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6TH GRADE PRACTICE CHEM

Total questions: 86

Worksheet time: 2hrs 35mins

Name
Class
Date
1.
All matter is made of _________. 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
2.
A substance that is made up for one type of atom is called an:
a)
atom
b)
element
c)
compound
d)
mixture
3.

Used to find precise volume of liquids.

a)

Flask

b)

Beaker

c)

Graduated cylinder

d)

Thermometer

4.

used to find the length of an object

a)

Meter stick

b)

Stop watch

c)

Electronic scale

d)

Spring scale

5.
If you wanted to measure the mass of an object what would you use?
a)
pan balance
b)
triple beam balance
c)
spring scale
d)
graduated cylinder
6.
What tool is used to measure length?
a)
balance
b)
ruler
c)
thermometer
d)
graduated cylinder
7.

Name this tool.

a)

Thermometer

b)

Triple Beam Balance

c)

Pan Balance

d)

Safety Goggles

8.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
9.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
10.

A water molecule has the chemical formula H2O. This means that the water molecule is made up of

a)

Two hydrogen atoms and one oxygen atom

b)

Two oxygen atoms and one hydrogen atom

c)

Two hydrogen atoms and two oxygen atoms

d)

Two molecules of water

11.

Cohesive means ........

a)

the water molecules stick to each other

b)

the water molecules stick to other surfaces

c)

the water molecules are less dense

d)

the water molecules are far apart

12.

Adhesive means ........

a)

the water molecules stick to each other

b)

the water molecules stick to other surfaces

c)

the water molecules are less dense

d)

the water molecules are far apart

13.

Water striders can walk on water because of ____________.

a)

capillary action

b)

adhesion

c)

surface tension

d)

universal solvent

14.

Water can bounce on water because of surface tension.

a)

True

b)

False

15.

Why is water so good at dissolving so many substances?

a)

it is polar

b)

it is less dense as a solid

c)

cohesion

d)

adhesion

16.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
17.
A molecule with electrically charged areas is called a _______________.
a)
magnet
b)
polar molecule
c)
solution
d)
electrical molecule
18.

Which is a Physical change?

a)

Color

b)

Rusting

c)

Burning

d)

Reactions with acid

19.

Which answers are a Homogeneous mixture?

a)

Hot chocolate

b)

Oxygen

c)

Lucky Charms cereal

d)

sugar in water

20.

What is true of the Metric System? Mark all that apply.

a)

A measurement System based on the number 10.

b)

It is used to measure mass, length and volume.

c)

It is used throughout Science and in all other countries other than the US.

d)

It includes inches, feet and pounds.

21.

What might you measure using millimeters?

a)

The distance to school.

b)

An insect.

c)

The length of a car.

d)

The length of a football field.

22.

What would you use a RULER for?

a)

To measure length.

b)

To measure mass.

c)

To measure volume.

d)

To measure time.

23.

What would you use a TRIPLE-BEAM BALANCE for?

a)

To measure length.

b)

To measure mass.

c)

To measure volume.

d)

To measure time.

24.

Looking at the photo, what is the mass of the object?

a)

48.5 g

b)

480.5 g

c)

40.4005 g

d)

485 g

25.

Based on the photo, what is the volume of the liquid?

a)

35 mL

b)

24 mL

c)

25 mL

d)

30 mL

26.

any substance that has mass and takes up space

a)

matter

b)

atom

c)

particle

27.

the smallest unit of matter

a)

matter

b)

atom

c)

particle

28.

the parts of an atom

a)

matter

b)

atom

c)

particle

29.

Which of these are the parts of an atom?

a)

proton

b)

neutron

c)

electron

d)

there are no parts

30.

Which of these has a definite shape?

a)

solid

b)

liquid

c)

gas

31.

Which of these has a definite volume?

a)

solid

b)

liquid

c)

gas

32.

How do the particles in a SOLID move?

a)

wiggle

b)

slow dance

c)

move fast, collide

d)

stay in place

33.

How do the particles in a LIQUID move?

a)

wiggle

b)

slow dance

c)

move fast, collide

d)

stay in place

34.

How do the particles in a GAS move?

a)

wiggle

b)

slow dance

c)

move fast, collide

d)

stay in place

35.

How are the particles arranged in a SOLID?

a)

close together in a defined space

b)

spread apart but still sort of structured

c)

loose, spread out

36.

How are the particles arranged in a LIQUID?

a)

close together in a defined space

b)

spread apart but still sort of structured

c)

loose, spread out

37.

How are the particles arranged in a GAS?

a)

close together in a defined space

b)

spread apart but still sort of structured

c)

loose, spread out

38.

Which phases change in SUBLIMATION?

a)

Solid to Gas

b)

Liquid to Gas

c)

Liquid to Solid

d)

Gas to Solid

39.

Which phases change in VAPORIZATION?

a)

Solid to Gas

b)

Liquid to Gas

c)

Liquid to Solid

d)

Gas to Solid

40.

Which phases change in FREEZING?

a)

Solid to Gas

b)

Liquid to Gas

c)

Liquid to Solid

d)

Gas to Solid

41.

Which phases change in DEPOSITION?

a)

Gas to Solid

b)

Gas to Liquid

c)

Solid to Liquid

42.

Which phases change in CONDENSATION?

a)

Gas to Solid

b)

Gas to Liquid

c)

Solid to Liquid

43.

Which phases change in MELTING?

a)

Gas to Solid

b)

Gas to Liquid

c)

Solid to Liquid

44.

