemist Louis-Camille Maillard, is a series of chemical reactions starting with amino acids and sugar.
Natural Examples of Chemical Changes
Cooking isn’t the only place you see chemical changes. From the way that your body digests food to a match burning when you strike it, chemical reactions can be found everywhere. Dive into a few different examples in nature and your home.
Leaves Changing Color
Those beautiful colors of fall aren’t happening by chance. They are thanks to chemical changes in the leaves. Typically, leaves are green due to chlorophyll used for photosynthesis. However, before trees take their winter nap, chlorophyll in the leaves breaks down. As the chlorophyll breaks down, the carotene and anthocyanins naturally in leaves all summer long take center stage creating those beautiful red and yellow colors.
Souring Food
One of the key characteristics a chemical change has taken place is odor, which is why people might smell foods to see if they went bad. For example, milk goes bad because of fermentation. This is where the lactose is transformed into lactic acid by bacteria surviving pasteurization.
Answer:
Explanation:
Chemical changes :
1. souring of milk
2. ripening of fruit
3. cooking of food
4. growth of a plant
5. dying of animals, plants and human beings, etc.
6. digestion of food
7. burning of wood
8. cutting of trees
9. reproduction in living organisms
10. manufacturing of paper
Physical changes :
1. melting of ice
2. boiling of water
3. cutting of hair
4. heating of milk
5. washing of hands
6. washing of utensils
7. the breaking of glass
8. making of jewelry
9. condensation of water
10. freezing of water to ice
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