3 Response provides a general explanation with some detail about why the value of the stamps has increased. Response demonstrates an adequate understanding of supply and demand. 2 Response provides limited explanation about why the value of stamps has increased. Response demonstrates a limited understanding of supply and demand with few details. 1 Response provides minimal explanation about why the value of stamps has increased.
Response is incorrect or irrelevant.
Select one invention and explain how it contributed to an improved understanding of nature and the universe. 4 Response identifies one invention and provides an accurate, clear and in-depth explanation of how the invention contributed to an improved understanding of nature and the universe. 3 Response identifies one invention and provides a general explanation of how the invention contributed to an improved understanding of nature and the universe. 2 Response identifies one invention and provides a limited explanation of how the invention contributed to an improved understanding of nature and the universe. 1 Response identifies one invention and provides a minimal explanation of how the invention contributed to an improved understanding of nature and the universe.