Unit 1 Lesson 2-1

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Do Garbage Materials Change in a landfill?

Click here for other teachers’ Lesson 2-1 PPT Resources

1. How do scientists find answers to questions they are wondering about?
2. How do scientists keep records of what they find out?

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Turn & talk:

Planning an Investigation in the Classroom

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1. How could we make a “test landfill” without making a mess in our classroom?
2. What different materials should we investigate?

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As you talk, think about what you know, what you observed about garbage in class, and what you observed in the video.

Turn and Talk:

Discuss in groups:

• What do we put in each landfill bottle?
• What things do we change to compare different landfill bottle systems?

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Planning The Investigation

Just like the real landfill, our landfill bottles will be a system with components.

Let’s record the components we decided to include:

• _____________
• _____________
• _____________

Planning The Investigation

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1. How can we identify a material?

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2. How will we know if a material has changed?

Deciding What Data to Record

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• How do we know if a material has vanished?

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• What does the weight tell you about the material?

Deciding What Data to Record

To keep track of what happens to our garbage in the landfill system, we can record data on:

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1.

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2.

So, what should we record?

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Properties of the materials

Weight of the system

Property and Weight Data

How are these data tables organized?

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How might that organization be helpful in answering our investigation question?

Let’s look at Investigation 2-1: Landfill Bottles Together