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Science Grade 9: Review Flashcards | StudBud
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Science Grade 9: Review
Science Grade 9: Review
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science grade 9 year end review #science #gr9
Flashcards
42 cards
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Questions
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Answers
1
An anode is a ....
positive electrolyte
negative electrolyte
positive electrode
negative electrode
2
Electricity: Which statement CORRECTLY describes an atom?
None if the above
Electrons orbit around the nucleus
Neutrons orbit around the nucleus
Protons orbit around the nucleus
3
Space: These planets are gas giants, or also known as...
Gaseous planets
Jovian
Saturn
Terrestrial
4
Electricity: The units of measure for the current in a circuit is the amp
False
True
5
Electricity: Which is NOT the Law of Electrostatics?
Charged objects attract neutral objects
Unlike charges attract each other
Like charges repel each other
Charges are either positive or negative
6
Biology: Which type of organism is a direct user of the sun's energy?
Decomposer
Consumer
Producer
Scavenger
7
Chemistry: what is the max number of electrons found on the 2nd shell of an atom?
6
10
8
2
8
What is the relationship between a crocodile and the small bird that cleans its teeth?
Mutualism
Commensalism
Symbiosis
Parasitism
9
This indicator turns red when in contact with an acid
red litmus
blue litmus
phenolphthalein
Bromothymol blue
10
Chemistry: Fe is a(n)...
Mixture
Element
Compound
11
Chemistry: NaCl is a(n)...
Element
Compound
Mixture
12
Rain is...
Biotic
Abiotic
13
The family each with once outer valence electron
Noble Gases
Alkaline Earth Metals
Halogens
Alkali Metals
14
This family is inert
Halogens
Alkaline Earth Metals
Alkali Metals
Noble Gases
15
Are you going to pass your PAT?
yes
I'm not sure
no
16
Chemistry: Au
Argon
Antimony
Silver
Gold
17
Chemistry: What changes is taking place when you boil water?
Chemical
Physical
18
Omnivores eat...
None of the above
Both
Only plants
Only meat
19
CCl4 is a molecular compound named...
monocarbon tetrachloride
carbon tetrachloride
carbon tetrachlorine
monocarbon tetrachlorine
20
The relationship between humans and mosquitoes is called...
Commensalism
Parasitism
Symbiosis
Mutualism
21
Space: What keeps the planets in orbit around the sun?
Gravity, and inertia
Magnetism and inertia
Gravity and electricity
Electricity and magnetism
22
Electricity: A positively charged material has...
Less protons than usual
Fewer electrons than protons
More protons than usual
More electrons than protons
23
Chemistry: What change is taking place when you bake bread?
Chemical
Physical
24
Elements are arranged according to...
number of electrons
atomic number
atomic mass
25
Electricity: Static electrical charges are produced in an object by...
Touching the object to a battery
Connecting the object to an electrical outlet
Holding a magnet near the object
Rubbing the object with a different material
26
Electricity: Ohms are the units for...
Electric force
Resistance
Current
Voltage
27
Chemistry: Which of the following is not a pure substance?
Water
Koolaid
Zinc
Sugar
28
The family each missing a valence electron.
Noble Gases
Halogens
Alkaline Earth Metals
Alkali Metal
29
These organisms are well adapted to specific environments
Generalists
Specialists
30
Space: Two or more radio telescopes connected without wires
radio waves
spectral lines
telescopes
interferometry
31
Which planet is tilted very far on its axis?
Saturn
Mars
Neptune
Uranus
32
Space: A satellite takes 24 hr to complete orbit, and travels following earth.
Geosynchronous satellite
Hubble telescope
low earth orbit
Telephone satellite
33
Increasing the number of lights in a parallel circuit increases the lights brightness
False
True
34
The process by which those best suited will survive
Natural Selection
Artificial Selection
35
The stuff that comes out of a chemical reaction...
mass
molecules
products
reactants
36
Enviro chem:What is a secure landfill?
covered with soil each day
one that has guards
Compacted each day
Lined with an impermeable layer
37
Elements on a bag of fertilizer are listed in this order...
potassium, nitrogen, potassium
nitrogen, potassium, phosphorous
phosphorous, potassium, nitrogen
nitrogen, phosphorous, potassium
38
Includes binary fission, spores, and budding
sexual reproduction
asexual reproduction
39
Electricity: Uncharged particles in an atom are called...
Nucleus
Protons
Electrons
Neutrons
40
An example of an acid-base neutralization is...
eating vinegar
mixing coolaid
liming lakes
forming NaCl
41
In DNA this nitrogen base bonds with guanine
uracil
thymine
adenine
cytosine
42
Space: The azimuth coordinate for due west is...
270
90
180
0
