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# Hands-on Activity:Enough Energy? Play the Renew-a-Bead Game

### Quick Look

Time Required: 45 minutes

(30 minutes for game and worksheet; 20 minutes for class discussion)

Expendable Cost/Group: US \$0.75

Group Size: 2

Activity Dependency:

Subject Areas: Data Analysis and Probability, Physical Science, Physics

### Summary

The “renew-a-bead game” provides youngsters with a quantitative illustration of how non-renewable resources are depleted while renewable resources continue to provide energy. Student pairs remove beads—representing units of renewable and non-renewable energy—from a bag—representing a country. A certain number of beads are removed from the bag each "year." At some point, no non-renewable (fossil fuel) energy beads remain. Since groups/countries have different ratios of renewable and non-renewable energy beads in their bags, they compare the remaining beads and time when they ran out of energy to see the value of utilizing a greater proportion of renewable resources as a sustainable energy approach. A student worksheet with instructions, data collection table and discussion questions is provided.
This engineering curriculum aligns to Next Generation Science Standards (NGSS).

### Engineering Connection

Engineers research, develop and design equipment that captures energy from renewable and fossil fuel resources for human use. Given the eventual depletion in fossil fuel resources, engineers design technologies that capture renewable energy resources in more efficient, reliable and economically competitive ways. The bag of beads used in this game represents a physical model of our energy resources. Engineers use models of systems to help them understand the systems, discover problems, and find solutions.

### Learning Objectives

After this activity, students should be able to:

• Explain why an increased dependence on renewable energy sources is an inevitable part of our future.
• Describe how the depletion of fossil fuels is a serious global issue.

### Educational Standards Each TeachEngineering lesson or activity is correlated to one or more K-12 science, technology, engineering or math (STEM) educational standards. All 100,000+ K-12 STEM standards covered in TeachEngineering are collected, maintained and packaged by the Achievement Standards Network (ASN), a project of D2L (www.achievementstandards.org). In the ASN, standards are hierarchically structured: first by source; e.g., by state; within source by type; e.g., science or mathematics; within type by subtype, then by grade, etc.

###### NGSS: Next Generation Science Standards - Science
NGSS Performance Expectation

MS-ESS3-4. Construct an argument supported by evidence for how increases in human population and per-capita consumption of natural resources impact Earth's systems. (Grades 6 - 8)

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This activity focuses on the following Three Dimensional Learning aspects of NGSS:
Science & Engineering Practices Disciplinary Core Ideas Crosscutting Concepts
Construct an oral and written argument supported by empirical evidence and scientific reasoning to support or refute an explanation or a model for a phenomenon or a solution to a problem.

Alignment agreement:

Typically as human populations and per-capita consumption of natural resources increase, so do the negative impacts on Earth unless the activities and technologies involved are engineered otherwise.

Alignment agreement:

Cause and effect relationships may be used to predict phenomena in natural or designed systems.

Alignment agreement:

All human activity draws on natural resources and has both short and long-term consequences, positive as well as negative, for the health of people and the natural environment.

Alignment agreement:

Scientific knowledge can describe the consequences of actions but does not necessarily prescribe the decisions that society takes.

Alignment agreement:

###### Common Core State Standards - Math
• Find a percent of a quantity as a rate per 100 (e.g., 30% of a quantity means 30/100 times the quantity); solve problems involving finding the whole, given a part and the percent. (Grade 6) More Details

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###### International Technology and Engineering Educators Association - Technology
• Decisions to develop and use technologies often put environmental and economic concerns in direct competition with one another. (Grades 6 - 8) More Details

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• Energy is the capacity to do work. (Grades 6 - 8) More Details

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###### National Council of Teachers of Mathematics - Math
• recognize and apply mathematics in contexts outside of mathematics (Grades Pre-K - 12) More Details

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• use representations to model and interpret physical, social, and mathematical phenomena (Grades Pre-K - 12) More Details

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• work flexibly with fractions, decimals, and percents to solve problems (Grades 6 - 8) More Details

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• understand and use ratios and proportions to represent quantitative relationships (Grades 6 - 8) More Details

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• develop and analyze algorithms for computing with fractions, decimals, and integers and develop fluency in their use (Grades 6 - 8) More Details

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• model and solve contextual problems using various representations, such as graphs, tables, and equations (Grades 6 - 8) More Details

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• use graphs to analyze the nature of changes in quantities in linear relationships (Grades 6 - 8) More Details

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• select, create, and use appropriate graphical representations of data, including histograms, box plot, and scatterplots (Grades 6 - 8) More Details

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• use observations about differences between two or more samples to make conjectures about the populations from which the samples were taken (Grades 6 - 8) More Details

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###### National Science Education Standards - Science
• Develop descriptions, explanations, predictions, and models using evidence. Students should base their explanation on what they observed, and as they develop cognitive skills, they should be able to differentiate explanation from description--providing causes for effects and establishing relationships based on evidence and logical argument. This standard requires a subject matter knowledge base so the students can effectively conduct investigations, because developing explanations establishes connections between the content of science and the contexts within which students develop new knowledge. (Grades 5 - 8) More Details

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• Think critically and logically to make the relationships between evidence and explanations. Thinking critically about evidence includes deciding what evidence should be used and accounting for anomalous data. Specifically, students should be able to review data from a simple experiment, summarize the data, and form a logical argument about the cause-and-effect relationships in the experiment. Students should begin to state some explanations in terms of the relationship between two or more variables. (Grades 5 - 8) More Details

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• Use mathematics in all aspects of scientific inquiry. Mathematics is essential to asking and answering questions about the natural world. Mathematics can be used to ask questions; to gather, organize, and present data; and to structure convincing explanations. (Grades 5 - 8) More Details

