Iowa DOT's policy is to be
sensitive to the environment
and foster and enhance
environmental stewardship.

IOWA DEPARTMENT OF TRANSPORTATION

Presents

Unit 1 Activity - What is limestone used for?

Introduction - Limestone is the most used mineral extracted from beneath Iowa's top soil. The following worksheet provides some uses of limestone.

Directions - Students should complete the following sentences by writing in the correct word from the word list.

Limestone uses include:

1. Granular surfacing of roads and parking lots.
Most "_________________" roads are actually limestone.

2. Limestone is used to control water __________________.

3. Settling our stomachs, as the main _______________ in Rolaids, Tums and Mylanta.

4. Limestone is used as an __________________ in asphalt, portland cement concrete.

5. ____________________, which neutralizes acid soil on our farm fields, lawns and golf courses.

6. As a ____________________ for paved roads, driveways and parking lots.

7. ________________________in feed for livestock.

8. The manufacturing of ___________________.

9. __________________________the water we drink.

10. Part of athletic tracks, ____________ paths and tennis courts.

Word List:

TOP