Paper Towel Absorbency Test – Scientific Method Lesson

Students compare paper-towel absorbency and use their results to practice experimental reasoning. Guided science notes, matched teacher slides and an extension sheet support the investigation.
Grades
Grades 4–6
Pages
96
File type
Multiple File Types
Answer key
Included

Updated Dec 14, 2023

Subject
Science
Topic
Paper towel absorbency, Scientific method
Resource types
Worksheets
Answer key
Included
Standards
6.SP.B.5

Product description

From the author

Paper Towel Absorbency Test - Scientific Method Lesson Included

This engaging activity introduces students to the scientific method through an experiment involving a common household material - paper towels.

Students will form a hypothesis about which paper towel will be the most absorbent. They will then collect data by placing different paper towel brands into a liquid to see the effect.

Your students are provided with clear procedures that will guide them to record their results in a well-organized data table and graph. As a class, data can be compiled and averages calculated to identify trends.

Students learn important data analysis skills as they create graphs to visually represent the results. Educators will appreciate the post-experiment reflection questions that reinforce the purpose and process of the scientific method.

This hands-on lab nurtures students' natural curiosity while teaching fundamental experimental design. With its real-world topic and tactile investigation, it motivates learners across various grades and learning styles.

After completing the activity, students will better understand how to use observation, critical thinking, and representation of evidence to answer a testable question.

Additionally, this resource includes my lesson on the Scientific Method. The lesson includes a detailed overview of what the scientific method is as well as how to implement it.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Design and carry out a controlled experiment testing paper towel absorbency across three brands

  • Identify independent, dependent, and controlled variables and a control group within a given experiment scenario

  • Write a testable if/then hypothesis for a given research question

Teaching tips

  • Use the Student Lesson Outline and student slide deck to teach scientific-method vocabulary before assigning the paper towel experiment as the applied task

  • Use the Lab Extension Activity ideas, such as timing absorbency or testing other liquids, for early-finisher groups

  • Review the embedded 'Burger Power' control-group example together, since it is used as a practice scenario for identifying variables before students design their own experiment

Skills covered

  • Experimental design — students plan a controlled test comparing three paper towel brands using a graduated cylinder and timer.

  • Hypothesis writing — students write if/then hypotheses such as predicting which towel brand will absorb the most water.

  • Data graphing conventions — students apply rules for titling, labeling, and scaling a graph of their absorbency averages.

Good to know

Questions teachers ask about this resource

How does the Burger Power example prepare students for the experiment?

Students identify the independent variable, dependent variable and control group in a scenario with one hundred customers split into two groups of fifty. The example provides practice in experimental design before the towel investigation.

How do the slide versions differ?

The student slides leave blanks for guided notes. The teacher slides and matching PDF show the completed terms and answers for the same content.

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Curriculum

Standards, concepts & topics

Standards

  • 6.SP.B.5

Core concepts

  • Scientific method

  • Variables and hypothesis

  • Data collection and graphing

  • Controlled experiment

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