th
8
Grade
Science Bowl EOG
Competition
DON’T FORGET
When you get your EOG booklet – label your
periodic table first thing!
Face Off – CALL MY BLUFF!
• Team 1 question : all stand if know the
answer (5 seconds)
• Team 2 : pick person standing to answer
• Team 1 : if correct win as many as standing
• If lose: if wrong lose as many as standing
• Cant pick the same person in a row
• Only the students who are up can speak…
you CAN NOT give your teammates help. If
you call out a point goes to the other team.
HOLD UP!
• There’s a CATCH…
• You must also ONLY demonstrate
POSITIVE actions – any put downs
or negative statements towards
other team/teammates results in
immediate independent loss of
points.
Everyone makes mistakes, let’s
focus on being EXTRAORDINARY!!!
Rules and Regulations
This is a team exercise. No put downs or making
fun of anyone.
Keep in mind…
The ultimate goal is for EVERY 8th grader
to score a 3 or 4. So help each other
out!
Which of the following is an example of a mixture?
a.
b.
c.
d.
Melting ice
Sand water
Boiling water
Alcohol in water
Answer
B) Sand in water
The reactants involved in a chemical reaction are
shown:
Na 2 O + H 2 O -- ?
How many O atoms must be present in the product that
forms from this reaction?
a.
b.
c.
d.
1
2
3
4
Answer
B) 2
Which of the following may happen during a
physical change?
a.
b.
c.
d.
New substances are formed
Reactants form products
A precipitate is formed
The temperature may increase
Answer
D) The temperature may increase
Which of the following compounds contains the
greatest number of atoms?
a. CO 2
b. C22H46
c. C6H12O6
d. CH4
Answer
B) C22H46
Which of the following is an example of a chemical
change?
a.
b.
c.
d.
Water evaporating
Wood burning
Ice cream melting
Face blushing
Answer
B) Wood Burning
Carlos has two unidentified liquids labeled A and B. The
liquids look similar, but they are different colors.
Carlos needs to determine if the two liquids have the
same density. To do this, Carlos decides to combine
the liquids. Will combining the liquids help Carlos
determine if the densities are the same?
a. No, it will not be possible to tell them apart once
they are mixed.
b. Yes, the liquids will form separate layers if their
densities are different.
c. Yes, a reaction will occur if the densities are not the
same.
d. No, density has nothing to do with how the liquids
mix.
Answer
B) Yes, the liquids will form separate
layers if their densities are different.
You test the local stream water with a pH indicator
strip. It turns a light orange for a pH of 4. What
does this indicate about the water in the stream?
a.
b.
c.
d.
The water is a strong acid.
The water is a strong basic.
The water is a weak acid.
The water is a strong base.
Answer
C) The water is a weak acid.
Amber plans to build an electric motor for her
science fair project. She decides to test how well
different materials conduct electricity from the
batteries to the motor. Which of the following
materials will be the best conductor for Amber’s
motor?
a.
b.
c.
d.
A copper wire
A rubber band
A glass rod
A neon bulb
Answer
A) A copper wire
A scientist wants to study the effects of acid rain
on the water quality in a lake. Which of the
following pieces of equipment would be most
useful to the scientist?
a.
b.
c.
d.
pH meter
barometer
GPS
Dissolved oxygen meter
Answer
A) pH meter
Where is the majority of Earth’s freshwater
located?
a.
b.
c.
d.
Rivers
Lakes
Groundwater
Glaciers
Answer
D) Glaciers
Approximately 70% of Earth’s surface is covered
with water. What percentage of this water is salt
water?
a.
b.
c.
d.
67%
77%
87%
97%
Answer
D) 97%
Which of the following structures is responsible for
breaking down water and worn-out cell parts?
a.
b.
c.
d.
Ribosome
Vacuole
Lysosome
Mitochondrion
Answer
C) Lysosome
Which of the following statements is not a
characteristic of a living thing?
a.
b.
c.
d.
Must be able to breathe
Must be made of cells
Must be able to grow and reproduce
Must be able to respond to its environment
Answer
A) Must be able to breathe
Mitochondria bread down food and release energy
for the cell. In which type of cell would you
expect to find the most mitochondria?
a.
b.
c.
d.
