Science Chapter 1

Front 1

What is the symbol for Gold?

Back 1

AU

Front 2

What is an element

Back 2

One of more than 100 basic kinds of matter that cannot be broken into smaller pieces through physical or chemical processes

Front 3

definition of physical property?

Back 3

any property of a material that can be seen or measured without changing the material

Front 4

definition of chemical property?

Back 4

any property that describes how it changes into other materials

Front 5

what is one chemical property of wood?

Back 5

it is flammable

Front 6

more than 98% of Earths crust is made up of what?

Back 6

oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium

Front 7

Earths crust has about how many minerals?

Back 7

3,500

Front 8

living things are mostly made up of what elements?

Back 8

carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphurous

Front 9

96% of your body is made up of what elements?

Back 9

carbon, hydrogen, oxygen, and nitrogen

Front 10

examples of physical properties

Back 10

color, luster, hardness, streak, boiling and freezing point, and whether or not a substance dissolves in other substances.

Front 11

the ----- of an object is the amount of matter in the object.

Back 11

mass

Front 12

the ------ of an object is measures the pull of gravity on the object.

Back 12

weight

Front 13

the five most common elements in earths crust are?

Back 13

oxygen, silicon, aluminum, iron, and calcium

Front 14

1 chemical property of water?

Back 14

it's not flammable

Front 15

examples of chemical properties

Back 15

whether it rusts, dissolves when mixed with acid, and flammability,

Front 16

definition of an atomic number

Back 16

number of protons in an atoms nucleus

Front 17

is the atomic number of an atom the single most important property of an element?

Back 17

yes

Front 18

what charge does a neutron have?

Back 18

no electrical charge

Front 19

what charge does a proton have?

Back 19

positive

Front 20

what charge does an electron have?

Back 20

negative charge

Front 21

electrons move around the nucleus...

a. slowly
b. medium speed
c. quickly

Back 21

c. quickly

Front 22

protons and neutrons are...

a. in the nucleus of an atom
b. around the nucleus of an atom

Back 22

a. in the nucleus of an atom

Front 23

definition of a molecule

Back 23

the smallest part of a substance that has the same properties of the substance

Front 24

definition of an atom

Back 24

the smallest particle of an element with the same properties of the element

Front 25

atoms look like...
a. small spheres
b. cubes
c. cones

Back 25

a small spheres

Front 26

the atomic number decreases or increases when you read left to right across the page?

Back 26

increases

Front 27

the atomic number increases or decreases when you read down the table

Back 27

increases

Front 28

every element has a symbol of 1, 2, or 3 letters?

Back 28

one or two

Front 29

the three groups of elements are...

a. metals, nonmetals, & metalloids
b. gases liquids & solids
c. gold silver and neon

Back 29

a. metals, nonmetals and metalloids

Front 30

what are 2 property of nonmetals?

Back 30

they are usually brittle, and bad conductors of hear or electricity

Front 31

what are 2 properties of metals?

Back 31

they are usually solid and are good conductors of heat and electricity

Front 32

do metalloids have properties and metals and nonmetals? yes or no?

Back 32

yes

Front 33

what are two different names for a column?

Back 33

group or family

Front 34

how many columns (groups) are in the periodic table?

Back 34

18

Front 35

the elements in a react in similar ways or different ways when they mix with other substances

Back 35

they react similar

Front 36

what is one different name for a row?

Back 36

a period

Front 37

do the elements in a period have similar of very different properties?

Back 37

very different properties

Front 38

physical properties of metal

Back 38

they are usually hard and shiny, and are malleable, and ductile

Front 39

what does malleable mean?

Back 39

the item does not break when you bend it

Front 40

are metalloids brittle or not?

Back 40

they are brittle

Front 41

can metals be made into wire?

Back 41

yes

Front 42

what does ductile mean?

Back 42

the object can be made into wire

Front 43

are metals ductile?

Back 43

yes

Front 44

are some metals pure?
what are 2 examples?

