Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Science (7+8 Grade) > Matter (8th Grade Unit Test) > Flashcards

Matter (8th Grade Unit Test) Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Physical property

A

A property of matter that can be observed or measured without changing the identity of the matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Chemical property

A

A property of matter that describes a substance based on its ability to change into a new substance with different properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

States of Matter

A

The physical forms when which a substance can exist: states include solid, liquid, gas, and plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Solid

A

The state in which matter has a definite shape and volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Liquid

A

A state in which matter takes the shape of its container and has definite volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Gas

A

The state in which matter changes both in shape and volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Plasma

A

The state of matter that does not have a definite shape or volume and his particles a broken apart; plasma is composed of electrons in positively charged ions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Element

A

A pure substance that cannot be separated or broken down by into simpler substances using physical or chemical means

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Pure Substance

A

A substance in which there is only one type of particle; includes elements and compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Compound

A

A pure substance composed of two or more elements that are chemically combined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Mixture

A

A combination of two or more substances that are not chemically combined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Solution

A

A mixture that appears to be a single substance that is composed of particles of two or more substances that are distributed evenly amongst each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Solute

A

The substance that is dissolved to form a solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Solvent

A

The substance in which a solute is dissolved to form a solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Concentration

A

A measure of the amount of solute dissolved in a solvent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Solubility

A

The ability to dissolve in another substance; more specifically, the amount needed to make a saturated solution using a given amount of solvent at a certain temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Suspension

A

A mixture in which particles of the material or dispense throughout a liquid or gas but are large enough that they settle out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Colloid

A

A mixture where the particles are dispersed throughout but are not heavy enough to settle out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Kinetic Theory Of Matter

A

The theory that all matter is made up of tiny particles that are in constant motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Thermal Expansion

A

The increase in volume of a substance due to the increase in temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Density

A

The amount of matter in a given space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Atom

A

The smallest particle in which an element can be divided and still be the same substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Acid

A

Any compound that increases the number of hydrogen ions when dissolved in water and whose solution taste sour and can change the color of certain compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Base

A

Any compound that increases the number of hydroxide ions when dissolved in water and who’s solution taste better, feel slippery, and can change the color of certain compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Conductivity

A

A measure of the ability of a given substance to conduct electric current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Organic compound

A

A covalent compound composed of carbon based molecules

27
Q

pH

A

Stands for: potential hydrogen. A measure of hydronium ion concentration in a solution; a pH of seven is neutral; pH less than seven is acidic; a pH greater than seven is basic

28
Q

Salt

A

An ionic compound formed from the positive ion of a base and a negative ion of an acid

29
Q

Combustibility/combustion

A

The burning of fuel; the process in which field combines with oxygen in a chemical change it produces thermal energy

30
Q

Reactivity

A

The relatives capacity of an Atom, molecule, or radical to undergo a chemical reaction with another Atom, molecule, or compound

31
Q

Acidity

A

The level of acid in substances (pH lower than 7)

32
Q

Basicity

A

The level of base in substances (pH higher than 7)

33
Q

What can be used to identify unknown substances?

A

Characteristic properties

34
Q

Give an example of a physical property

A 
Shape
Solubility 
Density
Odor 
Melting Point 
Boiling Point 
Color
35
Q

Give an example of a chemical property

A 
Acidity 
Basicity
Combustibility
Reactivity 
Flammability
36
Q

Volume

A

The amount of space taken up by an object

37
Q

Mass

A

The amount of matter in an object

38
Q

Are mass and weight the same or different?

A

DIFFERENT

39
Q

What is the difference between mass and weight?

A

Weight it the measure of gravitational force, and mass is the amount of matter in you.

40
Q

What is mass measured in?

A

Grams (g)

41
Q

Does your mass change on the moon?

A

No

42
Q

Does your weight change on the moon?

A

Yes

43
Q

How is density calculated

A

D= M/V

Density=Mass over Volume

44
Q

Characteristic properties are always the _____ whether the substance is big or small

A

Same

45
Q

Homogeneous mixture

A

The same appearance and properties throughout the mixture (solutions)

46
Q

Heterogeneous Mixture

A

Do not have the same appearance throughout in the components can be easily seen. (Suspensions and colloids)

47
Q

Is a solution homogeneous or heterogeneous?

A

HOMOGENEOUS

48
Q

Is a suspension homogeneous or heterogeneous?

A

Heterogeneous

49
Q

Is a colloid homogeneous or heterogeneous?

A

Heterogeneous

50
Q

Anything that takes up space is made of _____

A

Matter

51
Q

A ________ is a characteristic of matter

A

Property

52
Q

_________ properties describe how matter changes into a new matter

A

Chemical

53
Q

Color, shape, and texture are ________ properties

A

Physical

54
Q

Matter

A

Anything that has volume and mass

55
Q

________ is the amount of matter in an object

A

Mass

56
Q

The weight of objects is commonly measured on a ______

A

Scale

57
Q

_______ is the amount of space something takes up

A

Volume

58
Q

Volume can be measured in ________ or ___________________

A

Milliliters or cubic centimeters

59
Q

______is the amount of matter per unit of volume

A

Density

60
Q

Density equals mass divided by _______

A

Volume

61
Q

Which state of matter had surface tension

A

Liquid

62
Q

In Which state of matter do the particles vibrate in place?

A

Solid

63
Q

Which state of matter can be used in hydraulic systems

A

Liquid

64
Q

What is the SI Unit for expressing mass?

A

Kilogram

Science (7+8 Grade) (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions