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8th Grade Science Review Flashcards | StudBud
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8th Grade Science Review
8th Grade Science Review
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8th Grade Science, basics of biology/earth science
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
Qualitative observations are descriptions of numbers or amounts
False
True
2
What is a chunk of rock called if it impacts the Earth?
Asteroids
Meteor
Meteoroid
Meteorite
3
In a free fall, gravity is the only force acting on an object.
False
True
4
In an experiment, only one variable, the dependent variable, is changed at a time.
False
True
5
What is the density of a cube with 10in sides and a mass of 10000
100000
1000
10
100
6
Why are objects a specific colour?
Because of the type of image they create
Because of their ability to refract light
Because their atoms are moving at a certain speed
Because of pigment reflecting & absorbing light
7
List the order of the outer planets in reverse order.
Saturn, Jupiter, Neptune, Uranus
Jupiter, Saturn, Uranus, Neptune
Neptune, Uranus, Saturn, Jupiter
Uranus, Neptune, Saturn, Jupiter
8
Which definition best describes evolution
The chemical properties of biotic and abiotic factors.
Interaction of different communities in an ecosystem.
Change over time
The act of going around the Sun
9
Which of the following organelles sends and receives messages
Golgi Body
Lysosome
Nucleus
Cell Membrane
10
What is the fifth phase of the moon (from a new moon)?
Waning Crescent
Waxing Crescent
Waxing Gibbous
Waning Gibbous
11
What does an anemometer measure?
Air Pressure
Wind Speed
Humidity
Wind Direction
12
What causes the seasons?
Our proximity to the sun during orbit
A general decrease in solar emissions throughout the year.
The position of the other planets
the 23 degree axis tilt of the Earth
13
Newton's 3rd Law states "For every action there is an equal or opposite reaction."
False
True
14
What are isobars?
Lines that divide areas of equal humidity
Lines that show wind speed
Lines that show fronts
Lines that connect points of equal air pressure
15
What is an indicator of a warm?
Rise in Temperature
Decrease in temperature
Rise in pressure
Decrease in pressure
16
All living things are made up of...
Blood
Nucleus
Cells
Mitochondria
17
On a non-leap year, how many weeks does it take for the Earth to revolve around the Sun?
365
1
364
52
18
Which type of weather results from High Pressure systems
Warm temperatures
Clear skies
Cloudy skies
Tornados
19
Which of the following comes first in Scientific Inquiry
Scientific Law
Experiment
Inference
Question
20
Which organelles are only found in Eukaryotic cells?
Nucleus and Cell Membrane
Chloroplast and Cell Wall
Golgi Body and Nucleus
Nucleus and Nucleolus
21
What is the formula DIRECTLY stated in Newton's Second Law?
a=m/f
f=ma
a=f/m
y=mx+b
22
Cosmology is the study of the universe.
True
False
23
What kind of front is shown here?
Cold Front
Stationary Front
Occluded Front-
Warm Front
24
The force of gravity of an object is affected by what?
Distance and Mass
Mass and Velocity
Mass and Density
Distance and Density
25
What is not a sphere of earth?
Atmosphere
Geosphere
Biosphere
Astrosphere
