Crystals & Polymers Quiz

What is a crystal?

• A pure material that can’t be changed.

• Material with a regular,repeating arrangement of atoms.

• A foggy like material.

3-dimensional, repeated patterns make up _____.

• Polymers

• Crystals

• Simple Molecule

• Extended Structure

Tags

NGSS.MS-PS1-1

 

If you were to look at grains of table salt (sodium chloride, NaCl) with a magnifying glass, you would see that each grain is a little cube. Why are salt grains cubical?

• All extended structure compounds form cubes.

• Sodium and chlorine atoms both have cubical shapes.

• In the extended structure of NaCl, atoms are arranged in a cubical pattern.

• A molecule of NaCl contains eight atoms, each at one of the corners of a cube.

Tags

NGSS.MS-PS1-1

This is an example of a 

• Polymer

• Crystal

• Box

• Atom

Tags

NGSS.MS-PS1-1

Polymers are made of repeating molecules in a _____

• 3-dimensional shape

• chain formation

_______ form as a result of repeated patterns of atoms or molecules..

• Simple Molecule

• Polymer

• Crystal

• Extended Structure

Tags

NGSS.MS-PS1-1

A long chain of smaller, repeating molecules bonded together.

• Repeat unit

• Ion

• Polymer

• Monomer

Tags

NGSS.MS-PS1-1

Which of these statements is true of a polymer?

• The subunit is always an atom.

• The subunit is always a molecule.

• Polymers cannot extend forever.

• The subunit can be a molecule or an atom.

Which sentence describes this substance (a diamond)?

• An extended structure made of the same element.

• An extended structure made of molecules that are attracted to each other.

• A simple molecule made of different elements.

• An extended structure made of different elements.

Tags

NGSS.MS-PS1-1

One difference between a polymer and a crystal is that...

• A crystal is a two-dimensional structure

• A crystal is a three-dimensional structure

• A polymer is a three-dimensional structure