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9.88 MB | 14 pages
**Historical Information: Inventor, Date, and who improved on the invention
**What does a hygrometer measure?
**What units does it use to measure?
**How does it work?
**Why is a hygrometer important?
**What are some uses for a hygrometer?
Includes a color trifold, black line trifold, and answer key pdf which can be projected and used as a teaching aid.