Experimental Design B/C

[TheChiScientist]

Correct! Your turn.

[dxu46]

When is it appropriate to use a line graph over another type of graph?

[UTF-8 U+6211 U+662F]

When is it appropriate to use a line graph over another type of graph?

Click to Show Answer

When both variables are quantative, and the independent variable is continuous, with the dependent variable as a function of the independent variable, e.g. a distance-time graph

[dxu46]

When is it appropriate to use a line graph over another type of graph?

Click to Show Answer

When both variables are quantative, and the independent variable is continuous, with the dependent variable as a function of the independent variable, e.g. a distance-time graph

Your turn.

[UTF-8 U+6211 U+662F]

You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.

[dxu46]

You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.

Possible Answer (Click to Show Hidden Text)

An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.

^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic

[UTF-8 U+6211 U+662F]

You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.

Possible Answer (Click to Show Hidden Text)

An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.

^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic

Try again. Diffusion is not the same thing as dissolution

[dxu46]

You conduct an experiment studying the rate of diffusion of particles in different liquids, such as water, saltwater, and lemonade. Describe some possible applications.

Possible Answer (Click to Show Hidden Text)

An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.

^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic

Try again. Diffusion is not the same thing as dissolution

Well, since dissolution causes diffusion (e.g. block of sugar turning into sugar particles which move from high to low concentration), one could argue that these two topics are related, and the answer above is applicable.

[UTF-8 U+6211 U+662F]

Possible Answer (Click to Show Hidden Text)

An application for this experiment is that some companies who want to dispose of potentially difficult to carry objects can use the results of this experiment to find out which solvent dissolves which solute the fastest to save time and/or work.

^ Yes, I know that this is highly improbable, but there's nothing in the rules about this being very realistic

Try again. Diffusion is not the same thing as dissolution

Well, since dissolution causes diffusion (e.g. block of sugar turning into sugar particles which move from high to low concentration), one could argue that these two topics are related, and the answer above is applicable.

Shrug. That's kind of pushing it, especially since the experiment conducted may or may not have used particles soluble to all the liquids given, but sure. Your turn.

[dxu46]

Bob wonders how being in a swimming pool for an extended amount of time affects body weight. He decides to test this experiment using IV levels of 20 minutes, 40 minutes, and 1 hour.
a. Write a hypothesis for this experiment.
b. List materials and write a condensed procedure for this experiment.
c. Identify and explain one possible experimental error in this experiment.