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Hundreds of thousands of boats and ships and the materials and supplies on them have sunk to watery graves since humans first sailed the oceans. Even today, it is common practice for humans to throw their waste into the seas. In the past, much of that material would degrade and/or decompose in the ocean waters. The composition of waste, however, has changed from natural, biodegradable materials to synthetic materials that resist decay. In this Activity, you will observe the breakdown of various materials in water and in sand. Readings

Level

Elementary SchoolMiddle SchoolHigh School

Details

Type Book ChapterPub Date 9/20/2011Stock # PB298X3_18a

NSTA Press produces classroom-ready activities, hands-on approaches to inquiry, relevant professional development, the latest scientific education news and research, assessment and standards-based instruction.

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