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What Is a One Part Per Million Solution?

Author(s): Nancy P. Moreno, PhD, Barbara Z. Tharp, MS, and Judith Dresden, MS.

Science Safety Considerations

It is important that students always think about safety when conducting science investigations. This slide may be used to review safety with students prior to beginning. 

  • Always follow your district’s school safety guidelines.
  • Have a clear understanding of the investigation in advance (practice any investigation with which you are not familiar before conducting it with the class).
  • Make sure appropriate safety equipment (e.g., safety goggles) is available.
  • Continually monitor the area where the investigation is being conducted.

Safety note: Caution students to be careful when handling food coloring as it can stain hands, clothes, work surfaces and equipment.


Funded by the following grant(s)

National Institute of Environmental Health Sciences, NIH

National Institute of Environmental Health Sciences, NIH

The Environment as a Context for Opportunities in Schools
Grant Numbers: 5R25ES010698, R25ES06932


Houston Endowment Inc.

Houston Endowment Inc.

Foundations for the Future: Capitalizing on Technology to Promote Equity, Access and Quality in Elementary Science Education