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• Mathematics is important in all aspects of scientific inquiry. (Grades 5 - 8) More Details

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• Perfectly designed solutions do not exist. All technological solutions have trade-offs, such as safety, cost, efficiency, and appearance. Engineers often build in back-up systems to provide safety. Risk is part of living in a highly technological world. Reducing risk often results in new technology. (Grades 5 - 8) More Details

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• Technological solutions have intended benefits and unintended consequences. Some consequences can be predicted, others cannot. (Grades 5 - 8) More Details

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• Human activities also can induce hazards through resource acquisition, urban growth, land-use decisions, and waste disposal. Such activities can accelerate many natural changes. (Grades 5 - 8) More Details

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• Natural hazards can present personal and societal challenges because misidentifying the change or incorrectly estimating the rate and scale of change may result in either too little attention and significant human costs or too much cost for unneeded preventive measures. (Grades 5 - 8) More Details

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• Important personal and social decisions are made based on perceptions of benefits and risks. (Grades 5 - 8) More Details

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• Science influences society through its knowledge and world view. Scientific knowledge and the procedures used by scientists influence the way many individuals in society think about themselves, others, and the environment. The effect of science on society is neither entirely beneficial nor entirely detrimental. (Grades 5 - 8) More Details

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• Technology influences society through its products and processes. Technology influences the quality of life and the ways people act and interact. Technological changes are often accompanied by social, political, and economic changes that can be beneficial or detrimental to individuals and to society. Social needs, attitudes, and values influence the direction of technological development. (Grades 5 - 8) More Details

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###### New York - Science
• Construct an argument supported by evidence for how increases in human population and per-capita consumption of natural resources impact Earth's systems. (Grades 6 - 8) More Details

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Suggest an alignment not listed above

### Materials List

Each group needs:

• 1 paper bag containing 100 black and white beads, with black beads representing non-renewable energy resources and white beads representing renewable energy resources; the ratio of black to white beads varies by group

### More Curriculum Like This

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### Introduction/Motivation

What do we call energy resources that are replenished at the same rate that we use them? (Listen to student answers.) That’s right, we call them renewable energy resources. What are some examples of renewable energy resources? (Listen to student answers.) That’s right; solar, wind, geothermal and tidal energy are good examples. Biomass can be renewable if we use the plant material at the same rate that it grows. If we chop down and burn all the trees in a short period though, that resource is not considered renewable.

If you think about it, fossil fuels may also be considered a form of solar energy because they were generated from biomass materials that existed millions of years ago. But we do not consider them to be renewable because we use them at a MUCH faster rate than they were generated.

In the 1960s, a petroleum geologist predicted that the U.S. production of oil would decline shortly since most of the easily extracted oil was already pumped from the ground and new oil reserves were not being found in the U.S. Dr. Hubbert was correct. U.S. oil production started to decline around 1970. Now, geologists and petroleum engineers predict a new peak in oil production, but this time it will be a global peak. It is important to have alternative energy resources available for human use so that when this new peak hits, we have the energy resources to keep the infrastructure of our societies operating.

The goal of today’s game is to use a model of an energy system to see how important renewable resources are so that our country (represented by the paper bag) does not run out of energy (represented by the beads).

### Procedure

Before class:

• Count out the colored beads and put them into bags for each group.
• Organize the rest of the materials for each group.
• Make copies of the Renew-a-Bead Game Worksheet, one per student.

With the students:

1. Divide the class into groups of two students each. Distribute the materials.

2. Provide context and kick off the game by presenting the Introduction/Motivation content.

3. Make sure students understand that the bag and beads are intended to represent a country and its energy resources mix; we call this a model.

4. Expect students to be able to follow the worksheet instructions and complete the tasks.

5. Class discussion: Regroup and compare answers among the different "countries." Discuss results and takeaways. Suggested questions and topics to cover:

• What happened to the black beads? (The non-renewable energy units were all used up! Relate this to the importance of a country obtaining some renewable energy resources, given that present fossil fuel reserves will inevitably be used up at some point in the future.)
• Looking ahead, what advice would you give to a country that is making plans so it has enough future energy resources? (Many possible answers. One possible solution to our current energy situation is to use of more renewable resources now, rather than mostly non-renewable energy resources. If fossil fuels are limited, what is our smartest use of them?)
• What is a model? What was the model in today's game? What do the game components represent? (The renew-a bead game is an example of modeling. Scientists and engineers often make models to help them understand situations, discover issues and problems, and find alternatives, improvements and solutions. Talk about how modeling is used in your research and/or classes.)
• As a class, review students' completed Fossil Fuel Graphing Homework, which was assigned in the associated lesson, Energy Resources and Systems.
• Go over the graphs and results as a class.
• Discuss the inevitable demand/ supply problem that we will face with fossil fuels because they are non-renewable.
• Discuss uncertainties: We do not know when we will face these problems, but it will likely be in students' lifetimes.

### Assessment

Worksheet: At activity end, have students hand in their data tables and answers to the worksheet discussion questions for teacher review.

### Other Related Information

This activity was originally published by the Clarkson University K-12 Project Based Learning Partnership Program and may be accessed at  http://internal.clarkson.edu/highschool/k12/project/energysystems.html.

### Contributors

Susan Powers; Jan DeWaters; and a number of Clarkson and St. Lawrence University students in the K-12 Project Based Learning Partnership Program

### Supporting Program

Office of Educational Partnerships, Clarkson University, Potsdam, NY

### Acknowledgements

This activity was developed under National Science Foundation grant nos. DUE 0428127 and DGE 0338216. However, these contents do not necessarily represent the policies of the National Science Foundation, and you should not assume endorsement by the federal government.