The continuous movement of water

1. THE WATER CYCLE

2. WHAT IS WATER CYCLE?
The water cycle also called
hydrologic cycle that shows the
continuous movement of water
within the Earth and atmosphere. It
is a complex system that includes
many different processes. Involved
in the water cycle, the most
important are evaporation,
transpiration, condensation,
precipitation, and runoff.

3. 1. EVAPORATION
• One of the major processes in the cycle, is the transfer of
water from the surface of the Earth to the atmosphere. By
evaporation, water in the liquid state is transferred to the
gaseous, or vapour, state. This transfer occurs when some
molecules in a water mass have attained sufficient kinetic
energy to eject themselves from the water surface.

4. 2. TRANSPIRATION
• Transpiration is the process by which plants lose water vapor
through small openings called stomata in their leaves. This loss of
water vapor helps transport nutrients and minerals from the roots
to the rest of the plant and also plays a crucial role in regulating a
plant's temperature and maintaining its structural integrity. It's a
vital part of the plant's overall water and nutrient uptake system.

5. 3. CONDENSATION
• Condensation is the process in which a gas or vapor transforms
into a liquid when it loses heat energy. This can occur when warm
air cools down, leading to the formation of water droplets, such as
when moisture on a cold glass or when clouds form in the
atmosphere through the cooling of water vapor.

6. 4. PRECIPITATION
• Precipitation refers to any form of water, liquid or solid, that
falls from the atmosphere to the Earth's surface. This includes
rain, snow, sleet, and hail. Precipitation is a key component of
the Earth's water cycle and plays a crucial role in maintaining
ecosystems and providing freshwater resources.

7. 5. RUN-OFF
• Runoff is the movement of water, usually as the
result of precipitation, across the Earth's surface
and into bodies of water, such as rivers, lakes, and
oceans. When it rains or snows, the water doesn't
all get absorbed into the ground; some of it flows
over the land's surface, collecting in streams and
rivers. Runoff can carry pollutants, sediments, and
nutrients from the land into these bodies of
water, affecting water quality and ecosystem
health. Proper management of runoff is essential
for environmental and water resource protection.