Free Printable Part 1 Science comp review 7th grade

1.

A controlled scientific study with a melted number of variables in an

a)

Independent variable

b)

Experiment

c)

Dependent Variable

d)

Experimental Setup

2.

The factor the scientists choose to test or change in an experiment, also known as the manipulated variable

a)

Experiment

b)

Experimental setup

c)

Independent Variable

d)

Dependent Variable

3.

The factor that is measured or observed, data is collected by the scientist in the experiment, is is also called the responding variable

a)

Dependent Variable

b)

Control Setup

c)

Controlled variable

d)

Observation

4.

The part of the experiment that contains or is given the independent variable; the part of the experiment that is tested upon

a)

Hypotheses

b)

Controlled variable

c)

Dependent variable

d)

Experimental setup

5.

The part of the experiment that is used as a comparison and does not get or contain the independent variable

a)

Control setup

b)

Hypotheses

c)

Dependent Variable

d)

Independent Variable

6.

The factor in an experiment that is held constant so it will not influence the outcome; also called a constant

a)

Control Setup

b)

Experimental setup

c)

Dependent Variable

d)

Controlled Variable

7.

An educated guess as to the solution o a problem or scientific question is a

a)

Hypotheses

b)

Observation

c)

Controlled setup

d)

Experimental setup

8.

Using the 5 senses to gather information about a problem or scientific question is called an

a)

Control setup

b)

Controlled variable

c)

Hypotheses

d)

Observation

9.

Pick the two branches of physical science

a)

Physics

b)

Chemistry

c)

Botany

d)

Astronomy

10.

What type of data involves numbers

a)

Quantitative

b)

Qualitative

11.

What type of data uses words to describe data

a)

Quantitive

b)

Qualitative

12.

The Metric System is the system of measurement scientists use around the world

a)

True

b)

False

13.

Three students wanted to find out whether the mass of an object affects how fast it falls. They designed an experiment in which different stacks of washers would each be released from the same height. They tied the washers together and determined how long each stack took to reach the ground.

What is the independent variable in this experiment?

a)

Mass of the washers

b)

Time to reach the ground

c)

Height of drop

14.

Three students wanted to find out whether the mass of an object affects how fast it falls. They designed an experiment in which different stacks of washers would each be released from the same height. They tied the washers together and determined how long each stack took to reach the ground.

What is the dependent variable in this experiment?

a)

Mass of washers

b)

Time to reach the ground

c)

Height of drop

15.

Three students wanted to find out whether the mass of an object affects how fast it falls. They designed an experiment in which different stacks of washers would each be released from the same height. They tied the washers together and determined how long each stack took to reach the ground.

Give a controlled variable or constant in this experiment

a)

Mass of washers

b)

Time to reach the ground

c)

Height of drop

16.

What 2 main characters is matter divided into?

a)

Pure substances

b)

Mixtures

c)

Elements

d)

Compounds

17.

What are the two types of pure substances

a)

Elements

b)

Compounds

c)

Heterogeneous

d)

Homogeneous

18.

What are the two types of mixtures

a)

Heterogeneous

b)

Homogeneous

c)

Pure substances

d)

Mixtures

19.

Combination of 2 or more substances in any proportion

a)

Mixture

b)

Atom

c)

Compound

d)

Matter

20.

The smallest particle of an element that has the elects properties

a)

Neutron

b)

Electron

c)

Atom

d)

Proton

21.

Unique substance that forms when two or more elements combine chemically

a)

Compound

b)

Homogeneous

c)

Heterogeneous

d)

Element

22.

Mixtures that are evenly mixed are

a)

Homogeneous

b)

Heterogeneous

23.

Mixtures that are unevenly mixed in which particles can be seen, filtered, and will settle out are

a)

Homogeneous

b)

Heterogeneous

24.

Pure substance, made of only one type of atom, that cannot be separated into any other substances is called an

a)

Matter

b)

Element

c)

Compound

d)

Atom

25.

Anything that has mass and volume is

a)

Density

b)

Weight

c)

Matter

26.

What are the 2 units for mass

a)

Gram

b)

Milliliter

c)

Kilogram

d)

Liters

27.

What are the units used for volume

a)

Milliliters

b)

Liters

c)

Gram

d)

Kilogram

28.

What is the unit used for weight

a)

Milliliter

b)

Liters

c)

Newtons

d)

Gram

29.

What scientific tool can be used to measure the mass of an object

a)

Triple beam balance

b)

Graduated cylinder

30.

What scientific tool can be used to measure the volume of a liquid or irregular solid

a)

Triple beam balance

b)

Graduated cylinder

31.

The amount of space matter occupies

a)

Volume

b)

Mass

c)

Density

d)

Weight

32.

The amount of matter in an object

a)

Volume

b)

Mass

c)

Density

d)

Weight

33.

The mass per unit volume of an object

a)

Volume

b)

Mass

c)

Density

d)

Weight

34.

The measure of the pull of gravity on an object

a)

Volume

b)

Mass

c)

Density

d)

Weight

35.

Read the balance

a)

802.28g

b)

382.85g

c)

380.27g

36.

Read the cylinder

a)

25.0 ml

b)

24.0 ml

c)

23.0 ml

37.

Which has a definite shape and definite volume

a)

Gas

b)

Solid

c)

Liquid

38.

