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Apollo, the Lunar Dust and NASA's Dirty Problem

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Intro:

Video Vocabulary

/ˈmin(ə)rəl/

noun other

solid inorganic natural substance. Substances naturally formed in the ground.

/ˈsilikən/

noun

chemical element of atomic number 14.

/bämˈbärdmənt/

noun

continuous attack with missiles.

/ˈpräbləm/

adjective noun

Causing trouble. Question to show understanding of a math concept.

/ˈsan(d)ˌpāpər/

noun verb

Paper with glued sand used for smoothing wood. smooth with sandpaper.

/ˈmiSHən/

noun other

political, religious, or commercial assignment. Tasks given to someone to gain or achieve.

/ˈmilyən/

number

1,000,000.

/ˈmēdēəˌrīt/

noun other

piece of rock or metal that has fallen to earth's surface from outer space as meteor. Stony or metallic masses of matter that has fallen to the earth's surface from outer space.

/kənˈtān/

verb

To hold something inside something else.

/ˈastrəˌnôt/

noun other

person who is trained to travel in spacecraft. Person who travels in space.

/ˈdānj(ə)rəs/

adjective

able or likely to cause harm or injury.

/ˈsərfəs/

adjective noun verb

Of the top layer; not deep or meaningful. Top layer of the ground or of water. To come to the top of something; emerge.

/ˈpärdək(ə)l/

noun other

minute portion of matter. Tiny pieces or quantities of some things.

/kənˈtiny(o͞o)əl/

adjective

forming sequence in which same action or event is repeated frequently.

/smôl/

adjective

of size that is less than normal or usual.

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