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Monday TE21 Review 12/16

Total questions: 108

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

Which of the following is an example of an element?

a)

Water

b)

Oxygen

c)

Salt

d)

Air

2.

What is the smallest unit of a compound?

a)

Atom

b)

Molecule

c)

Ion

d)

Mixture

3.

Which of the following is a mixture?

a)

Carbon dioxide

b)

Sodium chloride

c)

Lemonade

d)

Gold

4.

Which statement best describes a compound?

a)

It contains only one type of atom.

b)

It is made by physically mixing substances.

c)

It is made of two or more elements chemically combined.

d)

It cannot be separated into simpler substances.

5.

Which process can be used to separate the components of a mixture?

a)

Chemical reaction

b)

Filtration

c)

Electrolysis

d)

Combustion

6.

If you mix sand and salt together, what type of substance do you create?

a)

Element

b)

Compound

c)

Mixture

d)

Solution

7.

Which of the following best explains why water ( H2OH_2O ) is a compound and not a mixture?

a)

It contains only one type of atom.

b)

Its components are physically combined.

c)

Its components are chemically bonded in fixed proportions.

d)

It can be separated by filtration.

8.

A student is given a sample of iron filings and sulfur powder. After mixing and heating, a new substance is formed. What evidence shows that a compound has been created?

a)

The mixture can be separated by a magnet.

b)

The properties of the new substance are different from both iron and sulfur.

c)

The iron filings remain visible.

d)

The sulfur powder dissolves in water.

9.

You are given three samples: pure copper, salt water, and carbon dioxide. How would you classify each sample as an element, compound, or mixture? Choose the correct classification.

a)

Copper: mixture, Salt water: element, Carbon dioxide: compound

b)

Copper: element, Salt water: mixture, Carbon dioxide: compound

c)

Copper: compound, Salt water: mixture, Carbon dioxide: element

d)

Copper: element, Salt water: compound, Carbon dioxide: mixture

10.

A teacher mixes sugar and water in a beaker. After stirring, the sugar dissolves completely. How can the student prove that this is a mixture and not a compound?

a)

By showing that the solution cannot be separated

b)

By evaporating the water to recover the sugar

c)

By burning the solution

d)

By freezing the solution

11.

What kind of change is a burning candle?

a)

chemical change

b)

physical change

12.

What kind of change is a frying egg?

a)

chemical change

b)

physical change

13.

What kind of change an exploding firework?

a)

physical change

b)

chemical change

14.

Baking cookies is what type of change?

a)

chemical change

b)

physical change

15.

a banana rotting is what type of change?

a)

chemical change

b)

physical change

16.

baking soda and vinegar chemically combine to make a new substance. What type of change is this?

a)

chemical change

b)

physical change

17.

Metal rusting is what type of change?

a)

chemical change

b)

physical change

18.
a)

chemical change

b)

physical change

19.
a)

chemical change

b)

physical change

20.
a)

chemical change

b)

physical change

21.

Ice cream melting is what type of change?

a)

chemical change

b)

physical change

22.

Cutting a pizza into 8 separate slices is what type of change?

a)

chemical change

b)

physical change

23.
a)

chemical change

b)

physical change

24.

Anything that takes up space and has mass is

a)

Matter

b)

Volume

c)

Liquid

d)

Atom

25.

A solid

a)

has particles that are far apart

b)

has a size and shape of its own

c)

takes the shape of its container

26.

The smallest part of matter and makes up molecules

a)

is an atom

b)

is a molecule

c)

is a gas

d)

is matter

27.

Oxygen is

a)

a gas you can breathe

b)

a solid you can eat

c)

a liquid which changes shape

d)

a brother to carbon dioxide

28.

In a _______ the molecules are close together.

a)

solid

b)

liquid

c)

gas

29.

All _______ can move and flow.

a)

liquids

b)

solids

c)

gases

30.

An example of a solid is

a)

a desk

b)

oxygen

c)

water

d)

juice

31.

An example of a liquid is

a)

honey

b)

a stapler

c)

a water bottle

32.

One similarity between solids, liquids and gases is

a)

all three have atoms and molecules

b)

all three have molecules that are close together

c)

all three take the shape of their containers

33.

A ________ has no shape and no size.

a)

gas

b)

liquid

c)

solid

34.

EXPERIMENT #1

REACTANT(S) ------> PRODUCT(S)

48.6g Magnesium + 32.0g Oxygen ------> 80.6g Magnesium Oxide.