Skin cells
Muscle cells
Nerve cells
Fat cells
Answer
B) Muscle Cells
Which of the following is a poor conductor of
heat?
a.
b.
c.
d.
Metals
Metalloids
Nonmetals
Electrons
Answer
C) Nonmetals
Why is drinking water treated before it is pumped
to homes?
a. To kill microscopic organisms that could make
people sick
b. To make sure that it tastes good
c. To make sure that the water is clear
d. To add microscopic organisms that will make
the water safe to drink.
Answer
A) To kill microscopic organisms that
could make people sick
What is the smallest unit of life?
a.
b.
c.
d.
Matter
Mass
Cilia
Cells
Answer
D) Cells
Which of the following statements is accurate about the fossils
found in layer C?
a. Fossils found in layer C are older than fossils found in layer D.
b. Fossils found in layer C are younger than fossils found in layer
G.
c. Fossils found in layer C are older than fossils found in layer A.
d. Fossils found in layer C are younger than fossils found in layer
A.
Answer
C) Fossils found in layer C are
older than fossils found in
layer A.
What is the youngest layer of earth shown in this diagram?
a.
b.
c.
d.
A
E
G
F
Answer
C) G
What percentage of the Earth’s water is contained
in oceans?
a.
b.
c.
d.
About 3%
About 29%
About 71%
About 97%
Answer
D) 97%
What two quantities must be known to calculate
the density of a sample of matter?
a.
b.
c.
d.
Color and mass
Mass and volume
Length and mass
Solubility and mass
Extra points: What is the formula for Density?
Answer
B) Mass and Volume
Density= Mass/ volume
What mass (in grams) of oxygen (02) is required for
this reaction to occur?
CH4 + 02 --- 2CO2
16 g
a.
b.
c.
d.
16
36
44
64
?
+ H20
44g
36g
Answer
D) 64
How do ice layers show the history of Earth’s climate?
a. The thickness of each ice layer can show
temperature changes on Earth.
b. Concentrations of gases and elements in the ice can
show temperature changes on Earth.
c. The presence of certain gases in the ice can show
that climate changed at certain times on Earth.
d. The presence of soot and other particles in the ice
can show that climate changed at certain times on
Earth.
Answer
C) The presence of certain gases in
the ice can show that climate
changed at certain times on
Earth.
What is a disease that can spread from one person
to another called?
a.
b.
c.
d.
Carrier
Vector
Contagion
Noninfectious disease
Answer
C) Contagion
What is most likely occurring in the diagram
above?
a. Plates are converging to form a mountain.
b. Plates are transforming to form a earthquake
c. Plates are diverging and causing seafloor
spreading
d. Plates are subducting and causing a volcano.
Answer
D) Plates are subducting
and causing a volcano.
If you pour water onto a sheet of wax paper, the water
forms drops that are flat on the bottom and round on
the top. Why does the water arrange itself in this
shape?
a. Cohesion causes the water molecules to be
attracted to the wax paper.
b. Cohesion causes the water molecule to be attracted
to one another.
c. Adhesion causes the water molecules to be
attracted to one another.
d. Adhesion causes the water molecules to be
attracted to the wax paper.
Answer
B) Cohesion causes the
water molecule to be
attracted to one
another.
A student wants to do a research project about
estuaries. Which of the following bodies of water
would she most likely study?
a.
b.
c.
d.
Lake Erie
Mississippi River
Gulf of Mexico
Chesapeake Bay
Answer
D) Chesapeake Bay
What are the structures that surround the cell of the
paramecium (shown above) and move it through
water called?
a.
b.
c.
d.
Flagella
Pseudopods
False feet
Cilia
Answer
D) cilia
Index fossils are fossils of species that lived for only
a short period of time and lived on many parts of
the planet. How are index fossils useful to
scientists?
a. They are used for naming new fossils.
b. They are used to determine where an unknown
fossil is from.
c. They are used to determine the age of an
unknown fossil or rock layer.
d. They are used to develop a list of all species
that ever lived in a certain area.
Answer
C) They are used to
determine the age of
an unknown fossil or
rock layer.
Which statement about fossils is true?
a. It is impossible to determine the age of a fossil
based on its depth.
b. Newer fossils are found deeper in the ground.
c. The larger the fossil, the deeper it will sink into
the ground.
d. In undisturbed areas, older fossils are found
deeper in the ground.
