{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Akwankyerɛ

This formative explores five real U.S. presidential monuments (Lincoln Memorial, Washington Monument, Mount Rushmore, Jefferson Memorial, Franklin D. Roosevelt Memorial). Students will identify materials, describe material properties, explain processes that break down stone and metal, and evaluate real-world preservation strategies used by conservators.

Ɛhia

1

Lincoln Memorial — What is the primary building material used for the Lincoln Memorial’s exterior columns and statue base?

Marble

Granite

Cast iron

Bronze

Ɛhia

1

Lincoln Memorial — True or False: Acid rain and pollution can cause marble to darken and develop surface staining over time.

Nokorɛ

Ɛnyɛ ampa

Ɛhia

1

Washington Monument — Which two processes most commonly contribute to cracking and surface damage in large stone obelisks like the Washington Monument?

Freeze–thaw cycles

Thermal expansion and contraction

Termite infestation

Bronze corrosion

Ɛhia

1

Washington Monument — Two-word short answer: What caused the visible color difference partway up the Washington Monument where repairs used different quarry stone?

Ɛhia

1

Mount Rushmore — Why was granite a good choice for carving the faces on Mount Rushmore?

Granite is highly resistant to erosion and is very durable.

Granite is softer than marble and easier to carve.

Granite absorbs water and therefore resists weathering.

Granite quickly develops a protective green patina.

Ɛhia

1

Mount Rushmore — Which preservation strategy helps limit water penetration and freeze–thaw damage on granite monuments?

Improving drainage around the monument and sealing joints

Painting the stone with waterproof paint

Adding metal cladding over the carved face

Regularly applying oil to the surface

Ɛhia

1

Jefferson Memorial — Which two environmental conditions contribute most to biological growth (algae, moss) and staining in the Jefferson Memorial’s marble rotunda?

High humidity and shade

Frequent wetting from rain or condensation

Constant direct sunlight all day

Low temperatures below freezing year-round

Ɛhia

1

Jefferson Memorial — Which real-world preservation step is commonly used to reduce staining and biological growth on marble monuments?

Controlling water runoff and reducing pooled water near the structure

Sealing the marble permanently with cement

Replacing all marble with synthetic stone

Allowing natural weathering without intervention

Ɛhia

1

Franklin D. Roosevelt Memorial — Which two statements about bronze sculpture preservation are correct?

A stable bronze patina can act as a protective layer and is sometimes left in place.

Corrosion of bronze produces green-blue layers called patina and always must be fully removed.

Conservators use careful cleaning and protective wax coatings to slow further deterioration.

Bronze should be sandblasted regularly to keep it shiny.

Ɛhia

1

Franklin D. Roosevelt Memorial — In one short paragraph, explain why conservators sometimes leave a stable bronze patina on outdoor sculptures rather than removing it, and name one preservation method used to protect bronze surfaces.

Materials & Preservation of Presidential Monuments — Grades 6–8

Materials & Preservation of Presidential Monuments — Grades 6–8

Lincoln Memorial — What is the primary building material used for the Lincoln Memorial’s exterior columns and statue base?

Lincoln Memorial — True or False: Acid rain and pollution can cause marble to darken and develop surface staining over time.

Washington Monument — Which two processes most commonly contribute to cracking and surface damage in large stone obelisks like the Washington Monument?

Washington Monument — Two-word short answer: What caused the visible color difference partway up the Washington Monument where repairs used different quarry stone?

Mount Rushmore — Why was granite a good choice for carving the faces on Mount Rushmore?

Mount Rushmore — Which preservation strategy helps limit water penetration and freeze–thaw damage on granite monuments?

Jefferson Memorial — Which two environmental conditions contribute most to biological growth (algae, moss) and staining in the Jefferson Memorial’s marble rotunda?

Jefferson Memorial — Which real-world preservation step is commonly used to reduce staining and biological growth on marble monuments?

Franklin D. Roosevelt Memorial — Which two statements about bronze sculpture preservation are correct?

Franklin D. Roosevelt Memorial — In one short paragraph, explain why conservators sometimes leave a stable bronze patina on outdoor sculptures rather than removing it, and name one preservation method used to protect bronze surfaces.

Lincoln Memorial — What is the primary building material used for the Lincoln Memorial’s exterior columns and statue base?

Lincoln Memorial — True or False: Acid rain and pollution can cause marble to darken and develop surface staining over time.

Washington Monument — Which two processes most commonly contribute to cracking and surface damage in large stone obelisks like the Washington Monument?

Washington Monument — Two-word short answer: What caused the visible color difference partway up the Washington Monument where repairs used different quarry stone?

Mount Rushmore — Why was granite a good choice for carving the faces on Mount Rushmore?

Mount Rushmore — Which preservation strategy helps limit water penetration and freeze–thaw damage on granite monuments?

Jefferson Memorial — Which two environmental conditions contribute most to biological growth (algae, moss) and staining in the Jefferson Memorial’s marble rotunda?

Jefferson Memorial — Which real-world preservation step is commonly used to reduce staining and biological growth on marble monuments?

Franklin D. Roosevelt Memorial — Which two statements about bronze sculpture preservation are correct?

Franklin D. Roosevelt Memorial — In one short paragraph, explain why conservators sometimes leave a stable bronze patina on outdoor sculptures rather than removing it, and name one preservation method used to protect bronze surfaces.