1.
What process has taken place in this picture?
Correct Answer
A. Condensation
Explanation
The process that has taken place in the picture is condensation. Condensation occurs when water vapor in the air cools down and turns into liquid water. In the picture, it is likely that the water vapor has cooled down on a surface, such as a glass or a mirror, causing water droplets to form.
2.
What is sea water an example of?
Correct Answer
C. Liquid
Explanation
Sea water is an example of a liquid because it is a fluid that takes the shape of its container and has a definite volume. It is made up of water and various dissolved salts and minerals, and it flows freely. Unlike gases, such as air, sea water does not expand to fill the entire space available to it. Similarly, it is not a solid, which has a fixed shape and volume.
3.
Heat can turn a liquid into a gas. This change is called...
Correct Answer
C. Evaporation
Explanation
Heat can cause the molecules in a liquid to gain energy and move faster. As a result, some molecules at the surface of the liquid gain enough energy to overcome the attractive forces between them and escape into the air as gas. This process is called evaporation. Condensation refers to the opposite process, where a gas turns into a liquid. Respiration is unrelated to the change of a liquid into a gas.
4.
When it rains, puddles of water form on the ground. Eventually, some of this water will evaporate and the rest will soak down into the ground. What is the name for the water that soaks down into the ground?
Correct Answer
C. Groundwater
Explanation
When it rains, the water that forms puddles on the ground eventually undergoes two processes: evaporation and infiltration. Evaporation refers to the water turning into water vapor and rising into the atmosphere. On the other hand, infiltration is the process where the water seeps down through the soil and fills the spaces between particles, forming groundwater. Therefore, the correct answer is groundwater.
5.
What type of water is this?
Correct Answer
B. Surface water
Explanation
This question is asking about the type of water being referred to. The correct answer is "surface water." Surface water refers to water that is found on the surface of the Earth, such as in lakes, rivers, and streams. It is different from groundwater, which is water that is stored underground in aquifers. An aquifer is a natural underground layer of permeable rock or sediment that holds and transmits water.
6.
What is the name for a 'full body of groundwater'?
Correct Answer
A. Aquifer
Explanation
An aquifer is a term used to describe a full body of groundwater. It refers to an underground layer of permeable rock or sediment that holds and transmits water. Aquifers are important sources of water for wells and springs, and they play a crucial role in supplying water to ecosystems and human populations. Surface water, on the other hand, refers to water found on the Earth's surface in lakes, rivers, and oceans. The water table is the level below which the ground is saturated with water, and none obviously means no specific name for a full body of groundwater.
7.
Which of the following correctly describes the water table?
Correct Answer
D. The top level of the aquifer.
Explanation
The water table refers to the top level of the aquifer, which is the underground layer of permeable rock or sediment that can hold and transmit water. It represents the boundary between the saturated zone, where the spaces between the rocks and soil are completely filled with water, and the unsaturated zone, where these spaces are filled with a mixture of air and water. The water table fluctuates depending on factors such as rainfall and groundwater extraction, and it plays a crucial role in determining the availability of groundwater for wells and springs.
8.
What can we insert into an aquifer to make use of the water?
Correct Answer
B. A well
Explanation
A well can be inserted into an aquifer to make use of the water. A well is a deep hole that is dug or drilled into the ground to access underground water sources, such as aquifers. By inserting a well into an aquifer, we can extract the water for various purposes, such as drinking, irrigation, or industrial use.