Understanding Physical and Chemical Changes

✨ Physical changes alter the appearance of a substance without creating a new substance or breaking chemical bonds.

✂️ Cutting someone's hair or wadding up paper into smaller pieces are examples of physical changes.

❄️🌬️ Phase changes, such as ice melting into a liquid and then evaporating into a gas, are also physical changes.

🔀 Mixtures, like salt and water, can be separated later, making them physical changes.

🔥 Burning or fire is an indicator of a chemical change.

🌡️ A temperature change without heating or cooling is an indicator of a chemical change.

💥 An explosion is an indicator of a chemical change.

🎨 A change in color is a chemical change.

👃 A change in odor can be a clue that a chemical change has occurred.

💦 Mixing items and seeing bubbles or fizzing indicates a chemical change.

📺 The video is about physical and chemical changes.

🔧 Physical changes involve a change in appearance, but the substance remains the same.

⚗️ Chemical changes involve a new substance being formed with different properties.