construction materials

what is the strongest and lightest material but not used in construction?

• steel

• borophene

• carbon fiber

• brick

• mud

what is the strongest material used in construction?

• steel

• cement

• brick

• mud

what are the steps of making concrete?

• mix cement and water

• mix cement and sand

• mix cement, water, rough aggregate, sand together

• mix cement, water, sand together

what is the density of graphite compare to steel?

• 5%

• 2.5%

• 3%

• 10%

what is the strength of graphite compare to steel

• x 10 stronger

• x 10 weaker

• x 5 weaker

• x 5 stronger

what are materials that suits to make furnitures

• wood, aluminum, glass, cane, acrylic.

• wood, aluminum, cane, acrylic.

• wood, aluminum, glass, cane.

• wood, glass, cane, acrylic.

most skyscrapers are made of (a)   .

can you build a skyscraper from wood

• yes

• no

• we have already built one