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Chemistry Unit 1

Total questions: 93

Worksheet time: 57mins

Name
Class
Date
1.

Properties that change based on the amount of the substance is

a)

Extensive Properties

b)

Intensive Properties

c)

Chemical Properties

d)

Real Properties

2.

Properties that do not change based on the amount of the substance is

a)

Extensive Properties

b)

Intensive Properties

c)

Associative Properties

d)

Real Properties

3.
Example for chemical property
a)
malleability
b)
texture
c)
combustion
d)
sour taste
4.

Which is a chemical property?

a)

Reactivity

b)

boiling point

c)

density

d)

conductivity

5.

Conductivity is a

a)

Intensive property

b)

Chemical property

c)

Extensive property

d)

Fake property

6.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
7.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup 
d)
plastic bottle
8.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
9.

Boiling Point

a)

Intrinsic

b)

Extrinsic

10.

Freezing Point

a)

Intrinsic

b)

Extrinsic

11.

Density (an object's mass divided by its volume)

a)

Intrinsic

b)

Extrinsic

12.

Odor

a)

Intrinsic

b)

Extrinsic

13.

Color

a)

Intrinsic

b)

Extrinsic

14.

Volume

a)

Intrinsic

b)

Extrinsic

15.

Mass

a)

Intrinsic

b)

Extrinsic

16.

Mass is the amount of _______ an object has

a)

Matter

b)

weight

17.

The unit for mass is...

a)

Newton

b)

grams

c)

mililiters

d)

centimeters

18.

What is this tool called....

a)

Ruler

b)

Thermometer

c)

Beaker

d)

Graduated Cylinder

19.

A graduated cylinder is used to measure...

a)

Volume

b)

mass

c)

weight

d)

density

20.

The unit for volume is

a)

grams

b)

milliliters (mL)

c)

Newton

d)

Centimeters Cubed

21.

 

What two types of measurements make up DENSITY? 

a)

Volume and Weight

b)

Temperature and Mass

c)

Mass and Volume

22.

What is the density of water?

a)

34 g/mL

b)

1 g/mL

c)

29 g/mL

d)

6 g/mL

23.

Measuring the volume of a block uses which equation

a)

Length ×Width×HeightLength\ \times Width\times Height  

b)

(radius)2×Length×π\left(radius\right)^2\times Length\times\pi  

24.

When measuring the volume of a cylinder , what equation would you use

a)

Width×Length×HeightWidth\times Length\times Height

b)

(radius)2×Length×π\left(radius\right)^2\times Length\times\pi

25.

What is the unit for density ?

a)

g/ mL

b)

g

c)

gcm3\frac{g}{cm^3}  

d)

cm4cm^4  

26.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
27.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
28.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
29.
What is the volume of Object X?
a)

10.0 ml

b)

15.0 ml

c)

20.0 ml

d)

25.0 ml

30.
What is the volume of the fish?
a)

18.0 ml

b)

6.0 ml

c)

38.0 ml

31.

Which box has a higher density?

a)

A

b)

B

c)

They are the same

32.

The amount of space something takes up

a)

density

b)

mass

c)

volume

d)

matter

33.

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

34.

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)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

35.

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)

A piece of paper changes shape when you rip it up

36.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

37.

Which observations prove a chemical change has 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

38.

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

a)

Physical change: state of matter

b)

Chemical change: production of a solid

c)

Physical change: freezing

d)

Chemical change: rust

39.

When iron is exposed to air over a long period of time, it forms rust. This is an example of what?

a)

A new substance forming

b)

Color change: no new substance

c)

Shape change: no new substance

d)

Burning: a new substance

40.

A physical change...

a)

Changes the physical properties of an object, but does not create a new substance.

b)

Creates a new substance and cannot be undone.

41.

A chemical change...

a)

Changes the physical properties of an object, but does not create a new substance.

b)

Creates a new substance and cannot be undone.

42.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

43.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

44.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

45.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

46.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

47.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

48.

Is this an example of a physical or chemical change?

a)

Physical

b)

Chemical

49.

Melting a chocolate bar is a...

a)

Physical change

b)

Chemical change 

50.

Which of the following is NOT an example of a physical change?

a)

Crumpling paper

b)

Sharpening a pencil

c)

Clothes shrinking in the dryer

d)

Milk turning sour

51.

A change in which NEW substances are formed.

a)

Chemical change

b)

Physical change

52.

Which of the following is NOT an example of chemical change?

a)

Milk turning sour

b)

Burning wood

c)

Breaking a pencil

d)

Metal turning rusty

53.
a)
Element
b)
Compound
c)
Mixture
54.
a)
Element
b)
Compound
c)
Mixture
55.
a)
Element
b)
Compound
c)
Mixture
56.
a)
Element
b)
Compound
c)
Mixture
57.
a)
Element
b)
Compound
c)
Mixture
58.

A pure substance that cannot be broken down into any other substance.

a)

Elements

b)

Compounds

c)

Mixtures

59.

