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Midterm Exam Review

Total questions: 83

Worksheet time: 1hrs 18mins

Name
Class
Date
1.
The independent variable is the ONE thing you _____.
a)
change
b)
keep the same
c)
experiment with
d)
investigate
2.
The measurable factor in an experiment is known as the: 
a)
Control
b)
Independent Variable
c)
Constant
d)
Dependent Variable
3.
A possible explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
4.

The parts of an investigation that remain the same so that the dependent variable can be measured.

a)

independent variable

b)

dependent variable

c)

hypothesis

d)

control variable

5.

Which of these contains steps in the right order?

a)

Ask a question, form a hypothesis, research, plan and conduct an investigation, draw conclusions, report and share results, make a conclusion

b)

Form a hypothesis, ask a question, research, plan and conduct an investigation, draw conclusions, report and share results

c)

Observe and ask questions, form a hypothesis, plan and conduct an investigation, draw conclusions, report and share results

d)

Form a hypothesis, ask a question, research, report and share results, plan and conduct an investigation, draw conclusions

6.
What type of graph is this?
a)
Line Graph
b)
Pictograph
c)
Bar Graph
d)
Histogram
7.
Science is a continually ongoing process.
a)
True
b)
False
8.
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
9.

Performing a test or experiment allows you to test your ___________.

a)

draw conclusions

b)

hypothesis

c)

senses

d)

battery

10.

The following is NOT a step in the scientific method.

a)

collect data

b)

share conclusions with others

c)

make predictions

d)

take conclusions

11.

Science is concerned with gathering and organizing what?

a)

Nature

b)

Knowledge

c)

Methods

d)

Stuff

12.

The statement based on repeated experimental observations that describe HOW the universe works under certain conditions is known as:

a)

investigation

b)

scientific law

c)

observation

d)

scientific theory

13.

The statement based on repeated experimental observations that describe WHY the universe works under certain conditions is known as:

a)

scientific law

b)

scientific theory

c)

scientific problem

d)

scientific investigation

14.

The application of science to help people is called?

a)

Technology

b)

Medicine

c)

Modeling

d)

Entomology

15.

Name 2 examples of technology

a)

Grass & leaves

b)

Pencils & shoes

c)

People & animals

d)

Water & dirt

16.

What is the largest amount of volume?

a)

1000 mL

b)

1cm2

c)

1000 L

d)

100 cm2

17.

How many millimeters are in a centimeter?

a)

10

b)

1

c)

100

d)

1000

18.

How many milliliters are in a liter?

a)

10

b)

1

c)

100

d)

1000

19.

What is the English unit for length?

a)

Foot

b)

Yard

c)

Meter

d)

Pound

20.

What is the Metric unit for length?

a)

Pounds

b)

Foot

c)

Meter

d)

Liter

21.

What are two items used to measure volume?

a)

Liter and milliliter

b)

Feet and inches

c)

Yards and miles

d)

Pounds and grams

22.

What metric unit would you use to measure the distance between here and Dallas, Texas?

a)

Globe

b)

Centimeters

c)

Kilometers

d)

Meters

23.

What type of graph is used to show how something changes as a result of something else?

a)

Line

b)

Scatterplot

c)

Circle

d)

Bar

24.

What type of graph is best for displaying parts of a whole?

a)

Line

b)

Scatterplot

c)

Circle

d)

Bar

25.

What type of graph is best for comparing numerical values?

a)

Line

b)

Scatterplot

c)

Circle

d)

Bar

26.

When creating a line graph, the ______________ variable goes on the X axis.

a)

Independent

b)

Control

c)

Dependent

d)

Responding

27.

The different substances in a mixture

a)

keep their individual properties.

b)

combine chemically.

c)

form new substances.

d)

cannot be separated.

28.

A chemical change occurs whenever

a)

substances are mixed

b)

objects change shape

c)

hot objects melt

d)

new substances form

29.

A heterogeneous mixture is one that is NOT

a)

Uniform throughout

b)

Easily mixed together

c)

made of two or more liquids

d)

Edible by humans

30.

Matter is defined as anything that

a)

can be seen and touched

b)

has mass and takes up space

c)

can be weighed

d)

be energy

31.

Which of the following is NOT a physical property of iron?

a)

ductility

b)

ability to rust

c)

gray color

d)

conductivity

32.

Diamond is known for its

a)

Hardness

b)

Flammability

c)

Reactivity

d)

All of the above

33.

Chemical changes can affect physical and chemical properties whereas physical changes affect(s)

a)

only chemical changes

b)

only physical changes

c)

both chemical and physical changes

d)

neither chemical or physical changes

34.

Which of the following is NOT a potential sign of chemical change?

a)

change in odor

b)

production of gas

c)

change in gas

d)

boiling

35.

hich of the following liquids has the HIGHEST viscosity?

a)

Maple syrup

b)

Milk

c)

Orange juice

d)

water

36.

A chemical property of copper is its

a)

density of 8.96 g/cm^3

b)

reactivity with air and moisture.

c)

golden yellow color

d)

melting point of 1,085 degrees celcius

37.

The science of what matter is made of and how it changes is called

a)

chemistry

b)

physics

c)

kinetics

d)

engineering

38.

Unlike a mixture, a pure substance

a)

Contains atoms

b)

Has a changing composition

c)

has a specific size and shape

d)

Has an unchanging composition

39.