Does this experimental data support the Law of Conservation of Mass?

a)

yes

b)

no

35.

EXPERIMENT #3

REACTANT(S) ------> PRODUCT(S)

12 .2 g Magnesium + 8.0g Oxygen ------> _____Magnesium Oxide


Assuming that magnesium and oxygen will react completely with one another, predict the mass of magnesium oxide that will be produced. _________

a)

12.2 g

b)

8.0 g

c)

20.2 g

d)

4.2g

36.

EXPERIMENT #4

If the cap had been removed during the reaction (open system), would there still be 44g of Product in the jar?

a)

No, some of the substance was lost out of the container as a gas

b)

Yes, mass can't be destroyed

37.

A scientist mixed 100 grams of salt into a 500 grams of water. How many grams of salt water did I make?

a)

500g

b)

400g

c)

600g

d)

700g

38.

A student heated a 10 gram sample of a compound in an open container. A chemical reaction occurred. The mass of the sample was measured again and found to be less than before. Which of the following explains the change in mass of the sample.

a)

The heat caused the compound to become less dense

b)

The reaction gave off more heat than was added

c)

Some of the lighter atoms were converted to energy

d)

One of the reaction products was a gas.

39.

Which of the following is a physical change?

a)

rusting metal

b)

boiling water

c)

leaves changing color

d)

bubbling of an antacid tablet in water

40.

If you heat a substance in a test tube and it starts as green and after heating is black, you have observed a ____________

a)

Chemical change

b)

Physical Change

c)

Psychological change

d)

Physical Property

41.

Is the equation balanced?

a)

yes

b)

no

42.

Is the equation balanced?

a)

yes

b)

no

43.

In 6CO2, identify the subscript.

a)

C

b)

O

c)

6

d)

2

44.

20 g of water decomposes into 12 g of oxygen and an unknown amount of hydrogen. How much hydrogen was there?

a)

32 g

b)

20 g

c)

12 g

d)

8 g

45.

10g of H2 + 20 g of Cl2 --> 30 g of 2HCl. What are the products?

a)

H2 + HCl

b)

H2 + Cl2

c)

HCl

d)

Cl2 + HCl

46.

Which equation follows the law of conservation of mass?

a)

Na + Cl2 --> NaCl

b)

Na + Cl2 --> 2NaCl

c)

2Na + Cl2 --> NaCl

d)

2Na + Cl2 --> 2NaCl

47.

Does this equation follow the law of conservation of mass?

a)

Yes, because the mass is the same.

b)

Yes, because the mass is not the same.

c)

No, because the mass is the same.

d)

No, because the mass is not the same.

48.

Does this follow the law of conservation of mass?

a)

Yes, because there are the same number of atoms.

b)

Yes, because there are not the same number of atoms.

c)

No, because there are the same number of atoms.

d)

No, because there are not the same number of atoms.

49.

In NH3, how many Nitrogen's are there?

a)

1

b)

2

c)

3

d)

4

50.
This organelle takes food and turns it into ENERGY for plant and animal cells.
a)
Chloroplast
b)
Mitochondria
c)
Lysosome
d)
Ribosome
51.
The site of photosynthesis
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
nucleus
52.
Directs all cell activities through the DNA located there.
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
53.
I am a packaging and shipping machine! Who am I?
a)
vacuole
b)
ribosome
c)
mitochondrion
d)
golgi apparatus
54.
Which of the following is directly involved in the transportation of materials inside/within the cell?
a)
Endoplasmic Reticulum
b)
Vacuole
c)
Lysosome
d)
Mitochondria
55.
You might think of me as the trash collector, but recycler is maybe more accurate. What am I?
a)
mitochondria
b)
lysosome
c)
vacuole
d)
ribosome
56.
What is found in both plant and animal cells but is much larger in plant cells?
a)
Nucleus
b)
Mitochondria
c)
Chloroplast
d)
Vacuole
57.
Where are proteins made?
a)
Golgi body
b)
Mitoichondria
c)
Chromosomes
d)
Ribosomes
58.
A rigid layer that lies outside the cell's  membrane is...
a)
Cytoskeleton
b)
Cilia
c)
Cell Wall
d)
Flagella
59.
What organelle is called the "powerhouse" of a cell?

