Question

Graded Assignment SCI113B: Earth Science | Unit 1 | Lessons 6 and 7: Laboratory: Cloud Formation Name: Date: Graded Assignment Lab Report Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit. (4 points) Score 1. Complete the following table based on the observations you made during the lab. Experiment Observations Cold water Cold water plus match Hot water Hhot water plus match 2. (5 points) Score 2. Why do you think the presence of smoke contributed to cloud formation?

Answer 1

Smoke contributes to cloud formation by providing condensation nuclei, which are surfaces for water vapor to condense upon, forming water droplets and visible clouds.

Step-by-step explanation:

The presence of smoke likely contributed to cloud formation because smoke particles can act as condensation nuclei. Clouds form when water vapor in the air cools and condenses onto small particles in the atmosphere. Smoke provides plenty of these microscopic surfaces for water vapor to condense upon, facilitating the transition from a gas to a liquid state. This results in the formation of water droplets that eventually become visible as a cloud.

In an experiment with cold or hot water with a match lit and extinguished in the container, the presence of the smoke increases the number of condensation nuclei. This leads to more rapid and visible cloud formation when compared to just cold or hot water alone, where natural condensation nuclei might be less plentiful.

Answer 2

The table is shown below

Experiment Observations

1. Cold water After opening the bottle, condensation rose to the top of the water bottle where the air was.
2. Cold water plus match The smoke from the match, when added to water, caused condensation that displaced air.
3. Hot water Steam from the hot water covered the top of the bottle.
4. Hot water plus match The match, when lit, caused the smoke to descend all the way to the bottom of the bottle, creating a cloud.

2. I think the presence of the smoke contributed to cloud formation since the moisture in the bottle from the water tends to take in smoke particles which form into clouds. In the sky, water molecules is said to hold onto solid particles

Clouds form as temperatures drop inside a container, causing water molecules to condense around smoke particles.

So, Atmospheric pressure pushes the smoke up to the top of the container, collecting water molecules before descending, creating a cloud.