A substance that cannot be broken down into simpler substances is a(n)

a)

compound

b)

mixture

c)

element

d)

atom

40.

Calculate the mass of a liquid with a density of 5.0 g/mL and a volume of 25 mL.

a)

5g

b)

125mL

c)

0.2g

d)

125g

41.

A liquid has a volume of 73 mL and a mass of 35.75 g. What is the density of the liquid?

a)

2609.75 g/mL

b)

0.49 g/mL

c)

2.04 g/mL

d)

1.02 g/mL

42.

Calculate the volume of a liquid with a density of 5.45 g/mL and a mass of 70 g.

a)

12.8mL

b)

0.077mL

c)

381.5 mL

d)

0.077 g

43.

Determine if the following are examples of physical or chemical properties.


sulfur has an odor similar to rotten eggs

a)

Physical

b)

Chemical

44.

Determine if the following are examples of physical or chemical properties.


black in color

a)

Physical

b)

Chemical

45.

Determine if the following are examples of physical or chemical properties.


sodium is explosive when exposed to water

a)

Physical

b)

Chemical

46.

Determine if the following are examples of physical or chemical properties.


paper is flammable

a)

Physical

b)

Chemical

47.

Determine if the following are examples of a physical or chemical change.


Honey is heated up to make it less viscous.

a)

Physical

b)

Chemical

48.

Determine if the following are examples of a physical or chemical change.


An ice cube is placed in the sun. Later there is a puddle of water. Later still the puddle is gone.

a)

Physical

b)

Chemical

49.

Determine if the following are examples of a physical or chemical change.


Your grandmother’s fine silver has black spots of tarnish.

a)

Physical

b)

Chemical

50.

Determine if the following are examples of a physical or chemical change.


Aluminum is hammered thin into foil sheets.

a)

Physical

b)

Chemical

51.

Determine if the following pure substances are an element or compound.


carbon dioxide

a)

Element

b)

Compound

52.

Determine if the following pure substances are an element or compound.


helium in a balloon

a)

Element

b)

Compound

53.

Determine if the following pure substances are an element or compound.


pure water

a)

Element

b)

Compound

54.

Determine if the following mixtures are heterogeneous mixture or homogeneous mixture


meat lovers pizza

a)

Heterogenous

b)

Homogenous

55.

Determine if the following mixtures are heterogeneous mixture or homogeneous mixture


Honey

a)

Heterogenous

b)

Homogenous

56.

Determine if the following mixtures are heterogeneous mixture or homogeneous mixture


pool water

a)

Heterogenous

b)

Homogenous

57.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
58.
Which form of matter does not take the shape of its container?
a)
liquid
b)
gas
c)
solid
d)
air
59.
How is a gas defined?
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
60.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
61.
How is a gas defined?
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
62.
What term describes a liquid changing to a solid?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
63.
Particles of a liquid
a)
are tightly packed together and stay in a fixed position.
b)
have no viscosity.
c)
decrease in volume with increasing temperature.
d)
are free to move around one another but still touch.
64.
Particles (molecules) in a ______________________ have more energy than the other states of matter.
a)
gas
b)
solid
c)
liquid
65.
______________________ takes place when a liquid changes to a solid.
a)
freezing
b)
melting
c)
boiling
d)
sublimation
66.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
67.
a)
It remains the same.
b)
It changes greatly.
c)
It changes minimally.
d)
Unable to tell.
68.
The state of matter that has no definite size or shape is
a)
Solid
b)
Liquid
c)
Gas
69.
When a gas changes directly to a solid, the process is known as what?
a)
Sublimation
b)
Condensation
c)
Deposition
d)
Evaporation
70.
Water can be a solid, liquid, and a gas.
a)
True
b)
False
liquid
71.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
72.
Particles (molecules) in a ______________________ have more energy than the other states of matter.
a)
gas
b)
solid
c)
liquid
73.
Which state of matter has tightly packed molecules?
a)
solid
b)
liquid
c)
gas
74.
The molecules in the picture are tightly held together with little movement. They have shape and energy.  Therefore, the picture represents _________.
a)
solid
b)
liquid
c)
gas
d)
plasma
75.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
76.
When the temperature of matter increases the particles...
a)
speed up and move closer
b)
speed up and move farther apart
c)
slow down and move closer together
d)
slow down and move farther apart
77.
What does this picture represent? 
a)
solid
b)
liquid
c)
gas
d)
plasma
78.
What does this picture represent? 
a)
solid
b)
liquid 
c)
gas
d)
plasma
79.
Which state of matter has particles that are stuck in one spot but vibrate?
a)
solid
b)
liquid
c)
gas
80.
Which state of matter has particles that are still close together, but can move around each other?
a)
solid
b)
liquid
c)
gas
81.

As the temperature increases, the __________ increases.

a)

space between atoms

b)

number of atoms

c)

number of electrons

d)

number of solid atoms

82.

How are mass and energy affected by physical and chemical changes?

a)

Mass and energy can be converted to other forms.

b)

Some mass and energy are destroyed.

c)

Mass and energy are created.

83.

On your way to school, the grass is wet even though it didn’t rain. What is this an example of?

a)

Evaporation

b)

Condensation

c)

Sublimation

d)

Melting

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