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