a)
Endoplasmic Reticulum
b)
Nucleus
c)
Mitochondria
d)
Nucleolus
60.
What is the gel-like substance inside of cells called?

a)
photoplasm
b)
photosynthesis
c)
cytoskeleton
d)
cytoplasm
61.
This organelle acts as the cell's skin and keeps everything inside.
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
ribsome
62.
I am only found in a plant cell. What am I?
a)
cell wall
b)
mitochondria
c)
cytoplasm
d)
chloroplast
63.
What is the difference between rough and smooth ER?
a)
There is no difference.
b)
Plants have rough ER, animals have smooth ER.
c)
What type of injuries the Doctors treat.
d)
Rough has ribosomes, smooth does not.
64.
What is the function of the organelle labelled "E"?
a)
Protein packaging and shipping
b)
Provides energy to the cell
c)
Breaks down food and waste
d)
Creates proteins
65.
What is the function of the organelle labelled "K"?
a)
Protein packaging and shipping
b)
Provides energy to the cell
c)
Breaks down food and waste
d)
Creates proteins
66.
What is the function of the organelle labelled "B"?
a)
Protein packaging and shipping
b)
Provides energy to the cell
c)
Contains the DNA (genetic material)
d)
Creates proteins
67.
What is the function of the organelle labelled "K" (the bumps on the ER)?
a)
Protein packaging and shipping
b)
Provides energy to the cell
c)
Breaks down food and waste
d)
Creates proteins
68.
What is the function of the organelle labelled "D"?
a)
Protein packaging and shipping
b)
Provides energy to the cell
c)
Breaks down food and waste
d)
Helps with transportation in the cell
69.
What is the function of the organelle labeled "F"?
a)
Use sun energy to make food
b)
Break food down for energy
c)
Contains DNA
d)
Protects the cell
70.

Single celled organisms that live in extreme conditions getting energy from taking in chemicals from their surrounds

a)

Fungi

b)

Eubacteria

c)

Protists

d)

Archaebacteria

71.

Many celled organisms that do not move around, but make their own food for energy

a)

Plants

b)

Animals

c)

Fungi

d)

Protists

72.

Kingdom that can be single celled or many celled, plantlike or animal-like, may eat food for energy or even make their own food for energy

a)

Eubacteria

b)

Plant

c)

Animal

d)

Protists

73.

Single celled organism that can be found in the body or to make yogurt and some cheeses

a)

Protists

b)

Eubacteria

c)

Archaebacteria

d)

Fungi

74.

Organism that can be single celled or many celled and obtain energy by feeding on dead or decaying tissue

a)

Archaebacteria

b)

Fungi

c)

Protists

d)

Animals

75.

Many celled organism where all species move and get energy by eating food

a)

Plants

b)

Animals

c)

Protists

d)

Fungi

76.

Grass, trees, bushes and ferns are members of what kingdom?

a)

Animal

b)

Protists

c)

Plants

d)

Fungi

77.

Fuzzy, black mold growing on bread or green mold on fruit are examples of which kingdom?

a)

Protists

b)

Archaebacteria

c)

Eubacteria

d)

Fungi

78.

Green algae in a pond or seaweed such as kelp are examples of which kingdom?

a)

Plants

b)

Protists

c)

Fungi

d)

Eubacteria

79.

Mushrooms are an example of which kingdom?

a)

Protists

b)

Fungi

c)

Plants

d)

Bacteria

80.

Living organism found in cheeses and yogurt:

a)

Protists

b)

Archaebacteria

c)

Eubacteria

d)

Fungi

81.

Kingdom that is found near hot sulfur springs and salty lakes

a)

Fungi

b)

Protist

c)

Archaebacteria

d)

Eubacteria

82.

Which is responsible for providing oxygen to cells?

a)

skeletal system

b)

digestive system

c)

muscular system

d)

circulatory system

83.

Which system in the human body includes the heart, blood, arteries, and veins?

a)

cardiovascular

b)

digestive

c)

muscular

d)

respiratory

84.

Which best describes the function of the skeletal system?

a)

It transports oxygen to cells and tissues.

b)

It gives shape and support to the human body.

c)

It takes in and breaks down all necessary nutrients for the body.

85.

What is the relationship between the respiratory system and the circulatory system?

a)

The respiratory system exchanges oxygen and carbon dioxide with the circulatory system.

b)

The respiratory system exchanges oxygen and carbon monoxide with the circulatory system.

c)

The respiratory system exchanges oxygen and sugar with the circulatory system.

d)

The respiratory system exchanges oxygen and nitrogen with the circulatory system.

