stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Science EOG Bellringers Flashcards | StudBud
Explore
/
Science EOG Bellringers
Science EOG Bellringers
68 terms
·
StudBud Administration
·
590 plays
EOG Review Bellringer questions for 8th Grade Science.
Flashcards
68 cards
F
Practice quiz
P
Host live
L
Questions
68
Answers
1
Where does energy in a food web originate?
decomposer
producer
secondary consumer
primary consumer
2
Which of these is an aquatic food web?
kelp forest
marshland
pine forest
petrified forest
3
Why is digestion and cellular respiration important for the body?
increases the amount of available saliva
provide oxygen to all vital organs
eliminates waste products from the body
provides nutrients for energy
4
Vaccines are helpful because
they cure viral diseases
they often change
they help prevent diseases
they cure bacterial diseases
5
Steel is classified as _______________.
an element
a heterogeneous mixture
a homogeneous mixture
a compound
6
Fossils are mostly found in ....
igneous rocks
sedimentary rock
lava
metamorphic rocks
7
Which of these is one of the most important metalloids?
silicon
plastic
gold
silver
8
Penicillin is given for an infection caused by
a fungus
a virus
a bacteria
a parasite
9
What determines an element's place on the periodic table of elements?
The number of electrons
Whether it's a gas, solid, or liquid
The number of protons
The atomic mass
10
Farmers exposed to pesticides were commonly diagnosed with ________________.
influenza
skin cancer
tuberculosis
malaria
11
A fossil of a ___________ was found in the lowest level of sedimentary rock.
single-celled organism
mammal
dinosaur
fern
12
Sonar measures _____________.
ocean depths
fossils age
tree width
mountain height
13
What could increase the amounts of CO
2
in the atmosphere?
deforestation
burning fossils fuels
all of these
increased animal populations
14
What is added to water to kill bacteria?
sodium and chlorine
fluorine and argon
potassium and glucose
chlorine and fluorine
15
Why is boron considered a metalloid?
It is malleable and brittle.
It has properties of metals and nonmetals.
It has properties of nonmetals.
It conducts electricity and is a gas.
16
Rise in salinity in an estuary would result in
a rise in salt tolerant organisms
decrease in amount of available water
no change to the environment
a rise in salt intolerant organisms
17
Which symbiotic relationship is an example of commensalism?
bee and flower
tick and dog
lion and giraffe
shark and remora fish
18
Which of these is the most reactive elements?
Alkali metals
Noble gases
Lanthanides
Metalloids
19
Which of these is a compound?
sugar
gold
oxygen
magnesium
20
Why is the Covid-19 outbreak a pandemic?
A lot of people in the United States were infected.
Many people across several countries were infected.
It was contagious.
It was incurable.
21
What is true about energy in a food web?
Energy is created.
Energy is lost is one moves up the food web.
Energy is gained as one moves up the food web.
Energy remains the same.
22
Which one of these is a chemical change?
torn paper
melting ice cube
rusty nail
shattered glass
23
What is an example of nonpoint source pollution?
oil spills from a supertanker
straight piping from a house
runoff from roads
factory discharge
24
What do salt and water have in common?
They are both compounds.
They are both elements.
They are both high reactive.
They are both mixtures.
25
Lead paint was discovered to damage ___________ cells.
skin
brain
cancer
blood
26
What health condition is affected by pollution?
asthma
diabetes
hypoglycemia
skin cancer
27
Which describes sulfur?
high luster metalloid
brittle metalloid
ductile metal
malleable metal
28
Which of these is a compound?
air
salt
saltwater
gold
29
What is a tributary?
someone who helps build a dam
where a river empties into an ocean
soil deposited at the mouth of a river
a small river or creek that flows into a larger river.
30
Which of these has the least impact on land and natural resources?
wind farms
fracking for natural gas
hydroelectric dams
coal burning factory
31
A solid has a mass of 0.65 grams and volume of 2 cm
3
. What does this mean?
It will have positive buoyancy and float.
It is a gas.
It will have negative buoyancy and sink.
It will have neutral suspended buoyancy.
32
An upwelling will occur from _________ to the ocean's surface.
benthic zone
intertidal zone
seashore
abyssal plain
33
Where do viruses carry out their "life" functions?
