Put primary sources in your students’ hands with these free ebooks . Interactive tools let students zoom in, draw to highlight details, and conduct open-ended primary source analysis.
The internal walls in a home don’t contain any insulation. Of course, if you are building a home, you could add this as part of your emergency planning. Even without insulation, these walls will help retain the heat somewhat, as a bare wall has some insulation value. Doorways that don’t have doors in them can be covered by blankets, making the blanket into a temporary “door.”
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EPA protects human health and the environment from unnecessary exposure to radiation by setting protective limits, providing technical advice, and preparing for and responding to radiological emergencies.