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Unit 1 and 2 review

Total questions: 62

Worksheet time: 43mins

Name
Class
Date
1.

Which of the following is a compound?

a)

Si

b)

CO2

c)

Cl

d)

He

e)

Ti

2.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
3.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
4.
Is melting ice a chemical or physical change?
a)
chemical
b)
physical
5.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
6.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
7.
Salt dissolves in water
a)
physical Change
b)
chemical change
8.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
9.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances. 
b)
rusting
c)

changes affecting the form of a chemical substance, but not its chemical identity.

d)
any property that is measurable, whose value describes a state of a physical system
10.

What is a chemical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

11.

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

a)

The powder DISSOLVED in the water

b)

The water turned the COLOR yellow

c)

The bag's TEMPERATURE changed

d)

The STATE OF MATTER changed

12.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

Boiling water bubbles when heated

13.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Boiling water bubbles when heated

d)

Salt dissolves in water

14.

Which observations prove a chemical change occurred ?

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

15.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: precipitate

c)

Physical change: freezing

d)

Chemical change: rust

16.

You mix two liquids together, bubbles form and the temperature decreases. This is a....

a)

Endothermic chemical change

b)

Exothermic chemical change

c)

Physical Change

17.

You mix a red liquid and a white solid together. They turn yellow and the temperature increases. This is a...

a)

Endothermic chemical change

b)

Exothermic chemical change

c)

Physical Change

18.

You mix a yellow powder and a clear liquid. The liquid turns light yellow and the powder seems to disappear. This is a...

a)

Endothermic Chemical Change

b)

Exothermic Chemical Change

c)

Physical Change

19.
Which one of these is a chemical property?
a)
melting point
b)
boiling point
c)
color
d)
flammability
20.

Release of light, temperature change, sudden color change, sudden appearance of a solid, and gas given off are all evidence of what?

a)

chemical change

b)

physical change

c)

matter disappearing

d)

physical and chemical changes occurring

21.

Cutting, crushing, melting, and boiling are all examples of what?

a)

physical changes

b)

chemical changes

c)

messes

d)

Law of Conservation of Particles

22.

Which of the following choices describes luster?

a)

how hard a mineral is

b)

how malleable a mineral is

c)

how a mineral reflects light

d)

how a mineral conducts electricity

23.

Which of the following choices describes conductivity?

a)

how hard a mineral is

b)

how malleable a mineral is

c)

how a mineral reflects light

d)

how a mineral transfers heat and electricity

24.

What are the physical properties of metals, nonmetals, and metalloids?

a)

luster, conductivity, and malleability

b)

shine, conductivity, and luster

c)

conductivity, metal, and iron

25.

Which describes malleability?

a)

cannot be beaten into a shape

b)

can be beaten into a shape

c)

shiny

d)

dull

26.

What am I?

a)

Periodic Table

b)

Periodic Table of Compounds

c)

Period Table of Elements

27.

I am shiny and a good conductor of heat.

a)

metals

b)

nonmetals

c)

metalloids

28.

I am dull... Which element am I?

a)

metals

b)

nonmetals

c)

metalloids

29.

I am a bad conductor of electricity and heat.

a)

metals

b)

nonmetals

c)

metalloids

30.

I am malleable, but do not have a shiny luster

a)

metals

b)

nonmetals

c)

metalloids

31.

I am a good conductor of electricity and am malleable.

a)

metals

b)

nonmetals

c)

metalloids

32.

I can be found on the stair-step line on The Periodic Table of Elements.

a)

metals

b)

nonmetals

c)

metalloids

33.

I can be found to the right of the stair-step line on The Periodic Table of Elements.

a)

metals

b)

nonmetals

c)

metalloids

34.

I can be found to the left of the stair-step line on The Periodic Table of Elements.

a)

metals

b)

nonmetals

c)

metalloids

35.

I have properties of both metals and nonmetals.

a)

metals

b)

nonmetals

c)

metalloids

36.

Luster

a)

how an object reflects light

b)

can be hammered into a shape

c)

transfers heat and/or electricity

37.

Conductivity

a)

how an object reflects light

b)

can be hammered into a shape

c)

transfers heat and/or electricity

38.

Malleability

a)

how an object reflects light

b)

can be hammered into a shape

c)

transfers heat and/or electricity

39.

Luster, Conductivity, and Malleability

a)

elements on the Periodic Table of Elements

b)

physical properties

c)

compare

40.

Which elements are to the right of the zig zag?

a)

metals

b)

nonmetals

c)

metalloids

d)

metalloids and nonmetals

41.

Which element is above the element Strontium?

a)

Calcium

b)

Rubidium

c)

Yttrium

d)

Barium

42.

Which of the following is not true.

a)

Potassium= K

b)

Silver= Ag

c)

Sodium= S

d)

Bromine= Br

43.

Carbon is a type of

a)

Metal

b)

Element

c)

Nonmetal

d)

Metalloid

44.

The Periodic Table of Elements has 3 main types of elements. Which type of element is the most abundant?

a)

Helium

b)

Nonmetals

c)

Metalloids

d)

Metals

45.

Which of the following is true?

a)

Gold= Go

b)

Lead= Pb

c)

Scandium= Sm

d)

Oxygen= O

46.

According to your Periodic Table of Elements, how many metalloids are currently known?

a)

2

b)

4

c)

6

d)

8

47.

How many metalloids are found in the row that starts with the element Rb?

a)

14

b)

2

c)

4

48.

Which of the following represents an element?

a)

H2O

b)

HCl

c)

NaCl

d)

Au

e)

CaCO3

49.

Which of the following could be a symbol on the periodic table of elements?

a)

CC

b)

Cc

c)

cc

d)

CcC

e)

CK1

50.

What is NOT made up of two or more elements that are chemically combined?

a)

Element

b)

Compound

c)

Mixture

d)

Solid

e)

Liquid

51.

Which of the following is an element?

a)

Gold

b)

Air

c)

Water

d)

Carbon Dioxide

e)

Nitrous Oxide

52.

How many elements are there in CuSO4?

a)

1

b)

2

c)

3

d)

4

e)

5

53.

__ is a pure substance containing two or more kinds of atoms.

a)

Element

b)

compound

c)

mixture

d)

solution

54.

One group is typically described as containing materials that are exvellent conductors of electricity, ductile and lustrous. Which of the following groups can be classified by thess characteristics?

a)

metals

b)

nonmetals

c)

elements

d)

compounds

55.

An element is a ___ that cannot be separated into simpler substances by physical or chemical means.

a)

pure substance

b)

mixture

c)

solution

d)

compound

56.

How many atoms are present in one molecule of glucose, C6H12O6

a)

3

b)

12

c)

24

d)

4

57.

Which of the diagrams below represent a mixture?

a)

A

b)

B

c)

C

d)

D

58.

This picture represents which of the following?

a)

element

b)

compound

59.

This picture represents which of the following?

a)

element

b)

compound

60.
What is the chemical symbol for Chlorine?
a)
Cl
b)
Ch
c)
Cr
d)
Ce
61.
What is the chemical symbol for Potassium?
a)
Po
b)
K
c)
H
d)
P
62.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical

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