Question

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

Answer:

The purpose of this experiment is to show that a cell membrane is a type of barrier, and is permeable to some substances, but may not be permeable to all substances.

2. What were the independent, dependent, and control variables in your investigation? Describe the variables used in the part of the experiment with the eggs.

Type your answer here: Independent variable / Manipulated variable: Refers to all the variables in an experiment that provoke a response in another variable. This variable is modified during the experiment to analyze how another variable responds to it. The researcher wants to study how the changes in these variables affect the dependent variable.  The researcher can change these variables to see what changes it implies in an object, process, trait, or anything that depends on them.

Dependent variable / Responding variable: Its response depends on any change in the independent variable. The dependent variable is the one that is being investigated, studied, and measured. It represents a quantity of something which value depends on how the independent variable is modified. It is usually identified by the letter Y.  A change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. In the exposed example, the dependent variable is the egg circumference.

Constants / Controlled variables: Refers to those variables in an experiment that are controlled and have no influence on the results. These variables do not affect the change in the dependent variable values. In the exposed example the use of the lid to seal the jar and the amount and concentration of vinegar might be considered as a controlled variable. These elements are used but do not provoke any change in the size of the egg.

Explanation:

I am so sorry that I do not know the other ones. Hope this helps:)  ジョセフ

Answer 2

The purpose of this experiment is to show that a cell membrane is a type of barrier, and is permeable to some substances, but may not be permeable to all substances.

Lab report variables:

• Manipulated changing: Refers to all the variables in an experiment that inflame a reaction in another changeable. This changeable is reduced all the while the experiment to resolve by virtue of what another changeable responds to it.
• The investigator wants to study by what method the changes in these variables influence the weak changeable.  The scientist can change these variables to visualize what changes it means in an object, process, characteristic, or everything that depends on ruling class.
• Dependent changing / Responding changeable: Its reaction depends on some change in the liberated changing. The helpless changeable is the individual that is to say being examined, intentional, and calculated. It shows a capacity of entity that profit depends on by virtue of what the free changing is changed. It is normally recognized for one answer Y.
• A change in the weak changeable maybe equivalent or with the order reversed equivalent to the change in the maneuvered changing. In the unprotected instance, the contingent changeable is the seed perimeter.
• Constants / Controlled variables: Refers to those variables in an experiment that are regulated and have no influence on the results. These variables do not influence the change in the contingent changeable principles.
• In the unprotected instance the use of the cap to seal the jar and the amount and aggregation of life maybe deliberate as a reserved changeable. These materials are secondhand but do not start some change in the proportion of the seed.

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