Experiment 1: “Water Cycle Demonstration”:

The purpose of this experiment is to help students understand the water cycle, which is a continuous process by which water evaporates from the Earth’s surface, moves into the atmosphere, condenses in clouds, and then falls as precipitation (rain, snow. ) falls as. As it falls back to the surface. etc.).

necessary ingredients:

  1. A glass jar
  2. Water
  3. A small plate
  4. Plastic wrap
  5. Lace

Fill the glass jar: First fill the glass jar with water, leaving some space at the top.
Place a small plate: Gently place a small plate or saucer in the water inside the jar. Make sure it floats on the surface.
Cover with plastic wrap:

Now, cover the top of the glass jar with a piece of plastic wrap. Make sure it is spread tightly over the top of the jar.
Secure with tape: Use tape to secure the plastic wrap in place, completely sealing the jar opening. It is important that no air can escape from the jar.
Place in sunlight: Place the jar in a sunny location, such as on a windowsill or outside in direct sunlight.
Observe and record:

Over the course of several days, carefully observe what happens inside the jar. You should see some changes:
Water will evaporate from the surface and collect on the inner surface of the plastic wrap.
Small water droplets will form like clouds on the plastic cover.
Eventually, these droplets will collect and fall back onto the plate, simulating rain.
The explanation:
This experiment presents the natural water cycle processes in a simple way. This is how it works:
The water in the jar represents water bodies such as oceans, lakes and rivers on the Earth’s surface.
When the jar is kept in the sun it gets hot. This heat causes the water in the jar to evaporate, just as the sun’s energy causes water to evaporate on the Earth’s surface.
The plastic casing represents the environment. As the warm, moist air rises above the evaporating water, it cools and condenses on the interior surface of the plastic casing, forming water droplets (in the same way as clouds form in the atmosphere).
Eventually, these water droplets become heavy enough to fall back onto the plate, simulating the process of precipitation.
This experiment helps students observe and understand the water cycle and the interconnected processes of evaporation, condensation, and precipitation that play important roles in Earth’s weather and climate systems.
Amazing Fact:
Water is the only substance on Earth that exists naturally in three states: 1. solid (ice), 2. liquid (water), and 3. gas (water vapor).
Earth’s oceans contain about 97% of the planet’s water, and much of it is unknown.

  • Fresh water source is only 3 percent. Most of which is located in Antarctica
  • Water has a high heat capacity, making it an excellent temperature stabilizer for our planet, helping to regulate Earth’s climate.
  • A molecule of water (H2O) is made up of two hydrogen atoms and one oxygen atom.
  • Water is a universal solvent, capable of dissolving more substances than any other liquid on Earth.
  • The world’s longest river, the Nile River, stretches for 4,000 miles (6,650 kilometers) and has been essential to the development of human civilizations. Many civilizations have developed on the banks of this river.
  • About 71% of the Earth’s surface is covered with water, most of which (97.5%) is salt water found in the oceans.
    -Hot water freezes faster than cold water, known as the “Mpemba effect”, although the exact reason is still a matter of debate among scientists.
    About 70% of the human body is made up of water, making it a vital component for our survival.
    -Water can exist in supercooled and supercritical states, exhibiting unique properties in their extreme states.

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