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Unit 2 Review - Chemistry

Total questions: 78

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
If this ice cream scoop melts, what will change?
a)
color
b)
shape
c)
flavor
2.
A puddle of water seemed to disappear. The heat caused the water to -
a)
melt
b)
condense
c)
evaporate
d)
cool
3.
The steam coming off the pot of boiling water is an example of....
a)
a solid becoming a liquid
b)
a liquid becoming a solid
c)
a liquid becoming a gas
d)
a gas becoming a liquid
4.
Which state of matter does ice start as (before you cool it)?
a)
liquid
b)
solid
c)
gas
5.
True or False: Matter can changes states by adding heat or cooling.
a)
True
b)
False
6.
Which will change state if you put it in the freezer?
a)
sand
b)
a bowl
c)
a pencil
d)
juice
7.
Volume is.....
a)
the weight of an object
b)
the gravity of an object
c)
how much space an object takes up
d)
measured with a balance scale
8.
Which state of matter has a definite shape?
a)
Gas
b)
Solid
c)
Liquid
d)
Plasma
9.
The molecules in a gas....
a)
are tightly packed
b)
slide past one another in a flowing manner
c)
vibrate, move freely, and spread
d)
are in a regular pattern
10.
Liquids....
a)
have a definite shape
b)
are always clear
c)
take the shape of their container
d)
are not matter
11.
Evaporation is
a)
Gas changing to a liquid
b)
Solid changing to a liquid
c)
Liquid changing to a solid
d)
Liquid changing to a gas
12.
A solid changing to a liquid is...
a)
melting
b)
freezing
c)
condensing
d)
evaporating
13.

What happens when you boil water?

a)

The water evaporates and changes to a gas?

b)

The water freezes and changes to a solid?

c)

The water condenses and changes to a liquid?

d)

The water does not change state?

14.

What will happen to ice cubes if you put them in a sunny place?

a)

The ice cubes will freeze and become a solid.

b)

The ice cubes will melt and become a liquid.

c)

The ice cubes will boil.

d)

Nothing will happen.

15.

How do you change a liquid water into solid water?

a)

Melting

b)

Boiling

c)

Freezing

d)

Condensing

16.

What happens when water condenses?

a)

It changes from a liquid to a gas.

b)

It changes from a gas to a liquid.

c)

It changes from a solid to a liquid.

d)

It changes from a liquid to a solid.

17.

What is the change in the state of matter called?

a)

Evaporation

b)

Condensation

c)

Sublimation

d)

Melting

18.

What is the change in the state of matter called?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

19.

What is the change in the state of matter called?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

20.

What is the change in the state of matter called?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

21.

What is the change in the state of matter called when a solid changes to a liquid?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

22.

What is the change in the state of matter called when a liquid changes to a solid?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

23.

What is the change in the state of matter called when a gas changes to a liquid?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

24.

What is the change in the state of matter called when a liquid changes to a gas?

a)

Evaporation

b)

Condensation

c)

Freezing

d)

Melting

25.

What are the three main states of matter?

a)

Solid, liquid, and gas

b)

Ice, water, and steam

c)

Temperature, pressure, and energy

d)

Hot, cold, and warm

26.

Compared to ice, how do molecules of water behave?

a)

They move less freely.

b)

They are locked into a crystal lattice.

c)

They move more freely

d)

They bounce off one another randomly.

27.

What do water vapor, liquid water, and ice have in common?

a)

The same crystal lattice structure.

b)

The same amount of energy.

c)

The same physical properties.

d)

The same chemical properties.

28.

What's the easiest way to add energy to matter?

a)

Heating it

b)

Cooling it

c)

Decreasing pressure

d)

Decreasing temperature

29.

What is it called when a solid turns directly into a gas?

a)

Sublimiation

b)

Vaporization

c)

Melting

d)

Fusion

30.

Dry ice has the same chemical properties as what gas?

a)

Hellium

b)

Hydrogen

c)

Nitrogen

d)

Carbon dioxide

31.

How do the molecules of a gas behave?

a)

They vibrate in place

b)

They bounce around randomly

c)

They are locked in a crystal lattice

d)

They clump together

32.

In what way are liquids different from solids?

a)

Liquid molecules are lighter than solid molecules

b)

Liquids are made of atoms; solids are made of molecules.

c)

Liquids don't have a fixed shape; solids do.

d)

Liquids are always denser than solids.

33.

What happns to the chemical structure of water when it changes state?

a)

Water molecules break apart to form individual atoms.

b)

Water molecules harden into ice molecules.

c)

Water molecules melt into gas molecules.

d)

Nothing happens to the chemical structure.

