The Science Quiz | Unusual materials

Questions:

1. This materials is likely one of the lightest solids identified, since greater than 99% of its composition by quantity is air. Making it includes extracting the liquid element of a selected sort of semisolid by supercritical freezing. Name it.

2. In the Nineteen Seventies, a British hairdresser named Maurice Ward developed a cloth his granddaughter referred to as ________. He claimed, and which some impartial exams upheld, that it may face up to excessive warmth, though makes an attempt to make use of it to line induction furnaces failed. Fill within the clean.

3. This materials is the world’s second most used after water. While it is extremely sturdy, it has low tensile power and is thus liable to cracking. Over the centuries, students have tried to develop “self-healing” variations of this materials, together with, most lately, bacteria-based efforts. Name the fabric.

4. In the 1986 Star Trek movie ‘The Voyage Home’, two characters commerce a method for clear aluminium in return for different gadgets. Name the ceramic compound of the metallic that’s truly clear, and has additionally been proven to resist armour-piercing bullets.

5 Like graphene, a one-atom layer of bonded carbon atoms, stanene is a layer of ___ atoms. This sheet is of curiosity to materials scientists as a result of it’s anticipated to be a topological insulator, i.e. in a position to conduct electrical energy solely alongside its floor. Fill within the blanks.

Visual:

This component joins Cs, Rb, and Hg as a non-radioactive metallic close to room-temperature in addition to Si, Ge, Bi, and Pu as parts whose liquid types are denser than their stable types. Name it.

Answers:

1. Aerogel

2. Starlite

3. Concrete

4. Aluminium oxynitride

5. Tin

Visual: Gallium