What are some examples of chemical and physical changes in heat taking place around you for one day?

maybe evaporation?

One example of chemical change is lighting a gas stove to cook material. That is the oxidation of methane.

CH4 + 2O2 ==> CO2 + 2H2O
Cooking is another example of chemical change; for example, baking bread.

One example of a physical change is one suggested by Cathrine.

Melting ice: physical change

Thanks. Is the oxidation of methane exothermic or endothermic?

All oxidations are exothermic

Yes, melting ice is a physical change.

To identify examples of chemical and physical changes related to heat in your surroundings throughout the day, you can observe different situations and processes. Here are some examples:

1. Boiling water: When you heat a pot of water on a stove, the water molecules gain energy, causing them to move faster. As a result, the water reaches its boiling point and undergoes a physical change from a liquid to a gas (water vapor).

2. Melting ice: If you leave an ice cube on a table, it will gradually absorb heat from the surroundings. The energy causes the solid ice to gain enough energy to transition into a liquid state, a physical change known as melting.

3. Cooking food: When you heat raw ingredients like vegetables or meat in a pan or oven, several chemical and physical changes occur. The heat causes proteins in the food to denature, changing their structure. Additionally, carbohydrates undergo caramelization, leading to changes in color and flavor. These are examples of chemical changes resulting from heat.

4. Rusting: Metal objects, such as iron, exposed to moisture can undergo a chemical change called oxidation or rusting. Oxygen from the air combines with the iron, facilitated by moisture, forming iron oxide (rust). Although moisture is essential for rusting, heat can accelerate the rusting process.

5. Candle burning: Lighting a candle involves several chemical changes. The heat from the flame melts the solid wax, causing it to become a liquid. The heat also vaporizes the liquid wax, which reacts with oxygen from the air, producing carbon dioxide and water vapor as byproducts. These chemical reactions allow the candle to burn and release light and heat.

Remember that these examples are just some possibilities, and there are many more chemical and physical changes involving heat occurring around you every day. By observing your surroundings and understanding the concepts of chemical and physical changes, you can identify and learn from various instances.