Question

HELPPPPPPPPPP 100 POINTSSSSSSSSSS

Lab Report
Condensation
It’s time to complete your Lab Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U1_ Lab_Condensation_Alice_Jones.doc).
Introduction
1. What was the purpose of the experiment?
Type your answer here:
2. What were the independent, dependent, and control variables in your investigation?
Type your answer here:
Experimental Methods
1. What tools did you use to collect your data?
Type your answer here:
2. Write your procedure. List each step so that another student could follow the procedure and repeat your experiment.
Type your answer here:
Data and Observations
1. Record your observations in a data table.
Type your answer here:
Conclusions
1. What conclusions can you draw about how the temperature of air affects the time for water vapor to condense when it mixes with warm, humid air? Write an evidence-based claim.
Type your answer here:
2. A cold front is the zone where a cold air mass is replacing a warmer air mass. What do you predict will happen to the weather at a cold front when the air is humid? Use cause-and-effect relationships and evidence from your experiment to support your prediction.
Type your answer here:

Answer 1

A laboratory report has three main functions:

(1) To provide a record of the experiments and raw data included in the report,

(2) To provide sufficient information to reproduce or extend the data, and

(3) To analyze the data, present conclusions and make recommendations based on the

experimental work.

General Comments:

The single most important requirement for a laboratory report is clarity. Imagine that your

audience is one of your classmates who missed that experiment.

If you are using a word processor for your lab report, then use the spelling and grammar

checkers. The grammar check can be annoying because often technical sentences are wordy

and complex, but it will help you avoid using too many passive sentences. In general, passive

sentences are less understandable. However, grammar check will not assess clarity, and it will

ignore simple errors. (I do not doubt there are still mistakes in this document I have run it through

spelling and grammar checks.)

Many technical writers prefer to write sentences with passive verbs. A simple example: “The

spring constant k was found from the slope to be 3.02 N/m.” If you run this sentence through the

grammar check, it will tell you that “was found” is a verb in the passive voice. To change this to

an active voice you could write: “The spring constant k is the slope, 3.02 N/m.” Not every

sentence has to be in an active voice. What you want is a report that is readable.

Lab Report Structure:

I. Cover Sheet: This page has the course number and assigned lab section, the title of the

experiment, your name, your lab partner’s names, the date that the lab was performed and

your TA’s name.

II. Abstract: The purpose of an abstract in a scientific paper is to help a reader decide if your

paper is of interest to him/her. (This section is the executive summary in a corporation or

government report; it is often the only section that a manager reads.)

The abstract should be able to stand by itself, and it should be brief. Generally, it consists of

three parts which answer these questions:

What did you do? – A statement of the purpose of the experiment, a concise

description of the experiment and physics principles investigated.

What were your results? – Highlight the most significant results of the experiment.

What do these results tell you? – Depending on the type of experiment, this is

conclusions and implications of the results or it may be lessons learned form the

experiment.

Write the abstract after all the other sections are completed. (You need to know everything in

the report before you can write a summary of it.)

III. Data Sheets: For each experiment, the lab manual has one or more data sheets for

recording raw data, as well as, intermediate and final data values. These are not for doodling,

but for recording your data. Record the data neatly in pen. If your data values are so sloppily

recorded that you have to recopy them, then the accuracy of the data is questionable. This

fact will be reflected in your laboratory performance score. If there is a mistake, then draw a

single line through that value. “White-Out” and similar covering agents are expressly

forbidden.

1

The values that you record on your data sheet must have:

Units (such as kg for kilograms)

Reasonable uncertainty estimates for given instruments and procedures

Step-by-step explanation:

pp

Step-by-step explanation:

Answer 2

A laboratory report has three main functions:

(1) To provide a record of the experiments and raw data included in the report,

(2) To provide sufficient information to reproduce or extend the data, and

(3) To analyze the data, present conclusions and make recommendations based on the

experimental work.

General Comments:

The single most important requirement for a laboratory report is clarity. Imagine that your

audience is one of your classmates who missed that experiment.

If you are using a word processor for your lab report, then use the spelling and grammar

checkers. The grammar check can be annoying because often technical sentences are wordy

and complex, but it will help you avoid using too many passive sentences. In general, passive

sentences are less understandable. However, grammar check will not assess clarity, and it will

ignore simple errors. (I do not doubt there are still mistakes in this document I have run it through

spelling and grammar checks.)

Many technical writers prefer to write sentences with passive verbs. A simple example: “The

spring constant k was found from the slope to be 3.02 N/m.” If you run this sentence through the

grammar check, it will tell you that “was found” is a verb in the passive voice. To change this to

an active voice you could write: “The spring constant k is the slope, 3.02 N/m.” Not every

sentence has to be in an active voice. What you want is a report that is readable.

Lab Report Structure:

I. Cover Sheet: This page has the course number and assigned lab section, the title of the

experiment, your name, your lab partner’s names, the date that the lab was performed and

your TA’s name.

II. Abstract: The purpose of an abstract in a scientific paper is to help a reader decide if your

paper is of interest to him/her. (This section is the executive summary in a corporation or

government report; it is often the only section that a manager reads.)

The abstract should be able to stand by itself, and it should be brief. Generally, it consists of

three parts which answer these questions:

What did you do? – A statement of the purpose of the experiment, a concise

description of the experiment and physics principles investigated.

What were your results? – Highlight the most significant results of the experiment.

What do these results tell you? – Depending on the type of experiment, this is

conclusions and implications of the results or it may be lessons learned form the

experiment.

Write the abstract after all the other sections are completed. (You need to know everything in

the report before you can write a summary of it.)

III. Data Sheets: For each experiment, the lab manual has one or more data sheets for

recording raw data, as well as, intermediate and final data values. These are not for doodling,

but for recording your data. Record the data neatly in pen. If your data values are so sloppily

recorded that you have to recopy them, then the accuracy of the data is questionable. This

fact will be reflected in your laboratory performance score. If there is a mistake, then draw a

single line through that value. “White-Out” and similar covering agents are expressly

forbidden.

1

The values that you record on your data sheet must have:

Units (such as kg for kilograms)

Reasonable uncertainty estimates for given instruments and procedures

Step-by-step explanation:

pp