Answer
D) In undisturbed areas,
older fossils are found
deeper in the ground.
Which of the following will float on top of water?
a.
b.
c.
d.
A piece of wood weighing 0.69 g/mL
A piece of wood weighing 1.57 g/mL
A ball weighing 5.9 g/mL
A ball weighing 10.6 g/mL
Answer
A) A piece of wood
weighing 0.69 g/mL
Scientists must monitor the effects of non-point
source pollution on the Neuse River in North
Carolina. Which of the following things should
the scientists NOT monitor?
a.
b.
c.
d.
Agricultural run-off from local farms
Sewage leaking into the river
Water from roadside ditches
Low pH level of precipitation
Answer
B) Sewage leaking into
the river
A tree was struck by lightening and burned to the ground.
Before burning, the tree weighed 80,000 pounds. After
burning, the ashes of the tree weighed in at 50,000
pounds. Explain what happened to the 30,000 pounds not
present after burning. Was it destroyed?
a) No this is not possible the reactant must always
weigh the same as the product
b) Yes, that is why 30,000 pounds are missing
c) No, the missing pounds are now gas
d) No, the missing pounds are now a liquid
Answer
c) No, the missing pounds
are now gas
Which of the following statements about chemicals
is true?
a. All chemicals are synthetic.
b. Chemicals can either be synthetic or naturally
occurring.
c. Chemicals can be solids, liquids, but not gases.
d. All chemicals are harmful to humans.
Answer
B) Chemicals can either be
synthetic or naturally
occurring.
What is most likely the reason for
scientists misunderstanding in the
fossil record?
A) Changes in climate
B) Erosion and unconformity
C) Species extinction
D) Tectonic plates
Answer
B) Erosion and unconformity
Which of the following statements is NOT part of
cell theory?
a. All organisms are made of one or more cells.
b. Cells are the basic units of structure and
function for all life.
c. All cells come from cells that already exist.
d. All new cells are identical to their parents.
Answer
D) All new cells are identical
to their parents
What do scientists mean when they say water is a
polar molecule?
a. Water molecules are rod shaped.
b. Water molecules have a positive charge on one
end and a negative charge on the other.
c. The water molecule has a negative charge at
cold temperatures.
d. The water molecule never develops a charge
and is always neutral.
Answer
B) Water molecules have a
positive charge on one end
and a negative charge on
the other.
Which statement is true about
elements and compounds?
A) Both can form new compounds and new
elements through different combinations
B) Both can be combined in different ways to
produce different atoms
C) Both can produce the same chemical with
different combinations
D) Both can be combined differently to
produce different substances
Answer
D) Both can be combined
differently to produce
different substances
Why is water considered a universal solvent?
a.
b.
c.
d.
Water can be dissolved in almost anything.
Water can dissolve almost anything.
Water can be found across the universe.
Water can make up almost any solution.
Answer
B) Water can dissolve almost
anything.
What property of water allows
it to be a solvent?
A) density
B) polarity
C) Cohesion
D) specific heat
Answer
B) Polarity
What property of water enables an insect to walk
on top of the water?
a.
b.
c.
d.
Adhesion and Density
Buoyancy and Cohesion
Cohesion and Surface tension
Polarity and Adhesion
Answer
C) Cohesion and Surface
tension
What does it mean when a scientist says a lake has
a high turbidity?
a.
b.
c.
d.
The water has a lot of particles in it.
The water is very clear.
The water is very basic.
The water can support many organisms.
Answer
A) The water has a lot of
particles in it.
The picture represents and atom of
which element?
+
+
+
+
+
Answer
BORON (B)
Atomic Number 5 = 5 protons
Which of the following is a clear example of pointsource pollution?
a.
b.
c.
d.
Trash floating in ocean water
Feedlot wastes in a river
Oil spill from a supertanker
Salts from irrigation
Answer
C) Oil spill from a supertanker
Scientists on a ship are using sonar to map the ocean
floow. They send out a sound pulse at Point A that
takes 8 seconds to return to the ship. At Point B, the
sound pulse takes 4 seconds to return. What
conclusion can be drawn about the depth of the
water at Points A and B?
a.
b.
c.
d.
They are the same depth.
Water at Point A is twice as deep as that at Point B.
