scince

Question 1

matter

Answer 1

Anything that has mass and takes up space. (Earth, air, fire, water, etc…)

Question 2

atoms

Answer 2

Small particle – building block of matter

Question 3

info

Answer 3

Neutrons are neutral and they live in the nucleus
2. Protons (+) live in nucleus & Electrons (-) orbit around the nucleus
3. They determine the properties of the matter they compose
4. A million times smaller than the diameter of a human hair

Question 4

substances

Answer 4

Matter with a composition that is always the same

Question 5

elements

Answer 5

A substance that consists of just one type of atom (aluminum, hydrogen, oxygen)

Question 6

compounds

Answer 6

A type of substance containing atoms of two or more different elements chemically bonded together (CO2 , H2O)

Question 7

mixtures

Answer 7

Matter that can vary in composition

Question 8

info about mixtures

Answer 8

Heterogeneous Mixture would be like a salad
2. Homogeneous Mixture would be like orange juice
3. Solvent: The majority of the mixture (water usually)
4. Solute: The other substances in a solution (sugar, orange pulp, etc…)

Question 9

Compounds

Answer 9

Two or more types of atoms bonded together
2.properties are different from the properties of the elements that make it up
3. Each compound has a chemical formula
4. Water is a compound

Question 10

Solutions

Answer 10

Are evenly mixed, and two samples from a solution will have the same amount of each substance
Example salt water
Also a solution is also called homogeneous mixture

Question 11

Properties:

Answer 11

the arrangement of atoms also determines the properties of different types of matter.

Question 12

Physical properties

Answer 12

is a characteristic of matter that you can observe or measure without changing the identity of the matter

Question 13

States of matter:

Answer 13

Solid, liquid, gas (SLG)
Those 3 are states of matter
Substances and mixtures can be SLG

Question 14

Aluminum =

Answer 14

element / solid

Question 15

Water =

Answer 15

compound / liquid

Question 16

Air =

Answer 16

mixture / gas

Question 17

more info to know

Answer 17

Some physical properties, such as mass and volume, depend on the size or amount of matter.

Question 18

Mass:

Answer 18

is the amount of matter in an object

Question 19

info about mass

Answer 19

Mass is the amount of matter in something
But weight is the pull of gravity on the matter ( make sure you know the difference)
The larger dumbbells have greater mass than the smaller ones because they contain more matter

Question 20

Volume:

Answer 20

it is a physical property that depends on the size or the amount of a substance is volume. Also is the amount of space something takes up

Question 21

Size independent Properties:

Answer 21

Size independent properties are melting point, boiling point, density, electric conductivity, and solubility
When a solid changes to a liquid that is the melting point.
From a liquid to the gas that is the boiling point
Doesn’t matter how much water is in the container it matters how hot it is

Question 22

Density:

Answer 22

is the mass per unit volume of a substance. Also Melting point and boiling point, density is a size-independent property.

Question 23

Conductivity:

Answer 23

Another property that is independent
Electrical conductivity is the ability of matter to conduct, or carry along, an electric current

Question 24

Solubility:

Answer 24

is the ability of one substance to dissolve in another

Question 25

info about solubility

Answer 25

For example the powdered drink mix is soluble in water, but sand is not. Conductivity and solubility can be used to identify objects and separate mixtures.

Question 26

Bonds:

Answer 26

A force between atoms or groups of atoms