Which has no definite shape but does have a definite volume

a)

Gas

b)

Solid

c)

Liquid

39.

Which has no definite shape and no definite volume

a)

Gas

b)

Solid

c)

Liquid

40.

Which has particles that are tightly packed and move by vibration

a)

Gas

b)

Solid

c)

Liquid

41.

Which has particles that move at high speed in all directions

a)

Gas

b)

Solid

c)

Liquid

42.

Which has particles that are close together but slide past each other

a)

Gas

b)

Solid

c)

Liquid

43.

Which has the most thermal energy

a)

Gas

b)

Solid

c)

Liquid

44.

Gas law that relates temperature and volume of a gas and states, when pressure remains constant, if temperature of a gas increase its volume also increases

a)

Charles law

b)

Boyles law

45.

Gas law that relates pressure and volume or a gas and states, when temperature remains constant, if the pressure on a gas increases it’s volume will decrease

a)

Charles law

b)

Boyles law

46.

Pick the ones that apply to Boyles Law

a)

A bad of chops become puffed out on a plane

b)

Hot air balloons fly

c)

Using your lungs to breathe

d)

A scuba diver suffers from the bonds

e)

A pool float left out on a hot day pops

47.

A liquids resistance to flow is called

a)

Viscosity

b)

Surface tension

c)

Nucleus

d)

Plasma

48.

The uneven forced acting at the surface of a liquid is called

a)

Viscosity

b)

Surface tension

c)

Plasma

d)

Electrons

49.

Snow & Dry ice is a:

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

50.

Fog & Water is a:

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

51.

Air is a:

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

52.

Lightening and Stars are a:

a)

Plasma

b)

Liquid

c)

Solid

d)

Gas

53.

When thermal energy energy (heat) increases particles will move

a)

Faster

b)

Slower

54.

When thermal energy (heat) decrease particles will move

a)

Faster

b)

Slower

55.

Where is most of the mass of an atom found

a)

Nucleus

b)

Atomic number

c)

Proton

d)

Neutrons

56.

The maximum number of electrons that can be found in the first energy is

a)

8

b)

2

c)

4

d)

3

57.

The maximum number of valence electrons in any level, except the first, is

a)

10

b)

6

c)

2

d)

8

58.

Electrons found in the outermost level are called

a)

Atomic number

b)

Mass number

c)

Valence electrons

d)

Nuclear

59.

Which scientists performed the cathode ray experiment?

a)

Thomson

b)

Rutherford

c)

Democritus

d)

Bohr

60.

What was discovered by the Cathode Ray experiment

a)

Nucleus

b)

Electrons

c)

Atomic theory

61.

Which scientists the gold foil experiment

a)

Thomson

b)

Dalton

c)

JJ Thomson

d)

Rutherford

62.

What was discovered from the gold foil experiment?

a)

Electrons

b)

Atomic theory

c)

Nucleus

d)

Energy levels

63.

Who first came up with the idea of the atom

a)

John Dalton

b)

Democritus

c)

JJ Thomson

d)

Bohr

64.

Who wrote the Atom Theory

a)

Dalton

b)

Democritus

c)

Bohr

d)

Chadwick

65.

Who discovered electrons and created the plum putting model of the atom

a)

Democritus

b)

Dalton

c)

JJ Thomson

d)

Bohr

66.

Who placed electrons into energy levels

a)

Dalton

b)

JJ Thomson

c)

Bohr

d)

Chadwick

67.

Who discovered neutrons

a)

Bohr

b)

JJ Thomson

c)

Chadwick

d)

Dalton

68.

Who created the first periodic table and ordered it by increasing atomic mass

a)

Mendeleev

b)

Mosley

c)

Bohr

d)

JJ Thomson

69.

Who recorded the table by atomic number

a)

Mendeleev

b)

Mosley

c)

Chadwick

d)

Bohr

70.

Up and down columns of elements that have similar properties are called

a)

Group/family

b)

Periods

71.

The seven horizontal rows of the periodic table are called

a)

Groups/family

b)

Periods

72.

All elements in the same family/group have the same number of

a)

Valence electrons

b)

Energy levels

c)

Nonmetals

d)

Metals

73.

All elements in the same period have the same number of

a)

Valence electrons

b)

Energy levels

c)

Metals

d)

Nonmetals

74.

Elements found to the left of the dark zigzag line will lose valence electrons called

a)

Valence electrons

b)

Energy levels

c)

Metals

d)

Nonmetals

75.

Elements found the right of the dark zigzag line will gain valance electrons called

a)

Valence electric

b)

Energy levels

c)

Metals

d)

Nonmetals

76.

If an element has 1, 2, or 3 valence electrons they will ____ their valence electrons and form ____ ions

a)

Gain, negative

b)

Loose, positive

c)

Gain, positive

d)

Loose, negative

77.

If an element has 5, 6, or 7 valence electrons they will ____ valence electrons and form ____ ion’s

a)

Gain, negative

b)

Gain, positive

c)

Loose, negative

d)

Loose, positive

78.

An atom that has an electric charge is an

a)

Electron

b)

Neutron

c)

Ion

d)

Metal

Part 1 Science comp review 7th grade

Total questions: 78

Worksheet time: 20hrs 30mins

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