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Practice STAAR Review 2024 Chavez science Flashcards | StudBud
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Practice STAAR Review 2024 Chavez science
Practice STAAR Review 2024 Chavez science
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1
This time-distance graph shows an object
slowing down
at rest
accelerating
at constant velocity
2
The color on the HR Diagram represents which of the following?
Size
Brightness
Luminosity
Temperature
3
Which type of galaxy contains the greatest number of nebulas?
Star
Elliptical
Irregular
Spiral
4
What Energy Transformation takes place in a flashlight?
Electrical → Radiant → Chemical
Mechanical → Radiant → Chemical
Chemical → Electrical → Radiant
Nuclear → Electrical → Radiant
5
Which list shows the properties of metals?
malleable, ductile, brittle
dull, insulators & brittle
good conductors of heat, dull, shiny
good conductor of electricity, shiny, malleable
6
What are the rows called on the Periodic Table and what do they tell you about an elements atoms?
Periods, and they tell you number of energy levels
Groups, and they tell you number of rings
Periods, and they tell you reactivity
Families and they tell you the number of electron shells
7
How many types of electromagnetic waves exist?
1
1,000
2
7
8
Which correctly describes the difference in speed and velocity?
Speed is change, Velocity is time, distance and direction.
Speed is time, distance, and direction, Velocity is time and direction
Speed is time and distance, Velocity is time, distance, and direction
Speed is change, Velocity is time, distance and direction.
9
The integumentary system is compromised of __________.
nerves
muscles
bones
skin
10
A chemical formula includes the symbols of the elements and
subscripts
that indicate
how many atoms of each element
the total number of elements in the formula
the charges on the element's atoms
the number of molecules of each element
11
How many neutrons are found in one atom of iron (Fe)?
30
26
29
56
12
Spring tides occur...
during first & third quarter
during waning phases
during waxing phases
during new & full moon
13
What is an example of newtons 3rd laws of motion
Throwing a lighter object will create more acceleration
What goes up will stay up
When you throw a bouncy ball on the ground and it comes back
when you bounce a basketball in foam.
14
Photosynthesis produces this energy transformation
thermal to chemical energy
electric to radiant energy
gravitational to chemical energy
radiant to chemical energy
15
How fast is he travelling before the jump? Time = 5 seconds. Distance = 37.5 meters.
7.5m/s
187.5m/s
19m/s
3.75m/s
16
The number of protons an atomc contains is identified by the ____ ____ on the periodic table.
atomic #
group #
row #
mass #
17
Dichotomous Key
H
J
F
G
18
Coefficients in a chemical formula represent...
The number of atoms
The number of protons
The names of elements
The number of molecules
19
Which of these is the formula for calculating speed?
time ÷ distance
time x distance
distance ÷ time
distance x time
20
What type of front and what weather is associated with this symbol?
Warm front, Severe storms
Cold front, Light rain
Cold front, Severe storms
Warm front, Light rain
21
How many TOTAL atoms?
14
11
12
6
22
Which phases of the moon would be a crescent moon?
2 and 8
1 and 5
6 and 8
4 and 6
23
What causes global winds to move in the pattern shown in the picture?
the Coriolis effect
convection in the asthenosphere
ocean currents
the Corniholis effect
24
Which of the following best describes the forces being applied in this situation?
The forces are balanced, and the net force is zero
forces are unbalanced, and the force of Horse 1 is greater
forces are unbalanced, and the force of Horse 2 is greater
The forces are balanced, and the force of Horse 1 is greater
25
What is a chemical reaction?
A change to something to produce a new chemical.
A reaction between an acid and a base.
Everything that reacts to chemicals.
The smallest type of matter in the world.
26
The first
living things
in all food chains and food webs are...
Consumers
The Sun
People
Plants
27
Hurricanes usually form over what temperature of water?
warm
both cold and warm
cold
Hurricanes form over land
28
The sum of the number of protons and neutrons inside the nucleus is called the __________.
element number
nucleus number
mass number
atomic number
29
The red shift of galaxies tells us
The age of the universe
galaxies further away are larger
The universe is expanding
The universe is shrinking
30
Which of the following examples accurately describes an object that is accelerating?
An airplane moving at 500 km/hr.
A student running in a circle
A ball sitting motionless on the floor.
A bike moving backward at 3 meters per second.
31
Calculate Density. Mass = 125 g, Volume = 5 cm
3
30 cm3
20 g/cm3
25 g/cm3
25 cm3
32
Elements in group 13 have _________ valence electrons.
2
3
1
33
All of the following are effects of human activity on groundwater and watersheds EXCEPT
Contamination of groundwater from pesticide use
Extensive surface runoff due to urban concrete
Pollution of groundwater due to bad management of a landfill
Salt water contamination of freshwater due to a storm surge
34
What is the force applied to an 40 kg object accelerating at a rate of 40 m/s²?
0 N
80 N
1 N
160 N
35
What factors influence the strength of attraction (gravity) between two objects?
mass and distance
size and density
composition and location in the Universe
weight and volume
36
What is the main
cause of the seasons
?
The tilt of the Earth
The revolution of the Sun
The distance from the Sun
The rotation of the Earth
37
At what point does the skateboarder have the most potential energy?
3
2
1
38
How many atoms are in the following chemical formula for aspirin -- C₉H₈O₄?
3
17
21
20
39
How does the Theory of Plate Tectonics explain the location of same fossils at Points A and B?
Humans transported the animals from point A to point B.
The continents were once joined together.
The animals swam from one continent to the other
The animals developed independently on both continents.
