Science Chapter 5 Lesson 2

Water evaporates due to the sun's energy and winds. The sun's energy provides the heat necessary to increase the water's temperature, causing it to turn into vapor. Additionally, winds help to speed up the process of evaporation by moving the air around, allowing the water molecules to escape into the atmosphere more quickly.

Evaporation is the process by which a liquid turns into a gas. It occurs when the liquid's molecules gain enough energy to break free from the surface and enter the air as vapor. This process is influenced by factors such as temperature, surface area, and air movement. Evaporation is an important part of the water cycle, as it allows water from oceans, lakes, and rivers to enter the atmosphere and eventually form clouds.

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The Richter scale is not a way to measure temperature. It is actually a scale used to measure the magnitude of earthquakes. Temperature is typically measured using the Fahrenheit or Celsius scales.

Condensation is the process in which water vapor in the air cools down and turns back into a liquid. This occurs when the air becomes saturated with water vapor and cannot hold any more moisture. As the air cools, the water vapor molecules slow down and come closer together, forming tiny droplets of liquid water. These droplets can then collect on surfaces, such as clouds, or form dew or fog. Condensation is an important part of the water cycle, as it plays a role in the formation of clouds and precipitation.

Condensation is caused by cold air. When warm air comes into contact with a cold surface, it cools down and loses its ability to hold moisture. This leads to the formation of tiny droplets of water vapor, which we observe as condensation. Cold air has a lower capacity to hold moisture compared to warm air, so when the warm air is cooled, the excess moisture is released as condensation.

Water takes up more space as a solid compared to when it is in a liquid state. This is because when water freezes and turns into ice, its molecules arrange themselves in a more structured and spread-out manner, causing the solid form to occupy a larger volume. In contrast, in its liquid state, the water molecules are more closely packed together, resulting in a smaller volume.

The correct answer is 32 degrees Fahrenheit. This is because 0 degrees Celsius is equal to 32 degrees Fahrenheit. The two temperature scales have different starting points, with 0 degrees Celsius being the freezing point of water and 32 degrees Fahrenheit being the freezing point of a salt and water solution.

A snowflake has six sides, which gives it a hexagonal shape. This is because snowflakes are formed through the process of crystallization, where water molecules freeze and form a hexagonal lattice structure. Each side of the snowflake corresponds to one of the six arms or branches that extend outwards from a central point, creating its unique hexagonal shape.