Back 44

some metals are pure
two examples are gold and copper

Front 45

chemical properties of metals

Back 45

being good conductors of heat and electricity, make metallic bonds, can rust

Front 46

what are alloys

Back 46

alloys are metals that are made of 2 or more elements

Front 47

what is an example of an alloy

Back 47

steel

Front 48

the first element in a period is very reactive or nonreactive

Back 48

very reactive

Front 49

the last element in a row is nonreactive

Back 49

nonreactive

Front 50

what information does the periodic table give you on the elements?

Back 50

the atomic number, the elements name, the atomic number, and the chemical symbol for the element

Front 51

what is the definition of a compound?

Back 51

a kind of matter made of a chemical combination of two or more elements

Front 52

when atoms of two or more elements combine what do they form?

Back 52

compounds

Front 53

when atoms make a compound are the properties of the compounds different or similar to the properties of the atoms?

Back 53

different

Front 54

does every compound have a chemical formula?

Back 54

yes

Front 55

what does the formula tell you?

Back 55

the formula tells you how many atoms are in the compound

Front 56

what does the little number underneath a letter in a formula tell you?

Back 56

how many atoms of that element there are in the formula

Front 57

what % of your body is made of water?

Back 57

60

Front 58

can one element be in many different compounds?
yes or no?

Back 58

yes

Front 59

what does sodium an chlorine make?

Back 59

our common table salt

Front 60

give an example of how the properties of a compound are different then the properties of the atoms that combine to make them

Back 60

table salt is an example because sodium and chlorine make table salt but sodium by itself reacts violently when it is mixed with water and chlorine by itself is a very dangerous gas/liquid

Front 61

how does having opposite charges in salts affect how they look and feel?

Back 61

the negative and positive charges hold the particles together

Front 62

what are 5 properties of salts?

Back 62

1. almost every salt has has at least one metal element and one nonmetal element
2. all salts form crystals
3.when salts dissolve in water they conduct electricity well
4. most salts melt at high temperatures
5. salts dissolve in water

Front 63

what is a crystal made of?

Back 63

a crystal is made of particles that are arranged in regular patterns

Front 64

salts can form when what happens?

Back 64

salts can form when an acid is mixed with a base

Front 65

should you ever taste any chemicals in a science experiment?

Back 65

NO!!!!!

Front 66

do salts have different properties than the elements that make them?

Back 66

yes

Front 67

are blue salts poisonous?

Back 67

yes

Front 68

what is an example of how salt have very different properties than the elements that make them?

Back 68

an example is blue salt it is made of copper, sulfur, and oxygen. but copper is not blue, sulfur is not blue, and oxygen is not blue.

Front 69

what is the definition of a solution?

Back 69

a mixture in which substances are spread out evenly and will now settle

Front 70

do the parts of compounds bond together?
yes or no?

Back 70

yes

Front 71

does a compound have new physical and chemical properties after the parts bond together?

Back 71

yes

Front 72

do parts of a mixture bond together? yes or no?

Back 72

no

Front 73

does each part of a mixture keep there properties? yes or no?

Back 73

yes

Front 74

are the parts of a mixture always have the same amounts? yes or no?

Back 74

no

Front 75

can mixtures be separated?

Back 75

yes

Front 76

can compound be separated?

Back 76

no

Front 77

when you are separating a mixture what do you have to know about the mixtures parts?

Back 77

you have to know their physical or chemical properties

Front 78

can a filter separate a mixture?

Back 78

yes

Front 79

what gets stuck in the filter when you run something through a filter?

Back 79

the biggest parts of the mixture

Front 80

what is the universal solvent?

Back 80

water

Front 81

what is the substance that dissolves called?

Back 81

the solute

Front 82

what is the substance that the solute is dissolving in called?

Back 82

the solvent

Front 83

when salt and water mix what is the solute?
and what is the solvent?

Back 83

the solute is salt and the solvent is water

Front 84

is solubility a physical property?

Back 84

yes

Front 85

what does solubility tell you?

Back 85

it tells you how much of one substance will dissolve in another substance.

Front 86

what does chromatography do?

Back 86

it separate and identifies the parts of a mixture by using solubility of the substance