86.

In what way are the digestive and circulatory systems alike?

a)

Both protect organs in the body.

b)

Both control movement of the body.

c)

Both absorb gases or nutrients into the body

d)

Both provide structural support for the body

87.

In what way are the circulatory system and the nervous system similar?

a)

They both perform the same function.

b)

They are both structural systems.

c)

They are both transport systems.

d)

They both involve the same organs.

88.

Which human body systems are located throughout most of the body?

a)

digestive and respiratory

b)

skeletal and respiratory

c)

nervous and circulatory

d)

respiratory and circulatory

89.

Which statement best describes the relationship between the nervous system and the muscular system?

a)

The nervous system controls the muscular system.

b)

The muscular system controls the nervous system.

c)

The nervous system provides nutrients and oxygen for the muscular system.

d)

The muscular system provides nutrients and oxygen for the nervous system.

90.

Which best describes the role of the respiratory system?

a)

It helps people stand upright.

b)

It helps people eat and digest different foods.

c)

It helps people transport blood throughout their bodies.

d)

It helps people breathe in oxygen and breathe out carbon dioxide.

91.

Which two human body systems work closely together to distribute

nutrients from food throughout the body?

a)

muscular and skeletal

b)

digestive and circulatory

c)

circulatory and respiratory

d)

respiratory and digestive

92.

Which major body system breaks down food to release nutrients needed

for energy production?

a)

digestive

b)

muscular

c)

respiratory

d)

cardiovascular

93.

Which best explains how the muscular system relies on the respiratory

system?

a)

The respiratory system cools the muscular system.

b)

The respiratory system acts as the support system for the muscular

system.

c)

The respiratory system brings oxygen into the body for the muscular

system to use.

94.

Which system produces red blood cells?

a)

nervous

b)

digestive

c)

skeletal

d)

circulatory

95.

What do the muscular system and skeletal system have in common?

a)

Both systems protect the brain.

b)

Both systems pump blood to the body.

c)

Both systems are made up of soft material.

d)

Both systems assist the body with movement.

96.

Which best explains the effects of exercise on the respiratory system?

a)

Exercise increases breathing rate which makes the lungs stronger.

b)

Exercise increases breathing rate which makes the bones stronger.

c)

Exercise decreases breathing rate which sends more oxygen to the

brain.

d)

Exercise decreases breathing rate which produces more wastes for the

kidneys to process.

97.

Using the Periodic Table, which element would be most similar to Lithium (Li)?

a)

Sodium (Na)

b)

Magnesium (Mg)

c)

Chlorine (Cl)

d)

Oxygen (O)

98.

Elements in the same _____________ have similar chemical and physical properties.

a)

row

b)

period

c)

familiy

d)

general area

99.

Based on the periodic table, which compound would be the most similar to Sodium Chloride (NaCl)?

a)

Magnesium Bromide (MgBr2)

b)

Lithium Fluoride (LiF)

c)

Carbon Dioxide (CO2)

d)

Sulfur Hexafluoride (SF6)

100.

Which 3 of the elements below are considered Metals?

a)

Carbon

b)

Sodium

c)

Magnesium

d)

Silver

e)

Helium

101.

Most of the mass of an atom is found

a)

in the nucleus

b)

in the electron cloud

c)

Impossible to tell

102.

The charge of an atom is determined by

a)

Its protons and neutrons

b)

Its protons and electrons

c)

Its electrons and neutrons

d)

Its mass

103.

The nucleus of an atom contains

a)

Protons and neutrons

b)

Protons and electrons

c)

Neutrons and Electrons

d)

Empty space

104.

Which option correctly identifies the subatomic particle with its charge?

a)

Protons are negative

b)

Electrons are neutral

c)

Neutrons are negative

d)

Electrons are negative

105.

Using the periodic table square pictured, how many protons are found in an atom of Potassium?

a)

19

b)

39

c)

39.098

d)

20

106.

Using the periodic table square pictured, how many neutrons are found in the nucleus of a potassium atom?

a)

19

b)

39

c)

39.098

d)

20

107.

If the potassium atom has a net charge of zero, how many electrons will it have?

a)

19

b)

20

c)

21

d)

18

108.

Answer the question in the picture

a)

+1

b)

+2

c)

-1

d)

-2

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