Surface

The surface refers to the outermost layer or the topmost part of an object or substance. It is the boundary between the material and its surroundings. The surface can be solid, such as the surface of a table, liquid, such as the surface of water, or gas, such as the surface of the Earth's atmosphere.

Properties of Surfaces

1. Texture: Surfaces can have different textures, such as smooth, rough, bumpy, or uneven.

2. Reflectivity: Surfaces can reflect light in different ways, leading to variations in appearance.

3. Permeability: Some surfaces allow substances to pass through them, while others act as barriers.

4. Adhesion and Cohesion: Surfaces can exhibit adhesion (the ability to stick to other substances) and cohesion (the ability to stick to itself).

Examples of Surfaces

1. Earth's Surface: The top layer of the Earth, including land, water bodies, and the atmosphere.

2. Human Skin: The outermost layer of the body that serves as a protective surface.

3. Mirror Surface: A smooth, highly reflective surface that can form clear images.

Study Guide

1. What is the surface?

Answer: The surface refers to the outermost layer or the topmost part of an object or substance.

2. Name two properties of surfaces.

Answer:

• Texture
• Reflectivity

3. Provide an example of a surface that exhibits adhesion.

Answer: Human skin

[Surface] Related Worksheets and Study Guides:

• Earth's SurfaceEarth Science • High School