Test: Air & Water - 2 - Grade 4 MCQ

Latitude is a measurement of distance from the equator, expressed in degrees. It determines the position of a location on the Earth's surface relative to the equator.

The Earth's axis is tilted relative to its orbit around the sun. This tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the change of seasons.

Humidity refers to the moisture content present in the atmosphere. It is a measure of the concentration of water vapor in the air.

Surface currents are large-scale movements of ocean water driven by wind patterns, temperature differences, and the Earth's rotation. These currents can have significant impacts on regional climates.

Generally, as elevation increases, the temperature of the air decreases. This is because the air becomes thinner at higher altitudes, resulting in lower temperatures.

Global warming refers to the long-term increase in Earth's average temperature, and one of the main factors contributing to it is the increase in greenhouse gases, such as carbon dioxide, in the atmosphere.

The dew point is the temperature at which air becomes saturated with water vapor, leading to the formation of dew, fog, or cloud droplets. When the temperature drops below the dew point, condensation occurs.

To find out whether the area of exposed surface affects the rate of evaporation. The experiment aims to investigate the impact of the exposed surface area on the rate of evaporation by comparing the time taken for water to evaporate completely from different-sized containers.

Land breeze is a wind that blows from the land toward the sea during the night. It occurs because the land cools faster than the sea, creating a pressure gradient that results in the land breeze.

When the area of exposure to air increases, more water molecules come into contact with the air, leading to an increased rate of evaporation.