Paper Towel Lab

advertisement

Name:

Title: Paper Towel Lab

Purpose: To determine which brand of paper towel absorbs water the best

Materials:

4 brands of paper towel, 5cm x 5cm pieces

Container

Dropper

Water

Pen/pencil

Paper

Date:

Procedures:

1.

Copy the data table provided by the instructor in the data section of the lab report

2.

Cut a 5cm x 5cm piece from each of four brands of paper towel

3.

Lay each piece on a smooth, level, water proof surface

4.

Add one drop to the square of the first brand

5.

Continue to add drops of water, one at a time, until the square of paper towel can absorb no more

6.

Record the number of drops used in the data next to the appropriate brand name

7.

Repeat steps 4-6 with the remaining 3 brands

8.

Make a bar graph illustrating the information contained in the table

Data:

Data Table

Brand Name Number of Drops

1.

2.

3.

4.

Analyze and Conclude: (must be in complete sentences)

1.

Did all the squares absorb equal amounts of water? Which brand absorbed the most? Which brand absorbed the least?

2.

If one brand of paper towel absorbs more water than the others can you conclude that it is the brand you should buy? Explain.

3.

Explain which steps of the scientific methods were used in this lab.

Download