1. It costs a dime to look through this Bausch and Lomb high power telescope Library of Congress Prints & Photographs Division Zoom In Inquiry

2. What do we measure?

5. We measure weight. How has measuring weight changed? Unknown. (c1912). [ Baby being weighed by nurse on scale]. Lib rary of Congress: Prints & Photogra phs.[ Baby being weighed by nurse on scale].

8. We measure days, months, and years. How has measuring days, months, and years changed? Ehrgott, Forbriger & Co. (c1865). [C alendar for 1866 - advertisem ent for Phoenix Insurance Company, Hartford, Conn., illustrated with horse- drawn fire engines, building on fire and steamboat on fire]. Librar y of Congress: Prints & Photograph s.[C alendar for 1866 - advertisem ent for Phoenix Insurance Company, Hartford, Conn., illustrated with horse- drawn fire engines, building on fire and steamboat on fire].

11. We measure how long things are. How has measuring length changed? Johnston, F. B. (1899). [Studen ts of 8th Division school using rulers, yardsticks, and measuring tape in school yard, Washington, D.C.]. Library of Congress: Print s & Photographs, F rances Benjamin Johnston Collection.[Studen ts of 8th Division school using rulers, yardsticks, and measuring tape in school yard, Washington, D.C.].

14. We measure time. How has measuring time changed? Rothstein, A. (1937). Clo ck and sign in tavern. Smuggler's Notch, Vermont. Li brary of Congress: Prints & Photograph s, FSA/OWI - Black and White Negatives.Clo ck and sign in tavern. Smuggler's Notch, Vermont.

17. We measure temperature. How has measuring temperature changed? Horydczak, T. (ca.1920- ca.1950). Electric Institute of Washington. Cooking and planning I. Library of Congress: Prints & Photographs, Hor ydczak Collection.Electric Institute of Washington. Cooking and planning I.

18. Measuring is all around us. Can you give an example of where you use measurement?

19. Ehrgott, Forbriger & Co. (c1865). [Calendar for 1866 - advertisement for Phoenix Insurance Company, Hartford, Conn., illustrated with horse-drawn fire engines, building on fire and steamboat on fire]. Library of Congress: Prints & Photographs.[Calendar for 1866 - advertisement for Phoenix Insurance Company, Hartford, Conn., illustrated with horse-drawn fire engines, building on fire and steamboat on fire]. Horydczak, T. (ca.1920-ca.1950). Electric Institute of Washington. Cooking and planning I. Library of Congress: Prints & Photographs, Horydczak Collection.Electric Institute of Washington. Cooking and planning I. Johnston, F. B. (1899). [Students of 8th Division school using rulers, yardsticks, and measuring tape in school yard, Washington, D.C.]. Library of Congress: Prints & Photographs, Frances Benjamin Johnston Collection.[Students of 8th Division school using rulers, yardsticks, and measuring tape in school yard, Washington, D.C.]. Rothstein, A. (1937). Clock and sign in tavern. Smuggler's Notch, Vermont. Library of Congress: Prints & Photographs, FSA/OWI - Black and White Negatives.Clock and sign in tavern. Smuggler's Notch, Vermont. Unknown. (c1912). [Baby being weighed by nurse on scale]. Library of Congress: Prints & Photographs.[Baby being weighed by nurse on scale].