TED-Ed: What is dust made of? - Michael Marder

The video explores the world of dust mites and the composition of household dust, highlighting its unique blend of components like dead skin cells, animal dander, and cosmic particles. It discusses how local geology and industrial activities influence dust composition, making it as unique as a fingerprint. The video also delves into the presence of cosmic dust on Earth, suggesting its potential role in the origins of life.

What is the primary sense that dust mites rely on to find food and safe places?

• Sight

• Hearing

• Smell

• Touch

Which of the following is NOT a common component of household dust?

• Pollen

• Animal dander

• Volcanic ash

• Water vapor

How can the composition of dust be as unique as a fingerprint?

• It varies based on local geology and human activities.

• It contains only human skin cells.

• It is composed solely of cosmic dust.

• It is made up of identical particles worldwide.

What is a significant source of extraterrestrial dust found on Earth?

• Forest fires

• Volcanic eruptions

• Exploding stars

• Ocean waves

What potential role might cosmic dust have played in Earth's history?

• Causing volcanic eruptions

• Forming mountain ranges

• Seeding life on Earth

• Creating ocean currents