Water at Point B is twice as deep as that at Point A.
Water at Point B is half as deep as water at Point A.
Answer
B) Water at Point A is twice as
deep as that at Point B.
A computer engineer is trying to design a new
memory chip for a laptop. He wants to use a
material for part of the chip that will not allow
electricity to past through it. Which of the
following materials should he use in his design?
a.
b.
c.
d.
Plastic
Aluminum
Tin
Lead
Answer
A) Plastic
Which project is most likely to interest a scientists
working at a biotechnology company?
a. Study and reconstruction of fossilized bones
b. Conservation of key species within ecosystems
c. Development of genetically modified corn
plants
d. Prevention of sewage leaking into water
supplies
Answer
C) Development of
genetically modified corn
plants
Which factor refers to the “strength” that a
chemical substance has on an organism?
a.
b.
c.
d.
Dose
Susceptibility
Toxicity
Potency
Answer
D) Potency
Which of the following describes the tendency of a
water molecule to stick to other water
molecules?
a.
b.
c.
d.
Cohesion
Density
Adhesion
Buoyancy
Answer
A) Cohesion
A farm is located directly beside
a river that the city uses for their
water supply. What can be some
possible negative effects?
A) There will be an increase in water
temperature causing high ph levels
B) There will be an increase in nitrogen causing
low dissolved oxygen
C) There will be a decrease in turbidity causing
clearer water
D) There will be an increase in bioindicators
Answer
B) There will be an
increase in nitrogen
causing low dissolved
oxygen
Which of the following represents a mixture?
a.
b.
c.
d.
A piece of copper wire
The oxygen gas in a pressurized tank
A slice of mushroom pizza
A lead fishing weight
Answer
C) A slice of mushroom pizza
Which form of water has the highest density?
a.
b.
c.
d.
Ice
Warm water
Cold water
Water vapor
Answer
C) Cold water
What does the law of conservation of matter
state?
a. The total mass of the reactants is greater than
the total mass of the products.
b. The total mass of the reactants is less than the
total mass of the products.
c. The totally mass of the reactants equals the
total mass of the products.
d. Mass can be created or destroyed.
Answer
C) The totally mass of the
reactants equals the total
mass of the products.
How are parasites and viruses similar?
a.
b.
c.
d.
Both are contagious diseases.
Both infect host organisms.
Both reproduce using host cells.
Both break down food using oxygen.
Answer
B) Both infect host organisms.
How is the cell membrane important to the process of
osmosis?
a. It allows water to move into the cell.
b. It allows all materials from the outside environment to
move into the cell.
c. It traps water and nutrients that would otherwise be
unable to move into the cell.
d. It collects nutrients from water to the outside
environment and moves them into the cell.
Answer
A) It allows water to move into the
cell.
Which of the following is an example of a solution?
a.
b.
c.
d.
Melting ice
Sand water
Boiling water
Alcohol in water
Answer
D) Alcohol in water
A pseudopod is a structure of a protist called an
amoeba. Which statements best describes a
pseudopod?
a. It is an extension of cytoplasm used to move
and capture food.
b. It is a small capsule used to store food.
c. It is a whiplike tail used to capture prey.
d. It is a circular structure that captures sunlight to
make energy.
Answer
a. It is an extension of cytoplasm used to
move and capture food.
How are plant and animal cells similar?
a. They both have cilia.
b. They both have a nucleus.
c. They both have an vacuoles.
d. They both have chloroplasts.
Answer
B.) They both have a nucleus.
Which of the following refers to how an organism
responds to a particular chemical substance?
a.
b.
c.
d.
Individual susceptibility
Death
Exposure time
Low dosage
Answer
A.) Individual Susceptibility
Why is water often used as a coolant in factories
and reactors?
a. It absorbs a lot of heat before increasing in
temperature.
b. It cools off very quickly after the heat source
has been removed.
c. It increases and decreases in temperature very
quickly.
d. It increases temperature quickly when a heat
source is applied.
Answer
a. It absorbs a lot of heat before increasing in
temperature.
What is the name of a chemical that can cause
cancer?
a.
b.
c.
d.
Nutrient
Carcinogen
Constrictor
Synthetic chemicals
Answer
B) Carcinogen
Finding a fossil 300 feet underground means that
the fossil is older than a fossil found at 150 feet
underground. This statement supports what
scientific law?
a.
b.
c.
d.
