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*STAAR 8th Grade Science Review Flashcards | StudBud
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*STAAR 8th Grade Science Review
*STAAR 8th Grade Science Review
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prepare for 8th grade science STAAR Test
Flashcards
41 cards
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1
Clouds of gas and dust. Sites of star formation. Remains of dead or dying stars
galaxy
comet
nebulae
black hole
2
When speed is combined with direction it is called which of the following
distance
constant speed
velocity
acceleration
3
A neutron has which charge
positive
negative
no charge
4
underwater Trenches are caused by
convergent
transform
divergent
subduction
5
distance light can travel in a vacuum in one year; equal to approximately 9.5 X 10
12
km
visible light
galaxy
light year
acceleration
6
Fossil record and rock correlation support this theory
newton's laws
continental drift
evolution
plate tectonics
7
Elements in the same period have the same number of what
valence electrons
neutrons
protons
energy levels
8
Which of Newton's Law is responsible for lift off of the space shuttle?
Newton's 1st Law
Newton's 3rd Law
Newton's 2nd Law
9
tendency of a substance to undergo chemical changes in a system
reactivity
metal
frequency
conductor
10
Objects in space, made of gases, which produce their own light and heat
planet
star
galaxy
nebulae
11
If the woman in the picture does not move is work being done?
No
Yes
12
Satellites move at a constant speed around celestials bodies due to which law
2nd
3rd
1st
13
the formation of solids from a solution
precipitate
melting
freezing
solidification
14
This is an eclipse but it could also be which moon phase?
third quarter
full
new
first quarter
15
An object at rest stays at rest until an unbalanced force acts on it, which law is this?
1st
2nd
3rd
16
Which of the following is an example of a chemical change?
cutting a watermelon
bubbles forming
crushing almonds
food coloring in water
17
Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars
False
True
18
You are in a car driving and the breaks are applied, you fly forward, which Law is this?
Law of Action-Reaction
Law of Inertia
Newton's 2nd Law
Law of Force and Acceleration
19
Used for measuring the intensity of the energy of celestial objects
x rays
radio waves
light waves
microwaves
20
Which subatomic particle has a positive charge?
nucleus
neutron
proton
electron
21
Law of conservation of mass states
matter is destroyed
matter is neither created or destroyed
matter is not created
Matter is created
22
Volcanoes are caused by which plate tectonic boundary
divergent
convergent
transform
23
The following organisms are producers because they contain which unique organelles
cell wall and nucleus
cell wall and chloroplast
cell membrane and chloroplasts
chloroplast and mitochondrion
24
Which form of energy is used to power the vehicle?
thermal energy
mechanical energy
solar energy
chemical energy
25
When plate boundaries form mountains this is an example of which boundary?
convergent
divergent
transform
subduction zone
26
fill in the blank convergent means _________
sliding
colliding
dividing
subduction
27
In the equation 3H
2
O, the number 2 is called what
atomic mass
coefficient
subscript
atomic number
28
The smallest unit of life is the
atom
cell
nucleus
organism
29
The number of electrons in the last shell of an atom is called what
period
valence
group
nucleus
30
Reactivity increases from left to right in a period
true
false
31
How many hydrogen are found in this molecule? (NH
4
)
2
CO
3
9
8
4
6
32
The mass (g) of substances in the reactants is equal to the mass of substances in the
coefficient
subscript
products
equation
33
The valence electron number determines which of the following
proton number
size of the atom
similar characteristics
identity
34
Which particle is found in the cloud
nucleus
protons
neutrons
electrons
35
Genetically altering the DNA of a plant or animal is called
evolution
alternation of generation
selective breeding
natural selection
36
"APE" in APE MAN represents which of the following
A-P=E
A=P=E
A=P+E
A+P=E
37
An organism that feeds off of another organism, in order to survive(e.g., tick, flea, tapeworm)
predator
host
prey
parasite
38
Which type of galaxy is shown below?
spiral
elliptical
irregular
round
39
This crustal feature was done to prevent which of the following processes
erosion
extinction
deposition
weathering
40
a system of stars and associated matter, held together by gravitational attraction
galaxy
Moon
solar system
universe
41
The mass of an atom is the combination of which two particles
electron and neutron
electron and proton
proton and nucleus
proton and neutron