Blount: Cpt.11 Science

Front 1

anything that has mass and occupies space

Back 1

matter

Front 2

Name the 4 characteristics of elements.

Back 2

1. Basic building blocks of matter-made of only one kind of atom.

2. They combine to make up all other kinds of matter.

3. Each element has its own chemical and physical properties.

4. Most elements are metals.

Front 3

Name the 3 characteristics of metals.

Back 3

1. Shiny

2. Bendable

3. Able to conduct heat energy and electricity well.

Front 4

describes how a material reacts to form other materials

Back 4

chemical properties

Front 5

can be measured or observed without changing the material

Back 5

physical properties

Front 6

Give 6 examples of physical properties.

Back 6

color, odor, texture, hardness, density, phase (state) of matter

Front 7

a measure of the pull of gravity on an object

Back 7

weight

Front 8

amount of matter in an object

Back 8

mass

Front 9

amount of space that an object takes up

Back 9

volume

Front 10

An object that takes up more space than another object has a ___________ volume.

Back 10

greater

Front 11

a measure of the amount of matter in a given volume

Back 11

density

Front 12

An object's density is the _____ no matter what shape it is.

Back 12

same

Front 13

tendency of an object to float

Back 13

buoyancy

Front 14

Whether a material floats in liquid depends on the _____ of the liquid. If the object's density is greater than the liquid, it will ______. If the object's density is less than the liquid, the object will ______.

Back 14

density, sink, float

Front 15

smallest particle of an element that has all the properties of the elements

______ move around _______ and _______

Back 15

atom, electrons, neutrons, protons

Front 16

parts of an atom's center that has no electrical charge

Back 16

neutron

Front 17

part of an atom's center that has a positive electrical charge

Back 17

proton

Front 18

part of an atom that has a negative electrical charge

Back 18

electron

Front 19

When two or more atoms are linked together, they form a ________.

Back 19

molecule

Front 20

Name two characteristics of the Periodic Table of the Elements.

Back 20

1. The number above the letter shows the number of protons in the atoms of the elements.

2. Elements in each column share chemical properties.

Front 21

made of two or more elements

Example: Carbon dioxide (CO2) is made of _____ elements, _____ & _________.

Back 21

compound, 2, carbon, oxygen

Front 22

Smallest part of a compound is a _______. Which is made of ____ or more atoms bonded together. A _____ of Carbon dioxide, CO2, contains ____ atoms of ____ and ____ atom of ______.

Back 22

molecule, 2, molecule, 2 oxygen, 1 carbon

Front 23

compounds that include a metal and nonmetal particles in slats arrange themselves in a regular geometric pattern to form crystals.

Back 23

salts

Front 24

definite shape and volume

Back 24

solid

Front 25

has definite volume, no definite shape

Back 25

liquids

Front 26

Most materials get _______ when they cool because the particles have ______ space between them.

Back 26

smaller, less

Front 27

no definite shape or volume

Particles move _____ and are _______ apart than solids or liquids

Back 27

gases, faster, farther

Front 28

particles become a gas

Back 28

evaporation

Front 29

a gas cools and forms (turns into) droplets of a liquid; Dew forms when water vapor ________.

Back 29

condensation, cools

Front 30

The _____ ______ of a liquid is the temperature at which the liquid turns into gas bubbles.

Back 30

boiling point

Front 31

_______ changes a substance from a liquid to a solid.

Back 31

freezing

Front 32

________ changes a substance from a solid to a liquid.

Back 32

Melting

Front 33

_______ changes a substance from a liquid to a gas

Back 33

Boiling

Front 34

combination of 2 or more different kinds of matter, each keeps its own properties; they do not bond (form a ________)

Back 34

mixture, compound

Front 35

Materials in a ____ _____ can be easily separated.

Back 35

simple mixture

Front 36

the materials in a _______ spread out evenly, Example:

Back 36

solution, sugar water solution

Front 37

What are the two parts of a solution?

Back 37

1. Solute-material that dissolves (spreads out), ex.: sugar water

2. solvent-material in which solute water dissolves, ex.: water in sugar water

Front 38

Solutions can be ______, _________, or _______.

Back 38

saturated, concentrated, diluted

Front 39

containing all the solute that can be dissolved without changing the temperature

Back 39

saturated

Front 40

having so much solute that it is close to being saturated

Back 40

concentrated

Front 41

has very little solute, far from being saturated

Back 41

diluted

Front 42

What is solubility (3)?

Back 42

1. physical property

2. amount of substance can be dissolved by a solvent of a certain temperature.

3. Solubility increases as temperature increase; example-hot water can hold more salt than cold water

Front 43

How can salt and pepper be separated from a mixture of salt, pepper, and water (2 steps)?

Back 43

1. Pour the salt, pepper, and water mixture through a filter. The pepper will remain on the filter.

2. Boil the salt water until the water evaporates, leaving the salt.