This symbol represents _________________degrees.

a)

Fahrenheit

b)

Celsius

c)

Kelvin

d)

Absolute zero

45.
What is an inference? 
a)
Just a guess.
b)
A statement based off of your observations. 
c)
The same as an observation. 
d)
Examples of something. 
46.
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
47.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
48.
A student knows the mass of an object. What other variable does the student need to know to calculate the object's density?
a)
Color
b)
Weight
c)
Volume
d)
Length
49.
Which would be the most useful for identifying an unknown liquid?
a)
Weight
b)
volume
c)
mass
d)
density
50.
What is this tool to get mass?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
51.
Why does ice float?
a)
Liquid water is less dense than solid water.
b)
Solid water is less dense than liquid water.
c)
Gaseous water is less dense than solid water.
d)
Liquid water is less dense than gaseous water.
52.
In general what is the most dense form of matter?
a)
solid
b)
liquid
c)
gas
d)
plasmas
53.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
54.
This is a measurement of the amount of matter, or 'stuff', in an object or substance.
a)
volume
b)
density
c)
mass
d)
length
55.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
56.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
57.
An object with which of the following densities will float on water?
a)
0.7 g/cm3
b)
1.2 g/cm3
c)
3.5 g/cm3
d)
11.4 g/cm3
58.
Why do ice cubes float in a  glass of water?
a)
the ice cubes are more dense than the water
b)
the water is more dense than the ice cubes
c)
the water is more dense than the glass
d)
the ice is more dense than the glass
59.

Mass is measured in what units

a)

grams

b)

centimeters

c)

cubic centimeters

60.

What tools are necessary to measure the density of an IRREGULAR shaped object? (Select ALL correct answers that apply)

a)

Triple Beam Balance/Scale

b)

Graduated Cylinder/Beaker

c)

Metric Ruler/Meter Stick

61.

What tools are necessary to measure the density of a REGULAR shaped object? (Select ALL correct answers that apply)

a)

Triple Beam Balance/Scale

b)

Graduated Cylinder/Beaker

c)

Metric Ruler/Meter Stick

62.

Use the figure above, to answer the following question. Pic the answer that puts the objects in order from MOST DENSE to LEAST DENSE.

a)

B, A, C, D

b)

D, C, A, B

c)

A, B, C, D

d)

D, C, B, A

63.

How do you calculate volume of a regular object?

a)

L x W x H

b)

Water levels

c)

Subtraction

64.
Solids have a definite _______________.
a)
smell
b)
shape
c)
picture
d)
sound
65.
________________ is anything that has mass and takes up space.
a)
volume
b)
matter
c)
mass
d)
weight
66.
Which state of matter has particles that are tightly packed?
a)
liquid
b)
gas
c)
solid
67.
air pressure is the ________ that air has on a surface or object 
a)
height
b)
distance
c)
force
d)
protuberance
68.

IF we are using Boyles' law and our Pressure goes UP, what must our volume do?

a)

Go UP

b)

Go DOWN

c)

Stay the same

d)

Wrong law.

69.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
70.
The relationship of which two variables are compared in Boyle's Law?
a)
pressure & volume
b)
volume & temperature
c)
temperature & pressure
d)
volume & moles (amount of gas)
71.

Charles' Law deals with what quantities?

a)

pressure/temperature

b)

pressure/volume

c)

volume/temperature

d)

volume/temperature/pressure

72.
As you climb up a mountain what happens to the air pressure?
a)
decreases
b)
increases
c)
stays the same
73.

Warm air is....

a)

More dense than cold air

b)

Less dense than cold air

c)

Has the same amount of density

74.

When Volume of a container is increased, pressure decreases at constant temperature. This is ……………………………..

relationship. The name of this relationship is …………………………… law.

a)

Inversely proportional / Boyle’s

b)

Directly proportional/ Boyles’s

c)

Inversely proportional / Charles’s

d)

Directly proportional / Charle’s

75.
When Pressure increases then the Volume must...
a)
Increase
b)
decrease
76.
When Volume increases then Pressure must...
a)
Increase
b)
Decrease
77.

Boyles Law Is A

a)

Directly Proportional Relationship

b)

Inversely Proportional Relationships

78.

Pressing On A Balloon Raises The

a)

Fun

b)

Volume

c)

Pressure

d)

Temperature

79.

Boyles Law Tells That

a)

The More The Volume The Less The Temperature

b)

The More The Temperature The Less The Pressure

c)

The More The Volume The More The Pressure

d)

The More The Pressure The Less The Volume

80.

Charles Laws Are A

a)

Directly Proportional Relationship

b)

Inversely Proportional Relationships

81.

What is the formula for Boyle's Law?

a)

P1V1=P2V2

b)

P1V2=P2V1

c)

P1/V1=P2/V2

d)

P1V1/P2V2

82.

When Volume increases then Pressure must...

a)

Increase

b)

Decrease

83.

When Pressure increases then the Volume must...

a)

Increase

b)

decrease

84.

According to Charles Law, if Temperature of a gas increases Volume will also....

a)

Increases

b)

Decreases

c)

Stays the same

85.

According to Charles Law, the relationship between Temperature and Volume can best be described as....

a)

Inverse Relationship

b)

No Relationship

c)

Direct Relationship

86.

The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together; causes the surface to act as if it has a thin skin.

a)

surface tension

b)

viscosity

c)

gas

d)

vibrate

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