In a living host
In a parasite
In a cell's nucleus.
In the protein coat
34
What area of science studies new vaccines?
geology
chemistry
hydrology
microbiology
35
Why do scientists study ice cores?
study the composition/difference of atmosphere in the past
to locate the ancient mammoth
to find fossil ages
to predict present temperature and weather
36
There are 2 molecules of water in the reactants, how many atoms of hydrogen are in the product?
4
8
16
2
37
Humans get nutrients from....
oxygen.
the sun.
food.
water.
38
Which element is not a noble gas?
krypton
carbon
argon
neon
39
Why is carbon dioxide not on the periodic table?
It is a mixture.
It is a gas.
It is, because it's an element.
It is a compound.
40
Which of these is not an element?
air
krypton
oxygen
silver
41
Chemical reactions cause
there is no change
bonds to break and atoms to rearrange
atoms to rearrange
bonds to break
42
Evolution involves change over ____________.
time and occurs quickly
species.
time and occurs slowly
time and occurs at a constant rate.
43
What element combines with chlorine to make salt?
K
Na
C
I
44
Where do decomposers get their energy from?
oxygen
water
dead organic material
sun and soil
45
Bacteria and viruses ...
both have a cell wall
both can be spread person to person
both have ribosomes
both have DNA bundles in the cytoplasm
46
Mutagens are related to human health, because ....
They cause cancer.
They are used to create antibiotics.
They help create insulin for diabetics.
They are used to create vaccines.
47
The opposite of deforestation, in which trees and vegetation are replanted in mined areas is
sedimentation
reclamation
flocculation
uniformitarianism
48
What method of dating determines the specific age of rocks and is used to date the Earth?
Relative Dating
Law of Superposition
Continental Drift
Radiometric (Absolute) Dating
49
Why are there fewer organisms in the benthic zone?
amount of light
amount of food
amount of soil
amount of plankton
50
Which of these is a mixture?
air
aluminum
salt
water
51
When a plant-like organism lives at the bottom of the ocean it uses ______ to create its food.
flocculation
photosynthesis
absorption of nutrients from the soil
chemosynthesis
52
Most of earth's fresh water is _______________.
saltwater
liquid
gas
solid
53
What is the energy source that an animal needs to carry out life processes?
light absorbed by chloroplasts
sugar broken down to ATP in mitochondria
proteins in ribosomes
water in vacuoles
54
________ causes algal bloom when water receives an excess of nitrogen from fertilizer runoff.
eutrophication
chemosynthesis
extinction
flocculation
55
If you want to find a material that conducts electricity on the periodic table look for ...
metals on the right of the stairstep
nonmetals to the left of the stairstep
metals on the left of the stairstep
nonmetals on the stairstep
56
What renewable source of energy might cause harm to fish and increase water temperatures?
Building coal burning power plants.
Building wind turbine farms.
Creating geothermal power plants.
Building hydroelectric dams.
57
Burning of fossil fuels directly results in all of these but __________.
global climate change
heart disease
greenhouse gases
respiratory diseases
58
Tiny Food -- Ocean -- Produce oxygen
kelp
algae
zooplankton
plankton
59
Which of these is not a good test of water quality?
pH level
presence of bioindicators
low turbidity
phosphate level
60
Which disease can be treated with antibiotics?
influenza
malaria
herpes
pneumonia
61
Which are prokaryotes?
first organisms
animals
plants
prehistoric humans
62
Which of these will describe the change in a piece of aluminum when it is crushed?
Change in weight.
Change in density.
Change in mass.
Change in shape.
63
Where can brackish water be found?
aquifer
river basin
estuary, where a river meets an ocean
where a tributary meets a river
64
Which is abiotic?
bee
tree
bacteria
water
65
Where does algae get its energy?
plankton
nitrogen
the sun
water
66
Birds that coexist in the same area ....
will compete for food.
all of these
compete for water.
compete for shelter
67
Methane and CO
2
present in ice cores indicate...
periods of increased temperatures
periods of volcanic activity
periods of decreased temperatures
periods of extinction
68
Which of these are the best conductors?
metals
nonmetals
noble gases
metalloids
