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Fossil Fuels and the Carbon Cycle

Author(s): Roberta Anding, MS, RD/LD, CDE
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Comparing Sizes of Microorganisms

In this activity, students compare the relative sizes and shapes of different types of microbes by creating scale models. They will use punctuation—a period printed on a strip of text—as a visible frame of reference.


Funded by the following grant(s)

National Institute of Environmental Health Sciences, NIH

National Institute of Environmental Health Sciences, NIH

My Health My World: National Dissemination
Grant Number: 5R25ES009259
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698, R25ES06932


Houston Endowment Inc.

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