Quiz #1: Alchemy

Question 1

Hypothesis

Answer 1

a way of explaining an observation

Question 2

Properties

Answer 2

A characteristic or quality of a substance

Question 3

Chemistry

Answer 3

The study of what substances are made of, how they behave, and how they can be transformed. The study of how matter changes

Question 4

Matter

Answer 4

Anything that has substance and takes up space; anything that has mass and volume

Question 5

Mass

Answer 5

how much matter is in an object

Question 6

Volume

Answer 6

how much space the matter takes up

Question 7

Meniscus

Answer 7

the curvature of the top of a liquid in a container

Question 8

Water Displacement

Answer 8

adding a solid to water to see how much the water rises in order to find the volume of that object

Question 9

Density

Answer 9

how tightly packed the matter is

Question 10

Intensive property

Answer 10

a property such as color that doesn’t change with the amount of the substance

Question 11

Extensive property

Answer 11

A characteristic, such as volume or mass, that is specific to the amount of matter and therefore changes if the quantity of the substance changes.

Question 12

Neuroplasticity

Answer 12

the part of your brain that keeps growing as you gain more knowledge.

Question 13

Growth Mindset

Answer 13

the belief that abilities can be developed, and that mistakes are learning opportunities and not failures.

Question 14

Fixed mindset

Answer 14

Belief that your intelligence and abilities cannot be changed.

Question 15

Alchemy

Answer 15

the science of changing substances into other substances; took place in the medieval times and were the precursors to chemists

Question 16

Elements

Answer 16

the building materials of all matter; there are about 118 known elements

Question 17

Chemical symbols

Answer 17

A one or two letter representation of an element

Question 18

Compounds

Answer 18

a pure substance that is a chemical combination of two or more elements in a specific ratio

Question 19

Chemical Formula

Answer 19

a combination of element symbols and numbers representing the composition of a chemical compound

Question 20

Phases

Answer 20

the physical form of matter such as the solid, liquid, or gaseous state

Question 21

Aqueous solution

Answer 21

a solution in which water is the dissolving medium or solvent

Question 22

Chemical changes/reactions

Answer 22

a chemical transformation that alters the composition of one or more substances so that one or more substances with new properties are produced

Question 23

The law of conservation of mass

Answer 23

the law that states that mass can’t be gained or lost in a chemical reaction, and that matter can’t be created or destroyed

Question 24

Dimitri Mendeleyev

Answer 24

alive in the late 1860’s; wanted to find a way to make it easier to remember and understand elements and their chemical behavior

Question 25

Reactivity

Answer 25

how an element or compound combines chemically with other substances, and the speed of their reaction

Question 26

Atomic mass

Answer 26

the mass of a single atom (or isotope) of an element; this is measured in atomic mass units

Question 27

Atomic number

Answer 27

the consecutive whole numbers associated with elements on the periodic table

Question 28

Period

Answer 28

a horizontal row on the periodic table

Question 29

Metal

Answer 29

an element that is generally shiny and malleable and an excellent conductor of heat

Question 30

Nonmetals

Answer 30

an element that does not exhibit metallic properties

Question 31

Metalloid

Answer 31

an element that has properties of both metals and nonmetals