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WorksheetsSUPER ULTRA MEGA STAAR REVIEW
Total questions: 26
Worksheet time: 2hrs 10mins
If a sample has a volume of 20 mL and a mass of 5 g. What is the sample's density?
0.25 g/mL
4 g/mL
15 g/mL
25 g/mL
If a sample has a volume of 20 mL and a mass of 5 g. What is the sample's density?
0.25 g/mL
4 g/mL
15 g/mL
25 g/mL
This part of the atom has very little mass but takes up most of the space of the atom (contains negatively charged particles).
Electron Cloud
Electron
Proton
Neutron
How Many Valence Electrons does this Group of elements have?
1
2
3
4
Which of the atom models above represents a stable atom that will not react?
Model A
Model B
Model C
Model D
Based on what you know about the organization of the Periodic Table, which two elements shown above would have the most similar chemical properties?
Sodium and Magnesium
Potassium and Calcium
Potassium and Magnesium
Sodium and Potassium
The most reactive metal is one with -
4 valence electrons
2 valence electrons
1 valence electron
3 valence electrons
When determining an element's chemical properties, the most important subatomic particle to look at is -
Protons
neutrons
valence electrons
positrons
Which of the following elements is represented by the above graphic?
Sulfur
Argon
Chlorine
Arsenic
Compounds are different than elements because compounds are -
A combination of two or more elements
Made from the same type of atoms
not able to be broken down into parts
a pure substance
What does malleable mean?
able to bend
can be used for wire
will break easily
is shiny
How would this element be classified?
Metal
Nonmetal
Metalloid
Metamorphic
Rows on the period table are called _____ while columns are called _____.
groups, families
periods, groups
groups, periods
families, groups
All of the following are examples of chemical reactions, except-
An unexpected color change
An unexpected temperature change
Gas formation
A solid becoming a liquid
How many atoms of sulfur are in each molecule of H2SO4?
1
2
4
7
How many different elements are in an amino acid with the formula C5H11NO2S?
5
18
20
4
If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.
hawk population
rabbit population
wild flower population
grass population
Which of the following is a unit for acceleration?
km/s
mi/hr
m/s2
ft
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
After 0.5 seconds, the blue car had traveled 2 meters across the floor. What is the average speed of the blue car in m/sec?
0.25 m/sec
2.5 m/sec
0.25 cm/sec
4 m/sec
At which point is potential energy greatest?
W
X
Y
Z
In the diagram given, what happens as we move to the left?
Stars get larger
Stars get colder
Stars get hotter
Where is the object not moving? (click ALL the correct answers).
A-B
O-A
C-D
B-C
Which could be an example of a balanced force?
An asteroid moving at a constant speed through space
A box of dishes falling from a counter
A car accelerating from a stop sign
A rocket taking off
What causes the Earth to experience different seasons?
The temperature of the Sun
The location of the moon
Earth's Tilt
Warm water near the equator
What does a hurricane NEED in order to form?
Cold water
Wind
Warm Water
