Beyond the Elements: Indestructible

What is the main ingredient in glass making?

• Sand

• Clay

• Limestone

• Soda ash

Tags

NGSS.MS-PS1-1

At what temperature does pure silica melt?

• 1200°C

• 1600°C

• 2000°C

• 2400°C

Instead of using water, how is commercial tempered glass cooled?

• Air

• Oil

• Ice

• Steam

Silicon is the 2nd most common element in the Earth’s crust. What is the MOST COMMON element?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Both carbon and silicon can form up to how many chemical bonds?

• 2

• 3

• 4

• 5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Where does most of the world’s natural rubber come from?

• Brazil

• India

• Thailand

• China

Approximately how many isoprenes must bond together to form natural rubber?

• 100

• 200

• 300

• 400

During “vulcanization” what element is mixed with rubber?

• Sulfur

• Carbon

• Oxygen

• Nitrogen

Instead of ripping apart like uncured rubber, what happens to vulcanized rubber after it has been stretched?

• It melts

• It returns to its original shape

• It hardens

• It breaks

Due to the vulcanization process, the whole tire is essentially one _______________.

• Molecule

• Compound

• Element

• Mixture