Evaporation is a surface phenomenon where only surface water get vapourised or evaporated by some factors you will get this in ncert books and boiling point means a specific temperature on which anything starts boiling or posing its attraction power

Evaporation:
Evaporation is a process in which a liquid changes into a gas at a temperature below its boiling point. It occurs at the surface of the liquid and does not involve the entire volume of the liquid. The key points of evaporation are:

1. Definition: Evaporation is the phase transition from a liquid to a gas at a temperature below the boiling point of the liquid.
2. Process: During evaporation, the molecules near the surface of the liquid gain enough energy to overcome the intermolecular forces holding them together, allowing them to escape into the gas phase.
3. Temperature: Evaporation can occur at any temperature below the boiling point of the liquid. The rate of evaporation increases with higher temperatures as the molecules have more energy to break free from the liquid.
4. Heat Transfer: Evaporation is a cooling process as it requires energy in the form of heat to convert the liquid into a gas. This heat is absorbed from the surroundings, resulting in a decrease in temperature.
5. Surface Area: The rate of evaporation is influenced by the surface area of the liquid exposed to the surroundings. More surface area leads to a faster evaporation rate.
6. Speed of Process: Evaporation is a relatively slow process compared to boiling. It occurs gradually over time as the liquid loses molecules to the gas phase.

Boiling Point:
Boiling is the process in which a liquid changes into a gas throughout its entire volume. It occurs when the vapor pressure of the liquid equals the atmospheric pressure. The key points of boiling point are:

1. Definition: Boiling is the rapid vaporization of a liquid when it is heated to a temperature where its vapor pressure equals the atmospheric pressure.
2. Process: Boiling occurs when the temperature of the liquid reaches its boiling point, which is specific to each substance. At this point, bubbles of vapor form throughout the liquid and rise to the surface, resulting in the conversion of the entire liquid into a gas.
3. Temperature: The boiling point of a substance is the temperature at which its vapor pressure equals the external pressure (usually atmospheric pressure). Different substances have different boiling points due to variations in intermolecular forces.
4. Heat Transfer: Boiling is an endothermic process that requires a continuous input of heat to sustain the phase transition. This heat is used to break the intermolecular forces and convert the liquid into a gas.
5. Rapid Process: Boiling is a rapid process compared to evaporation. Once the liquid reaches its boiling point, the phase transition occurs quickly throughout the entire volume of the liquid.
6. Constant Temperature: During boiling, the temperature of the liquid remains constant until all the liquid is converted into vapor. This plateau in temperature is known as the boiling point plateau.

In summary, the main difference between evaporation and boiling point lies in the process and temperature range. Evaporation occurs at temperatures below the boiling point, only at the liquid's surface, while boiling occurs throughout the entire volume of the liquid at its boiling point. Evaporation is a slower and gradual process, while boiling is rapid and sustained.