34.
When a substance goes from a solid to a gas WITHOUT changing into a liquid, this process is called ____________.
a)
Evaporation
b)
Sublimation
c)
Magic
35.
True or False. When a substance is cooled to a very low heat (freezing), it changes to a solid.
a)
True
b)
False
36.
True or False. When a substance is heated to a very high heat, it changes into a gas.
a)
True
b)
False
37.
True or False. When a substance goes through a chemical change, it makes something new.
a)
True
b)
False
38.
Going from a solid to a liquid is called _____________.
a)
Condensation
b)
Evaporation
c)
Sublimation
d)
Melting
39.
Going from a liquid to a solid is called _____________.
a)
Freezing
b)
Melting
c)
Condensation
d)
Evaporation
40.
How do the atoms behave in a gas?
a)
Atoms move very fast.
b)
Atoms shake.
c)
Atoms move at different speeds.
41.
How do the atoms behave in a solid?
a)
Atoms slide against each other to fill a bottle.
b)
Atoms are far apart and fly around the room.
c)
Atoms are close together and shake.
42.
How do the atoms behave in a liquid?
a)
Atoms move very fast.
b)
Atoms keep their shape.
c)
Atoms slide against each other to fill a bottle.
43.
What is the definition of a chemical change?
a)
A change in the shape of a substance.
b)

A change in the chemical of a substance.

44.
What is the definition of a physical change?
a)
A change in the size and shape of a substance
b)

A change in the chemical of a substance.

45.
The steam coming off the pot of boiling water is an example of....
a)
a solid becoming a liquid
b)
a liquid becoming a solid
c)
a liquid becoming a gas
d)
a gas becoming a liquid
46.

How can you remove energy from matter?

a)

By increasing its volume

b)

By lowering its temperature

c)

By increasing its pressure

d)

By boiling it

47.

What is the basic shape of a liquid?

a)

A sphere

b)

The same shape as a gas, only rounder

c)

A cube

d)

Whatever shape its container is

48.

What is used to measure (but not precise), heat, and mix large amounts of liquids?

a)

beaker

b)

flask

c)

test tube

d)

graduated cylinder

49.

What equipment allows you to measure liquid's volume and measures in milliliters?

a)

test tube

b)

beaker

c)

flask

d)

graduated cylinder

50.

Which equipment holds, measures, and mixes liquids (not a precise measurement), and measures in milliliters?

a)

flask

b)

test tube

c)

beaker

d)

graduated cylinder

51.

Which equipment heats liquids and some stir liquids?

a)

beaker

b)

graduated cylinder

c)

flask

d)

hot plate

52.

Which equipment holds liquids and allows reactions in a small space?

a)

test tube

b)

hot plate

c)

dropper

d)

beaker

53.

Which equipment allows you to drop a small amount of liquid?

a)

dropper

b)

test tube

c)

graduated cylinder

d)

flask

54.

This is used to pour lab materials into an object with a small opening

a)

scoop

b)

funnel

c)

bunsen burner

d)

goggles

55.

This is used to protect your eyes during an experiment

a)

scoop

b)

funnel

c)

bunsen burner

d)

goggles

56.

This is used to hold test tubes

a)

test tube holder

b)

eye wash

c)

eye dropper

d)

lab apron

57.

This is used to store and mix chemicals during an experiment

a)

fire extinguisher

b)

thermometer

c)

beaker

d)

tongs

58.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
59.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
60.

What is an observation?

a)

A scientific statement based on ideas

b)

Using your senses to notice what is going on around you

c)

To be unaware of your surroundings

d)

The question that you want an answer to.

61.
A testable answer to a scientific question
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
62.
This is the last step in the scientific method
a)

Draw a conclusion

b)

Record your data as results

c)

Don't tell anyone.

d)

Collaborate with others

63.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
64.
Which is NOT a step in the scientific method?
a)
Make observation
b)
Form a theory
c)
Collect data
d)
Form a hypothesis
65.

A hypothesis is a "guess" that has not yet been _.

a)

experimented

b)

made into a theory

c)

results calculated

d)

written about

66.
Should experiments be repeated over and over to see if the results are the same each time?
a)
yes
b)
no
67.
Testing a hypothesis often involves a(n):
a)
answer
b)
experiment
c)
problem
d)
safety check
68.
Observations made during an experiment are called:
a)
results
b)
problems
c)
conclusions
d)
questions
69.

Which of the following is NOT a testable question?

a)

How do rockets work?

b)

Does fertilizer help plants grow bigger?

c)

Does heart rate increase with exercise?

d)

Does the freezing point of water change at different elevations?

70.

What is the best way to collect and record data?

a)

In a data table

b)

On post-it notes

c)

On scrap paper

d)

interpretive dance

71.

The summary at the end of an experiment that explains the results.

a)

conclusion

b)

procedures

c)

materials

d)

responding variable

72.
Select the correct spelling:-
a)
Sciennce
b)
Science
c)
Sciense
d)
Scienc
73.
Select the correct spelling:-
a)
Chenistry
b)
Chemystry
c)
Chemistry
d)
Chemmistry
74.

Material that is rigid and maintains its shape.

a)

solid

b)

liquid

c)

gas

75.

Particles in the material can move past each other as well as vibrate or 'flow'

a)

solid

b)

liquid

c)

gas

76.

Material that consists of particles that are far apart.

a)

solid

b)

liquid

c)

gas

77.

Material that has particles that are close together

a)

solid

b)

liquid

c)

gas

78.

Particles in the material can move anywhere

a)

solid

b)

liquid

c)

gas

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