Fe is the ___________________ for iron

a)

Letters

b)

Chemical Symbol

c)

Equation

60.

A(n) ______________ is formed when two or more elements chemically combine.

a)

Compound

b)

Element

c)

Mixture

61.

A ___________ is a combination of many different elements not chemically combined.

a)

Element

b)

Compound

c)

Mixture

62.
Which of these is a pure substance?
a)
bread
b)
table salt
c)
garden soil
d)
sea water
63.
Which of the following is NOT a pure substance?
a)
milk
b)
oxygen
c)
water
d)
carbon dioxide
64.
Which of the following is a way in which elements and compounds are similar?
a)
Elements and compounds are pure substances.
b)
Elements and compounds are both made up of different kinds of atoms.
c)
Elements and compounds can both be broken down by physical means.
d)
Elements and compounds are listed on the periodic table.
65.

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

a)

an element

b)

compound

c)

mixture

d)

suspension

66.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
67.

A student placed a small chip of limestone into a hydrochloric acid solution, and carbon dioxide gas was released. The carbon dioxide provided evidence that

a)

only a physical change occurred.

b)

a chemical change occurred.

c)

only a loss of mass occurred.

d)

the formation of an element occurred.

68.

Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2. Carbon dioxide gas is

a)

an element made of carbon and oxygen atoms.

b)

a solution made of carbon and oxygen atoms.

c)

a compound of carbon and oxygen atoms.

d)

a mixture of carbon and oxygen atoms.

69.

What type of change is this?

a)

Chemical

b)

Melting

c)

Evaporation

d)

Condensation

e)

Sublimation

70.

What makes elements and compounds different from mixtures? Elements & compounds-

a)

have a constant composition (pure substances)

b)

are made of gases

c)

Will not change when heated

d)

conduct electric current

71.

In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

a)

I

b)

II

c)

III

d)

IV

72.

Mixtures are different than pure substances because mixtures-

a)

have lower boiling points

b)

can be separated physically

c)

are less dense than pure substances

d)

contain only one type of atom

73.

A bottle of dishwashing detergent contains a clear, viscous liquid. The label has a long list of ingredients, including water, sodium lauryl sulfate, fragrance, and Blue dye #5.

What can you infer about the material in the bottle from this label and the appearance of the liquid?

a)

It is a pure substance.

b)

It is a compound.

c)

It is a heterogeneous mixture.

d)

It is a homogeneous mixture.

74.

Chicken noodle soup is

a)

Homogeneous mixture

b)

Heterogeneous mixture

75.

Saltwater is

a)

Mixture

b)

Compound

76.

[check all that apply] Pure substances include:

a)

Elements

b)

Homogeneous Mixtures

c)

Compounds

d)

Heterogeneous Mixtures

77.
Name the separation method that causes wet clothes on a clothes line to dry
a)
Chromatography
b)
Filtration
c)
Distillation
d)
Evaporation
78.

Name the separation technique shown in the diagram.

a)

evaporation

b)

distillation

c)

filtration

79.

Dyes in water soluble markers may be separated by means of..

a)

crystallization

b)

sublimation

c)

chromatography

d)

sedimentation

80.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
81.
Water and alcohol are easily separated by distillation because of their
a)
 different melting points
b)
different colours
c)
different densities
d)
different boiling points
82.
To separate a mixture of soil and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
83.
To separate a mixture of salt and water what separation method is used?
a)
Filtration
b)
Distillation
c)
Chromatography
d)
Evaporation
84.
chromatography separate the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
85.
Look at the apparatus setup. It cannot be used to separate which of the following mixtures? 
a)
Marble chips from oil 
b)
Alcohol and water
c)
Chalk from sugar solution
d)
Sand and sea water
86.
Can you separate salt from water using filtration?
a)
yes
b)
no
87.
The separation technique that involves heating a solution until the liquid changes into a gaseous state, leaving behind a solid is known as
a)
decanting
b)
 evaporation
c)
loading
d)
chromatography
88.

In a coffee machine, the ground coffee is separated from the coffee solution by using..

a)

sand paper

b)

filter paper

c)

toilet paper

d)

tissue paper

89.
Iron fillings can be separated from iron and Sulphur mixture by
a)
sedementation
b)
heating
c)
magnetic attraction
d)
seiving
90.

A mixture is a combination of elements where no ___________ reaction takes place

a)

physical

b)

chemical

91.
Which one of the following solids is insoluble in water?
a)
sugar
b)
sand
c)
copper sulfate
d)
salt
92.

Which process would you use to separate solid particles from larger particles in a mixture with filter paper in a funnel to trap solids so that the liquids will pass through.

a)

Chromatography

b)

Magnetic Attraction

c)

Filtration

d)

Flotation

93.

Which process would you use to separate smaller solid particles from larger solid particles. A mixture of different sized solids is put into a container that has a screen material at the bottom with certain sized holes in it. The smaller particles go through the screen and the larger ones do not.

a)

Evaporation

b)

Magnetic Attraction

c)

Filtration

d)

Sifting

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