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Science BM2 Review

Total questions: 74

Worksheet time: 49mins

Name
Class
Date
1.
Using your senses to gather information.
a)
hypothesis 
b)
observation 
c)
seeing 
d)
guessing 
2.

What unit is used to measure temperature?

a)

meter (m)

b)

liter (L)

c)

gram (g)

d)

degrees Celsius (°C)

3.
Identify the equipment shown here:
a)
graduated cylinder
b)
Erlenmeyer flask
c)
beaker
d)
volumetric flask
4.
Identify the equipment shown here:
a)
test tube
b)
meter stick
c)
scale
d)
thermometer
5.
What is used to measure mass of an object in grams?
a)
Triple beam balance
b)
Test tube rack
c)
Meter stick
d)
Graduated Cylinder
6.
What is the volume of the liquid in this graduated cylinder?
a)
19 mL 
b)
35 mL 
c)
24 mL 
d)
1.9 mL
7.

What is the volume of the liquid in this graduated cylinder?

a)

21 mL

b)

2.1 mL

c)

1.2 mL

d)

0.21 mL

8.

The manipulated variable that I change in an experiment

a)

dependent variable

b)

constant

c)

independent variable

d)

hypothesis

9.
Which of the following is an observation of the picture?
a)
The person is wearing a T-shirt
b)
It is a sunny day
c)
The person is going to a birthday party
d)
The gift is a DVD player
10.
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. 
11.

Which statement is an inference about this picture?

a)

The van is tan.

b)

The van ran into KFC.

c)

The driver really wanted to eat.

d)

An ambulance may be on the way.

12.
What is an observation for this picture?
a)
The man is scared
b)
The man is going to get eaten
c)
There is a man in a kayak
d)
The man is paddling fast
13.

Which of the following is NOT an inference about the man in this picture:

a)

The man hates his purple shirt.

b)

The man has a purple shirt.

c)

The man is having a bad day.

d)

This man is upset because he's hungry.

14.
New York must have colder weather since it snows so much
a)
observation
b)
inference
15.
The information you record in an experiment is called your ____________.
a)
data
b)
conclusions
c)
notebook
d)
inquiry
16.
This is the correct order for the steps of the Scientific Method:
Problem, Research, Hypothesis, Experiment, Results, Conclusion
a)
True
b)
False
17.

The space that an object takes up

a)

matter

b)

mass

c)

volume

d)

nucleus

18.

A measure of how much matter an object is made of

a)

matter

b)

mass

c)

volume

d)

nucleus

19.

The smallest particle of an element; the building block of matter

a)

matter

b)

atom

c)

nucleus

d)

electron

20.

The center of an atom that contains protons and neutrons

a)

matter

b)

atom

c)

nucleus

d)

electron

21.

The subatomic particle with a negative charge

a)

proton

b)

neutron

c)

electron

d)

nucleus

22.

The number of protons in the nucleus of an atom

a)

periodic table

b)

atomic mass

c)

atomic number

d)

nucleus

23.

The combined mass of mainly protons and neutrons in an atom

a)

atomic number

b)

atomic mass/mass number

c)

periodic table

d)

nucleus

24.

A characteristic of a substance that can be observed without changing the identity of the substance; ex. mass, volume

a)

chemical property

b)

physical property

c)

chemical change

d)

physical change

25.

A characteristic of a substance that describes how it can form into a new substance; ex. flammability, corrosiveness

a)

chemical property

b)

physical property

c)

chemical change

d)

physical change

26.

A combination of two or more substances that do not combine chemically; ex. a milkshake

a)

solution

b)

compound

c)

mixture

d)

molecule

27.

A substance made up of two or more different types of elements chemically bonded together; ex. carbon dioxide

a)

solution

b)

compound

c)

mixture

d)

molecule

28.

Title: "The Effect of Different Liquids on Plant Growth" - the independent variable is ...

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

29.
Which of the following would be considered quantitative data?
a)
Color
b)
Smell
c)
6.84 cm
d)
texture
30.

The number of protons =

a)

atomic number

b)

atomic mass

c)

atomic mass - atomic number

31.

The number of electrons =

a)

atomic number

b)

atomic mass

c)

atomic mass - atomic number

32.

The number of neutrons =

a)

atomic number

b)

atomic mass

c)

atomic mass - atomic number

33.

How many protons does oxygen have?

a)

2

b)

8

c)

10

d)

16

34.

How many electrons does oxygen have?

a)

2

b)

8

c)

10

d)

16

35.

