1- conservationist
2- The art historian can help advise the archaeologist in excavation, so that artifacts are not damaged.
3- The airtight seal will help prevent decay of the metal due to air exposure.
4- acid-free paper, glass case
5- mold and water damage
6- Conservators and scientists both have a mission to preserve important objects.
7- She will document the deterioration of her portrait over time with photographic images for display.
8- They have survived remarkably well, given their age.
9- the calendar shows the unique way that Aztecs measured the passage of time.
10- Museums place equal importance on artifact display and preservation.
11- Well-meaning conservators actually damaged the works.