The Element of Surprise - Matter

Question 1

Atom

Answer 1

the smallest part of an element which still has all of the chemical properties of that element

Question 2

Boiling point

Answer 2

A change in which new or different kinds of matter are formed

Question 3

Chemical Property

Answer 3

any characteristic, such as ability to burn, that allows a substance to undergo a change that results in a new substance

Question 4

Chemical symbol

Answer 4

a 1- or 2-letter code for a chemical element, usually derived from the name of the element, often in Latin. Only the first letter is capitalized

Question 5

Compound

Answer 5

when elements combine and are represented by chemical formulas

Question 6

Conductivity

Answer 6

a measure of a material’s ability to conduct an electric current

Question 7

Constants

Answer 7

All factors which are NOT allowed to change during the experiment

Question 8

Control Group

Answer 8

The group (standard) to which everything is compared

Question 9

Density

Answer 9

mass divided by volume

Question 10

Dependent Variable

Answer 10

The variable that responds. What you are measuring. The effect(s), result(s), responding variable, etc.

Question 11

Element

Answer 11

a substance that contains only one type of atom

Question 12

Experimental Group

Answer 12

The group(s) being tested with the independent variable

Question 13

Freezing point

Answer 13

the temperature at which matter changes state from solid to liquid

Question 14

Gas

Answer 14

when matter maintains a fixed volume but adapts to the shape of its container

Question 15

Hypothesis

Answer 15

an educated guess or what you think will happen in an experiment. needs to be written as an “If/Then” statement.

Question 16

Independent Variable

Answer 16

The variable that is change don purpose by the experimenter. The cause, stimulus, reason, manipulated variable, etc.

Question 17

IVCDV Chart

Answer 17

Used to design and organize information before performing an experiment. Shows you how the independent variable(s), dependent variable(s) and constant(s) interact.

Question 18

Liquid

Answer 18

when matter maintains a fixed volume but adapts to the shape of its container

Question 19

Luster

Answer 19

a description of the way light interacts with the surface of a crystal, rock, or mineral

Question 20

Malleability

Answer 20

material’s ability to form a thin sheet by hammering or rolling, ability to to deform under pressure

Question 21

Mass

Answer 21

the amount of matter in an object

Question 22

Matter

Answer 22

anything (solid, liquid, or gas) that has mass and takes up space

Question 23

Melting point

Answer 23

the temperature at which matter changes state from solid to liquid

Question 24

Metal

Answer 24

chemical elements that are a good conductor of both electricity and heat

Question 25

Metalloid

Answer 25

chemical elements showing metallic luster, their other properties vary from element to element, neither metal or non-metal

Question 26

Non-metal

Answer 26

chemical elements which are poor conductors of heat and electricity, in solid form, they are dull and brittle, usually have lower densities than metals

Question 27

Periodic Table

Answer 27

A chart of chemical elements organized by their atomic structures

Question 28

Physical change

Answer 28

change that alters the size, shape or state of an object or substance

Question 29

Physical Property

Answer 29

qualities that can be determined by using your own senses, such as color, shape, taste, smell, and state of matter

Question 30

Precipitate

Answer 30

a solid formed in a solution or inside another solid during a chemical reaction

Question 31

Qualitative data

Answer 31

information that is not in numbers; based on physical properties of a substance or object. Ex., size, color, state of, matter, etc.

Question 32

Quantitative data

Answer 32

information represented in numbers. Ex., 5 inches, 23gms, etc.

Question 33

Reactivity

Answer 33

length of time that it takes for a substance to go through a chemical change with another substance

Question 34

Repeated Trials

Answer 34

The number of times the experiment is repeated. The more times you repeat the experiment, the more VALID your results are

Question 35

Solid

Answer 35

when matter maintains a fixed volume and shape

Question 36

States of matter

Answer 36

solid, liquid or gas forms of matter

Question 37

Variable

Answer 37

Something that changes. There is no such thing as a constant variable.

Question 38

Weight

Answer 38

the measurement of the pull of gravity on an object

Question 39

Name three PHYSICAL CHANGES

Answer 39

1. Aluminum foil is cut in half. 2. Clay is molded into a new shape. 3. Butter melts on warm toast. 4. Water evaporates from the surface of the ocean. 5. A juice box in the freezer freezes. 6. Rubbing alcohol evaporates on your hand.

Question 40

Name three CHEMICAL CHANGES

Answer 40

1. Milk goes sour. 2. Jewelry tarnishes. 3. Bread becomes toast. 4. Rust forms on a nail left outside. 5. Gasoline is ignited. 6. Hydrogen peroxide bubbles in a cut. 7. Food scraps are turned into compost in a compost pile. 8. A match is lit. 9. You take an antacid to settle your stomach. 10. Your body digests food. 11. You fry an egg.

Question 41

comprise

Answer 41

to contain, "is made up of" or "consists of"

Question 42

differentiate

Answer 42

to perceive the difference between two or more things

Question 43

classification

Answer 43

arrangement of animals and plants in groups according to their similarities