# What do the arrows mean in the water cycle?

## What do the arrows mean in the water cycle?

The arrows show the movement of water molecules through the water cycle. The circled numbers represent the processes that occur as the water molecules reach the different stages of the water cycle.

## How do molecules move in the water cycle?

gas vibrate and move freely at high speeds. liquid vibrate, move about, and slide past each other. solid vibrate (jiggle) but generally do not move from place to place.

What causes molecules to move?

Concepts: Adding heat energy causes molecules to move more quickly. Adding heat energy to most liquids and gases causes them to expand (become less dense). Adding heat energy can change the state of a gas, liquid, or solid.

How fast do molecules move in a gas?

As a side note, gas molecules tend to move very fast. At 0 °C the average H2 molecule is moving at about 2000 m/s, which is more than a mile per second and the average O2 molecule is moving at approximately 500 m/s.

### Why do molecules never stop moving?

The quick answer to your question is no, molecules do not stop moving at absolute zero. They move much less than at higher temperatures, but they still have small vibrations at absolute zero. The vibrations of the atoms and bonds are restricted because of the way quantum mechanics relates to their symmetry.

### How is the movement of water described in the water cycle?

The water cycle, also known as the hydrologic cycle or the hydrological cycle, describes the continuous movement of water on, above and below the surface of the Earth. During this process, water changes its state from one phase to another, but the total number of water particles remains the same.

How does water enter the atmosphere in the water cycle?

A Multi-Phased Journey. Plants take in water through their roots, then release it through small pores on the underside of their leaves. In addition, a very small portion of water vapor enters the atmosphere through sublimation, the process by which water changes directly from a solid (ice or snow) to a gas.

How does the sun affect the water cycle?

Students should follow the instructions to explore the role of the Sun in the water cycle. Student should use the arrows to move the water drop and direct the Sun’s rays. Students will see that energy from the Sun causes the water to evaporate. Clouds will form and grow, eventually dropping rain and snow on the land.

#### How is the water cycle important to life on Earth?

, cycle. Water molecules continuously move from location to location in this cycle. The water cycle is important to weather and climate and, ultimately, to all life on Earth. The water cycle is driven primarily by the energy from the sun. This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil.