Science Matter Test

Question 0

Atoms

Answer 0

1. Tiniest particles of matter
2. Building blocks of matter
3. Same properties as matter
4. smallest part of element
5. Found in nucleus
6. Never seen before

Question 1

Review mass weight volume density flashcards!!!!

Answer 1

Nitya

Question 2

Matter

Answer 2

Anything that takes up space and has mass.

Question 3

Protons

Answer 3

Positively charged

Found in nucleus

Question 4

What is chemistry

Answer 4

Study of matter

Question 5

Special properties

Answer 5

Shape, size, color, oror

Question 6

Electron

Answer 6

Negatively charged

Circles the nucleus in an electron cloud

Question 7

Molecule

Answer 7

All matter Is made of molecules

Must be chemically joined together

Question 8

Elements

Answer 8

Can’t be broken down
Made of one kind of atom
Can’t be simplified

Question 9

Compound

Answer 9

Diff atoms joined to form molecules
Made of many molecules
Have formulas

Question 10

Mixtures

Answer 10

No chem. reaction
2+ subs., compounds, or both
No symbols or formulas
Properties are not always the same

Question 11

Analogy:
Smallest amount of ice cream?
2+ scoops of same IC
Diff flavors of IC
List of IC

Answer 11

Smallest scoop of IC= atom
2+ scoops of same IC is molecule
Diff flavors of IC is compound
List of IC is elements

Question 12

Conservation of matter

Answer 12

Matter cannot be created or destroyed, it can only change its form

Question 13

How many elements in the periodic table

Answer 13

109

Question 14

General properties

Answer 14

Mass, weight, volume, density

Question 15

How many elements made by nature and scientists

Answer 15

90 from nature, 19 by man

Question 16

What is solubility?

Answer 16

The ability of a liquid( solvent) to dissolve a substance(solute)

THE ABILITY FOR A SUBSTANCE TO DISSOLVE IN ANOTHER SUBSTANCE

Question 17

What is a solution?

Answer 17

A mixture with the dissolved substance or solute and the solvent
A mix of 2 subs.

Question 18

What is a solvent?

Answer 18

A solvent is a liquid which dissolves a substance.

It usually has a greater amount

Question 19

Dependent variable

Answer 19

What is observed, measured
Effect of independent variable
Data
WHAT DO I MEASURE

Question 20

Solute?

Answer 20

It is the substance that dissolves in the solvent to form a solution

Question 21

What are the 4 states of matter?

Answer 21

Gas
Liquid
Solid
Plasma

Question 22

What is a phys. Chan

Answer 22

Doesn’t change substances chemical identity
THE FORM OR APPEARANCE OF MATTER CHANGES, BUT NOT ITS COMPOSITION. DOES NOT FORM NEW SUBSTANCE!!!
Reversible change
Same materials

Question 23

Chem. properties?

Answer 23

Reactivity is subs. Reacting to each other

Flammability is how easily a sub. Burns when exposed to fire

Question 24

What is the Periodic Table?

Answer 24

Chart that classifies all the elements and their symbols in a way that is easy to understand

Question 25

Neutron

Answer 25

No charge | Found in nucleus

Question 26

Control variable

Answer 26

Things that could change but don't Kept constant or the same Allows for fair test WHAT STAYS THE SAME

Question 27

Name some chem. change indicators

Answer 27

``` Heat, energy or light Color Odor New substance Change in mass Gas produced ```

Question 28

Scientific process

Answer 28

``` Question Observation Prediction, hypothesis Materials Procedure, safety rules Results Conclusion Reflection ```

Question 29

Independent variable

Answer 29

What is tested by the scientist | WHAT IS CHANGED (by scientist)

Question 30

Chem change

Answer 30

Irreversible Forms new substance 2+ chem. change indicators

Question 31

Suspension

Answer 31

Occurs when particles don't dissolve | Mixture turns cloudy

Question 32

Speed of molecules and arrangement of gas

Answer 32

Very very fast | Spread out

Question 33

Speed of molecules and arrangement of solid

Answer 33

Very very slow | Compact and close together

Question 34

Speed of molecules and arrangement of liquid

Answer 34

Moderate speed | Random spread in between liquid and gas

Question 35

Saturated

Answer 35

2 much dissolving in one substance | There is still the substance left at the bottom

Question 36

How does a substance change form

Answer 36

Energy

Question 37

Universal solvent

Answer 37

Water

Question 37

How do particles move When heated

Answer 37

Faster

Question 37

Density of water? | What will float/sink?

Answer 37

D= 1g/ml^3 Greater density. Sink Lower density. Float

Question 37

What's released during chem. reaction?

Answer 37

Energy

Question 38

Soluble

Answer 38

Solid that dissolves in a liquid