Notes - Introduction

Question 1

Mass

Answer 1

The amount of matter

Question 2

Matter

Answer 2

Anything that has mass and takes up space

Question 3

Atom

Answer 3

Smallest unit of an element that maintains the properties of an element

Question 4

Element

Answer 4

A pure substance that has only on kind of atom (Note: These will be found on the periodic table of elements)

Question 5

Compound

Answer 5

A substance made up of the atoms of two or more elements

Question 6

Extensive Properties

Answer 6

Depends on the amount of matter present (Ex. mass)

Question 7

Intensive Properties

Answer 7

Do NOT depend on the amount of matter (Ex. color)

Question 8

Physical Property

Answer 8

A characteristic that can be observed or measured without changing the identity of a substance (Ex. height, mass, color, smell, etc.)

Question 9

Physical Change

Answer 9

Melting, boiling, grinding, cutting. The substance is still the same substance, but has a changes physical appearance (Ex. water to ice, torn paper, mashed potatoes)

Question 10

Liquid

Answer 10

Definite volume, no definite shape

Question 11

Solid

Answer 11

Definite shape and volume

Question 12

Gas

Answer 12

No definite shape and volume

Question 13

Volume

Answer 13

The amount of 3D space something takes up

Question 14

Molecule

Answer 14

At lease 2 of the SAME element put together (Ex. O2)

Question 15

Compound

Answer 15

At least 2 DIFFERENT elements put together (ex. H2O)

Question 16

Mixture

Answer 16

A blend of two or more kinds of matter which retains its own identity and properties. CAN BE SEPERATED! (be hand, filtration, vaporization, evaporation, etc)

Question 17

Homogeneous Mixture

Answer 17

The same throughout, a solution (lemonade, koolaid, etc)

Question 18

Heterogeneous Mixture

Answer 18

NOT the same throughout, (trail mix, sand, etc.)

Question 19

Paper chromatography

Answer 19

Separate dye mixtures (Lab with markers/ink and paper)

Question 20

Pure Substances

Answer 20

Fixed composition, every sample has exactly the same characteristics and composition. Ex. Elements, compounds like water

Question 21

Colloid

Question 22

Suspension