The law of conservation of matter
The law of superposition
The law of uniformitarianism
The law of partial pressures
Answer
B) The Law of Superposition
Charles Darwin proposed the idea that organisms
that are best suited to their environments will
survive and reproduce. What is this theory
known as?
a.
b.
c.
d.
Adaptation
Variation
Inherited characteristics
Natural selection
Answer
D) Natural Selection
Which of the following is an example of a mixture?
a.
b.
c.
d.
Melting ice
Sand water
Boiling water
Alcohol in water
Answer
B) Sand in water
The reactants involved in a chemical reaction are
shown:
Na 2 O + H 2 O -- ?
How many O atoms must be present in the product that
forms from this reaction?
a.
b.
c.
d.
1
2
3
4
Answer
B) 2
Which of the following may happen during a
physical change?
a.
b.
c.
d.
New substances are formed
Reactants form products
A precipitate is formed
The temperature may increase
Answer
D) The temperature may increase
Which of the following compounds contains the
greatest number of atoms?
a. CO 2
b. C22H46
c. C6H12O6
d. CH4
Answer
B) C22H46
Which of the following is an example of a chemical
change?
a.
b.
c.
d.
Water evaporating
Wood burning
Ice cream melting
Face blushing
Answer
B) Wood Burning
Carlos has two unidentified liquids labeled A and B. The
liquids look similar, but they are different colors.
Carlos needs to determine if the two liquids have the
same density. To do this, Carlos decides to combine
the liquids. Will combining the liquids help Carlos
determine if the densities are the same?
a. No, it will not be possible to tell them apart once
they are mixed.
b. Yes, the liquids will form separate layers if their
densities are different.
c. Yes, a reaction will occur if the densities are not the
same.
d. No, density has nothing to do with how the liquids
mix.
Answer
B) Yes, the liquids will form separate
layers if their densities are different.
You test the local stream water with a pH indicator
strip. It turns a light orange for a pH of 4. What
does this indicate about the water in the stream?
a.
b.
c.
d.
The water is a strong acid.
The water is a strong basic.
The water is a weak acid.
The water is a strong base.
Answer
C) The water is a weak acid.
Amber plans to build an electric motor for her
science fair project. She decides to test how well
different materials conduct electricity from the
batteries to the motor. Which of the following
materials will be the best conductor for Amber’s
motor?
a.
b.
c.
d.
A copper wire
A rubber band
A glass rod
A neon bulb
Answer
A) A copper wire
A scientist wants to study the effects of acid rain
on the water quality in a lake. Which of the
following pieces of equipment would be most
useful to the scientist?
a.
b.
c.
d.
pH meter
barometer
GPS
Dissolved oxygen meter
Answer
A) pH meter
Where is the majority of Earth’s freshwater
located?
a.
b.
c.
d.
Rivers
Lakes
Groundwater
Glaciers
Answer
D) Glaciers
Approximately 70% of Earth’s surface is covered
with water. What percentage of this water is salt
water?
a.
b.
c.
d.
67%
77%
87%
97%
Answer
D) 97%
Which of the following structures is responsible for
breaking down water and worn-out cell parts?
a.
b.
c.
d.
Ribosome
Vacuole
Lysosome
Mitochondrion
Answer
C) Lysosome
Which of the following statements is not a
characteristic of a living thing?
a.
b.
c.
d.
Must be able to breathe
Must be made of cells
Must be able to grow and reproduce
Must be able to respond to its environment
Answer
A) Must be able to breathe
Mitochondria bread down food and release energy
for the cell. In which type of cell would you
expect to find the most mitochondria?
a.
b.
c.
d.
Skin cells
Muscle cells
Nerve cells
Fat cells
Answer
B) Muscle Cells
Which of the following is a poor conductor of
heat?
a.
b.
c.
d.
Metals
Metalloids
Nonmetals
Electrons
Answer
C) Nonmetals
Why is drinking water treated before it is pumped
to homes?
a. To kill microscopic organisms that could make
people sick
b. To make sure that it tastes good
c. To make sure that the water is clear
d. To add microscopic organisms that will make
the water safe to drink.
Answer
A) To kill microscopic organisms that
could make people sick