A thermometer is used to check the temperature. It is a device that measures the temperature of a substance or an environment. It consists of a glass tube filled with a liquid, usually mercury or alcohol, that expands or contracts with temperature changes. The expansion or contraction of the liquid is indicated by a scale on the thermometer, allowing the user to read the temperature. Thermometers are commonly used in various settings, such as in homes, laboratories, and medical facilities, to monitor and control temperature.

An indicator is useful based on changes in color because it can provide visual cues or signals about a change in a substance or a reaction. Color changes can indicate the presence or absence of certain chemicals, the completion of a reaction, or the occurrence of a physical or chemical change. Indicators are often used in chemistry and biology experiments to determine the pH level of a solution or to detect the presence of specific substances. By observing color changes, scientists can gather important information about the properties and behavior of substances.

Plants do not have lungs like animals, but they also perform respiration. Through tiny openings called stomata, plants take in carbon dioxide and release oxygen. This process is essential for their survival, as it provides them with the energy they need to grow and carry out other metabolic activities.

Photosynthesis is the process by which green plants, algae, and some bacteria use sunlight to synthesize foods with the help of chlorophyll pigment. During photosynthesis, carbon dioxide and water are converted into glucose (a form of sugar) and oxygen. This process is fundamental to the survival of most life forms on Earth, as it produces food and oxygen, both of which are essential for life. Respiration is a different biological process involving the release of energy from food/sugar, fermentation is a metabolic process that doesn’t involve sunlight, and germination is the process of a seed sprouting into a plant.

Photosynthesis is the process by which plants convert water, and carbon dioxide into glucose and oxygen by fixing or absorbing sunlight. During photosynthesis, plants use chlorophyll in their leaves to capture solar energy, which is then used to convert water and carbon dioxide into glucose. This process is essential for plants to produce their own food and release oxygen into the atmosphere. Transpiration is the process of water movement through a plant. Translocation refers to the movement of sugars and other nutrients within a plant. Perspiration is the process of sweating in animals.