Solids_Crashcourse

What is a common misconception about chemicals?

• Chemicals are essential for cooking.

• All chemicals are harmful.

• Chemicals are only found in laboratories.

• Chemicals can only be liquids or gases.

Tags

NGSS.MS-PS1-1

What are the two main classes of solids?

• Metallic and non-metallic

• Crystalline and amorphous

• Liquid and gas

• Organic and inorganic

What does 'amorphous' mean in the context of solids?

• Without a definite shape

• Capable of conducting electricity

• Highly ordered structure

• Composed of a single element

Which of the following is an example of an amorphous solid?

• Ice

• Glass

• Diamond

• Table salt

How do amorphous solids respond to stress?

• They shatter into sharp, straight lines.

• They do not break under any circumstances.

• They become more ordered.

• They break in random, irregular shapes.

What are the three types of crystalline solids based on composition?

• Molecular, ionic, and atomic

• Solid, liquid, and gas

• Organic, inorganic, and metallic

• Amorphous, semi-crystalline, and crystalline

Which type of solid has a very high melting point?

• Metallic solids

• Amorphous solids

• Ionic solids

• Molecular solids

Tags

NGSS.MS-PS3-4

What characteristic allows metals to be malleable and ductile?

• The strength of ionic bonds

• The mobility of valence electrons

• The arrangement of atoms in a rigid structure

• The presence of covalent bonds

What is the main reason metals can conduct heat and electricity easily?

• High melting points

• The sea of electrons

• The presence of covalent bonds

• Their crystalline structure

Tags

NGSS.MS-PS3-3

Which of the following is not a characteristic of crystalline solids?

• They have specific melting points.

• They are generally more brittle than amorphous solids.

• They melt over a range of temperatures.

• Their bonds are of equal length and strength.

Tags

NGSS.MS-PS1-4