Science test 5

Question 1

Who created the Periodic Table of Elements?

Answer 1

Dmitri Mendeleev

Question 2

Pure Substances

Answer 2

have only one kind of particle

Question 3

Mixtures

Answer 3

are composed of 2 or more Pure Substances

Question 4

Heterogeneous Mixtures

Answer 4

contain different materials that can be seen and felt

Question 5

Heterogeneous Mixtures are often called

Answer 5

Mechanical Mixtures

Question 6

Homogeneous Mixtures

Answer 6

contain different materials that look and feel as if they are one substance

Question 7

Solutions

Answer 7

have one substance mixed into another substance

Question 8

The solvent

Answer 8

is the component that is being mixed into, which is usually the majority of the solution

Question 9

Solute

Answer 9

the component that is being mixed into the Solvent

Question 10

The Solute and Solvent particles will continue to settle into place through

Answer 10

Entropy

Question 11

A Dilute Solution

Answer 11

is a solution with a low concentration of Solutes

Question 12

A Concentrated Solution

Answer 12

is a solution with a high concentration of Solutes

Question 13

An Unsaturated Solution

Answer 13

will have more space between Solvent and Solute particles

Question 14

A Saturated Solution

Answer 14

will have little-to-no space between Solvent and Solute particles

Question 15

A Supersaturated Solution

Answer 15

will have too many Solute particles to fit within the Solvent particles

Question 16

The ________, developed by Friedrich Mohs, rates the hardness of materials based on their ability to scratch other softer materials

Answer 16

Mohs Scale

Question 17

Most metals have two main characteristics:

Answer 17

Malleability, Ductility

Question 18

An _____ is a mixture of two or more metals that form a homogeneous mixture

Answer 18

Alloy

Question 19

Oxidation

Answer 19

occurs when metals are exposed to Oxygen particles, and the Oxygen particles bind with the metal particles

Question 20

Crystals

Answer 20

are solids with Atoms arranged in a repeated pattern

Question 21

Liquid Crystals

Answer 21

exist in a state of matter somewhere between solid and liquid

Question 22

Glass is an ______ because its molecules do not create crystals

Answer 22

Amorphous Solid

Question 23

Glass is a ______

Answer 23

Non-Porous substance,

Question 24

Glass is

Answer 24

Transparent

Question 25

Glass has strong _________

Answer 25

Heat Resistance

Question 26

The rapid loss of heat can allow Glass to be classified as a ___________which prevents it from forming crystals

Answer 26

Supercooled Liquid,

Question 27

Types of glass

Answer 27

Tempered,Laminated, Fiberglass

Question 28

Plastics are materials that have chains of _____

Answer 28

Polymers

Question 29

Organic plastics

Answer 29

Shellac, Latex, Rubber

Question 30

Synthetic Plastics are mainly derived from _____ such as Fossil Fuels

Answer 30

Petrochemicals

Question 31

Types of synthetic plastics

Answer 31

Thermoplastics, Thermosets