Investigation

Question

Activate | Page 3 of 4

Vocabulary
Use context clues to determine the meaning of key terms.

1
Humidity refers to the amount of water in the air. Given this definition, determine which location is most humid.

A
An empty hotel pool with lounge chairs nearby. The air is clear.

B
An indoor greenhouse with many green tropical plants and a stone path. The air is cloudy with mist.

C
A sidewalk and grassy lawn on a sunny day.

D
Dry, cracked earth and brown hills.
2
Latin Meaning
Humilis Lowly, humble
Humus Earth, ground, soil
Humere Moist, wet
Humanus Human
The table above shows four Latin words. Based on the information provided in Question 1, select the most likely root of the word humid.

A
Humilis

B
Humus

C
Humere

D
Humanus
3
Large puddles on a paved road
The midday sun beat down on the puddle, transforming it into invisible water vapor rising into the air. Soon, only a slightly damp spot remained where the puddle once was.

Use the text above to select the best definition of water vapor from the choices below.

A
Water that has been purified

B
Water in the form of a gas

C
Water droplets on a cold surface

D
Water that has become ice
4
The image above shows two items saturated with liquid. Consider the sponge. If you add more water to it, the water will run off into the sink. The same is true for the cake: It cannot absorb any more milk.

Based on this information, what does it mean to be saturated?

Two images are shown side-by-side. The image on the left (labeled "A sponge saturated with water") shows a wet yellow kitchen sponge near a running faucet. Water drips from the corner of the sponge. The image on the right (labeled "Cake saturated with milk") shows a square piece of white cake on a black plate. The cake appears very moist and a thin layer of milk spreads from it onto the plate.

A
Covered in a thin layer of liquid

B
Containing a significant amount of liquid

C
Holding the maximum amount of liquid

D
Weighing more when dry than when wet
5
Review your answers to Questions 1–4. Then, fill in the blanks to complete the sentence below.

On very humid days,
is saturated with invisible
.

Back
Next

Answer 1

Here are the answers to your questions:

1. Humidity refers to the amount of water in the air. Given this definition, determine which location is most humid.

   • B An indoor greenhouse with many green tropical plants and a stone path. The air is cloudy with mist.
     • Explanation: A greenhouse with many plants and mist suggests a high concentration of moisture in the air.

2. Based on the information provided in Question 1, select the most likely root of the word humid.

   • C Humere
     • Explanation: The root "Humere" means moist or wet, which is directly related to the concept of humidity.

3. Use the text above to select the best definition of water vapor from the choices below.

   • B Water in the form of a gas
     • Explanation: Water vapor is essentially water that has evaporated and is now in a gaseous state.

4. Based on this information, what does it mean to be saturated?

   • C Holding the maximum amount of liquid
     • Explanation: Saturated means that the object can no longer absorb any more liquid and is full.

5. Complete the sentence below.

   • On very humid days, the air is saturated with invisible water vapor.
     • Explanation: This sentence indicates that during humid weather, the atmosphere contains a lot of moisture in the form of water vapor, which is not visible.

If you have any more questions or need further assistance, feel free to ask!