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SCIENCE MIDTERM REVIEW

Total questions: 64

Worksheet time: 54mins

Name
Class
Date
1.

What directs all of the cell's activities?

a)

cytoplasm

b)

chloroplasts

c)

mitochondria

d)

nucleus

2.

What makes food for the plant cells?

a)

cytoplasm

b)

chloroplasts

c)

mitochondria

d)

vacuole

3.

What is the basic unit of structure and function of living things?

(a)  

4.

What is the powerhouse of the cell? It releases energy from nutrients.

a)

mitochondria

b)

cell wall

c)

nucleus

d)

vacuole

5.

What stores water, waste, and nutrients in a cell?

a)

vacuole

b)

cell membrane

c)

chloroplasts

d)

cytoplasm

6.

What is the thin covering that controls what goes in and out of the cell?

a)

cytoplasm

b)

vacuole

c)

cell wall

d)

cell membrane

7.

What part of the cell provides support and protection for the cell?

a)

nucleus

b)

cell membrane

c)

cell wall

d)

cytoplasm

8.

What is the jelly-like substance that keeps a cell healthy?

a)

cytoplasm

b)

chloroplasts

c)

mitochondria

d)

vacuole

9.

What is the name used to describe the parts of the cell that carry out life processes?

a)

organettes

b)

organic

c)

organs

d)

organelles

10.

What is NOT an example of a chemical change?

a)

melting

b)

bubbling

c)

temperature change

d)

color change

11.

If the mass of Substance A is 10 g, and the mass of Substance B is 5 grams. The mass of the newly combined substance is 15 grams. Why?

a)

Law of Conservation of Matter

b)

Law of Substance

c)

Law of Critical Thinking

d)

Law of Physical Change

12.

What is another word for corrosion?

(a)  

13.

Is cutting a carrot considered a physical change or a chemical change?

a)

physical

b)

chemical

14.

What is the freezing point of water?

a)

32 F

b)

100 F

c)

25 F

d)

0 F

15.

What do you call the point when a liquid starts to bubble and change to a gas?

a)

temperature

b)

sublimation

c)

evaporation

d)

occupation

16.

What happens to the mass of an ice cube when it melts?

a)

Increases

b)

Decreases

c)

Stays the Same

17.

What image best shows a liquid?

a)
b)
c)
18.

Which is an example of a chemical change?

a)

frying an egg

b)

boiling water

c)

melting butter

d)

chopping onions

19.

Making a pancake from batter is an example of a ___________ change.

a)

chemical

b)

physical

20.
What is the chemical symbol for Lithium?
a)
H
b)
He
c)
Li
d)
N
21.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
22.
How many neutrons are in a Gold atom?
a)
79
b)
196
c)
118
d)
275
23.
How many electrons does a Copper atom have?
a)
63
b)
29
c)
92
d)
34
24.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
25.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
26.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
27.
The electrons of an atom are found...
a)
in the outer "cloud" surrounding the atom.
b)
in the nucleus of the atom.
c)
in the cloud and in the nucleus.
28.
The subatomic particle with a negative charge is the
a)
electron
b)
proton
c)
neutron
d)
nucleus 
29.
What is the atomic mass equal to?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
30.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

31.

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

32.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

33.

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

a)

Periodic Table of Elements

b)

Atomic Theory

c)

Isotopes

d)

Subatomic Particles

34.

one or two letters that represent the name of an element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

35.

Is the freezing point and melting point of water the same?

a)

YES

b)

NO

36.

What is the melting point and freezing point of water in CELCUIS?

a)

0 degrees

b)

100 degrees

c)

10 degrees

d)

1000 degrees

37.

What picture represents a solid?

a)
b)
c)
38.

What unit of measurement would be used to measure the volume of a liquid?

a)

liter

b)

meter

c)

gram

39.

Evaporation takes place when a liquid becomes a (a)   .

40.

At what temperature does liquid become a gas in degrees Fahrenheit?

a)

212

b)

100

c)

10

d)

1000

41.

At what temperature does a liquid become a gas in degrees Celcius?

a)

100

b)

10

c)

32

d)

50

42.

What does this tool measure?

a)

temperature

b)

volume

c)

mass

d)

length

43.

What is this tool testing?

a)

length

b)

temperature

c)

magnetism

d)

mass

44.

A water molecule is a compound made of 2 _______.

a)

things

b)

elements

c)

molecules

d)

compounds

45.

A molecule has 2 or more _____

a)

friends

b)

properties

c)

molecules

d)

atoms

46.

The control center of the cell.

a)

cytoplasm

b)

nucleus

c)

nucleoplasm

d)

chromatin

47.

The smallest particles of matter are called

a)

neutrons

b)

atoms

c)

electrons

d)

protons

48.

The amount of matter in an object

a)

Mass

b)

Volume

c)

Density

49.

the amount of space an object takes up

a)

Mass

b)

Volume

c)

Density

50.
Which number here is my atomic number?
a)
5
b)
10.811
51.
What part of the atom is the arrow pointing to?
a)
nucleus
b)
proton
c)
electron shell
d)
electron
52.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
53.
Which of these is the proton.
a)
A
b)
B
c)
C
d)
None
54.
The atomic number tells you what?
a)
number of electrons
b)
number of protons
c)
number of neutrons
d)
both electrons and protons in an atom.
55.

What is magnetism?

a)
A form of energy produced by the sun
b)
A force that attracts or repels certain materials
c)
A type of plant
d)
A type of rock found in the ocean
56.

What tool is used to measure liquids?

a)
Ruler
b)
Screwdriver
c)
Hammer
d)
Measuring cup
57.

Water is a compound because it is made of 2 different _____.

a)
molecules
b)
ions
c)
atoms
d)
elements
58.

A molecule is made of 2 or more _______.

a)
organs
b)
cells
c)
atoms
d)
proteins
59.

The smallest part of an element is called an __________.

a)
molecule
b)
atom
c)
cell
d)
organism
60.

What is the Atomic Theory?

a)
A theory about the behavior of planets in the solar system
b)
A theory about the behavior of subatomic particles
c)
A theory about the behavior of electromagnetic waves
d)
A scientific theory that describes the nature of matter and the behavior of atoms.
61.

What is plasma?

a)
A type of blood cell
b)
A type of gas used in cars
c)

Liquid part of blood that carries oxygen and nutrients

d)
A type of rock found in caves
62.

What system takes over after the digestive system?

a)
Nervous system
b)
Circulatory system
c)
Skeletal system
d)
Respiratory system
63.

What tissue covers the body and lines the organs?

a)

epithelial

b)
liver
c)
heart
d)
brain
64.

What is a group of tissues?

a)
Flock
b)
Herd
c)
Swarm
d)
Organ

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