Absorb

Absorption is the process by which one substance takes in another substance. This can happen in various ways, such as when a sponge absorbs water, or when plants absorb nutrients from the soil.

Factors Affecting Absorption

• Surface Area: The larger the surface area of the absorbing material, the greater the amount of substance it can absorb.
• Concentration Gradient: Absorption occurs more rapidly when there is a higher concentration of the substance being absorbed.
• Temperature: In general, absorption increases with temperature as the particles move faster and collide more frequently.
• Pressure: For gases, higher pressure can increase the rate of absorption into a liquid or solid.

Examples of Absorption

Here are a few examples of absorption in everyday life:

1. When a paper towel absorbs a spill.
2. When a plant absorbs water and nutrients from the soil through its roots.
3. When a person takes in nutrients from food in the digestive system.

Study Guide

To understand absorption better, you can focus on the following points:

1. Define absorption and give examples of absorption processes.
2. Explain the factors that affect the rate of absorption.
3. Discuss the importance of absorption in various biological and physical processes.
4. Explore the applications of absorption in different industries (e.g., in water purification, pharmaceuticals, etc.).

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