Final answer:
The question asks for the identification of physical and chemical changes. Absorption of water into a towel, tearing a piece of tin foil, and breaking glass are physical changes, while burning a log of wood and photosynthesis are chemical changes.
Step-by-step explanation:
The subject of this question pertains to identifying whether certain scenarios depict a physical change or a chemical change. For each example:
- Absorption of water into a towel is a physical change (P). This is because the towel and the water retain their own properties.
- Burning a log of wood is a chemical change (C). During the process, wood reacts with oxygen in the air to form new substances: ash, smoke, and gases.
- Tearing a piece of tin foil is also a physical change (P). The tin foil remains the same substance before and after the tearing.
- Breaking glass is a physical change (P), as the glass remains glass before and after it's broken.
- Photosynthesis is a chemical change (C). It involves the conversion of carbon dioxide and water into glucose (a type of sugar) and oxygen, which are new substances.
Learn more about physical and chemical changes