Teaching Packet for Grades K—3 PDF Version

PDF format reproduces the look of the printed publication. To view and print the PDF version, you must obtain and install the Acrobat® Reader, available at no charge from Adobe Systems. Note that PDF files tend to be of relatively large size. Downloading such files from the Internet to your computer via modem may take up to several minutes. Additionally, the quality of illustrations in printed PDF documents will generally be lower than that of the original paper document.

The poster is available for purchase through the National Mapping Program.

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This teacher packet was originally available in printed format. The online edition contains full text from the original publication. Some images have been modified or added to improve the scientific visualization of information. All poster text and images are available under the Poster section. A paper copy of the poster is for sale by calling 1-888-ASK-USGS. The Master Sheets and Activity Sheets are in PDF format. The PDF format reproduces the printed publication and will be better for creating overlay and overhead transparencies. To view and print PDF's install the Acrobat Reader, available at no charge from Adobe Systems. This document has undergone official review and approval for publications established by the National Mapping Division, U.S. Geological Survey.