How many neutrons does oxygen have?

a)

2

b)

8

c)

10

d)

16

36.

What is the atomic number of lithium?

a)

3

b)

4

c)

5

d)

8

37.

What is the number of protons of lithium?

a)

3

b)

4

c)

5

d)

8

38.

What is the number of neutrons of lithium?

a)

3

b)

4

c)

5

d)

8

39.

Water (H2O) is a compound.

a)

True

b)

False

40.

How many atoms of oxygen are in H2O?

a)

1

b)

2

c)

3

d)

4

41.

Salt water (NaCl + H2O) is a mixture.

a)

True

b)

False

42.

H2 is a compound.

a)

True

b)

False

43.

Burning firewood is a chemical change.

a)

True

b)

False

44.

__________ are made up of solutes and solvents.

a)

Solutions

b)

Suspensions

c)

Colloids

45.

Water is a universal solvent.

a)

true

b)

false

46.

Which of these dissolves another substance?

a)

Solute

b)

solvent

c)

Solution

47.

If sugar is added to iced tea, which is the solute?

a)

sugar

b)

iced tea

48.
A molecule with electrically charged parts is a 
a)
gas
b)
polar molecule
c)
solution
d)
nonpolar molecule
49.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
50.

What word describes when water "sticks" to other substances?

a)

cohesion

b)

adhesion

c)

capillary action

d)

surface tension

51.
Surface tension is caused by the tightness of the polar molecules pulling at each other at the surface of the water. Which of these is not an example of surface tension?
a)
Water forming in beads on a car windshield
b)
a bug walking across water
c)
water moving up through a paper towel
d)
a needle floating on the water
52.

Capillary action is caused by both cohesion and adhesion.

a)

True

b)

False

53.

Ice floats in water. This is because

a)

ice is more dense than water

b)

ice is less dense than water

c)

ice is a solid

d)

water is a liquid

54.

What is it called when liquid water changes to water vapor?

a)

precipitation

b)

condensation

c)

evaporation

d)

transpiration

55.

What is the stage after evaporation in the water cycle?

a)

condensation

b)

runoff

c)

precipitation

d)

collection

56.

When water _________, dew (liquid) forms.

a)

melts

b)

evaporates

c)

condenses

d)

precipitates

57.

What is mechanical/physical weathering?

a)

Process through which rocks are physically broken into smaller pieces.

b)

Rocks are broken down through chemical changes.

c)

Rocks are worn away from acid in plant roots.

d)

Rocks broken down by machinery.

58.

Potholes forming in the road after a cold winter is an example of:

a)

physical weathering

b)

chemical weathering

59.

The process by which layers or sheets of rock gradually break off:

a)

exfoliation

b)

abrasion

c)

erosion

d)

deposition

60.

The process of physically wearing down rock through impact from other rocks:

a)

exfoliation

b)

abrasion

c)

erosion

d)

deposition

61.

The breakdown or decomposition of rock that takes place when minerals change through chemical processes:

a)

chemical weathering

b)

mechanical weathering

c)

erosion

d)

deposition

62.

The process in which sediment particles are picked up and moved from one place to another:

a)

mechanical weathering

b)

chemical weathering

c)

erosion

d)

deposition

63.
Roots grow into cracks of a rock and pry them apart
a)
mechanical weathering
b)
chemical weathering
c)
erosion
d)
deposition
64.

Rock is broken by the freezing and thawing of ice

a)

chemical weathering

b)

mechanical weathering

c)

erosion

d)

deposition

65.

North Carolina is in the Chesapeake Bay Watershed.

a)

true

b)

false

66.

West Virginia is in the Chesapeake Bay Watershed.

a)

true

b)

false

67.

An elevated land mass that separates watersheds is called a

a)

watershed.

b)

divide.

c)

sub-watershed.

d)

transpiration.

68.

An area of land that is soaked with water for at least part of the year is called a(n) _____. Examples include swamps, bogs, and marshes.

a)

estuary

b)

floodplain

c)

wetland

d)

tributary

69.

Wetlands create river canyons.

a)

true

b)

false

70.

Which of the following is NOT a biotic factor?

a)

mushroom

b)

air

c)

elephant

d)

coyote

71.
Is a weather an abiotic or biotic factor? 
a)
abiotic
b)
biotic
72.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
73.

A combination of living and nonliving things in a particular area is called a(n) _____.

a)

population

b)

abiotic

c)

biotic

d)

ecosystem

74.

This type of pollution can be traced back to the point of origin.

a)

Point Source

b)

Non-point source

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