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REVIEW FOR STAAR TEST

Total questions: 55

Worksheet time: 34mins

Name
Class
Date
1.

How many different elements are present in H2COCH2

a)

5

b)

4

c)

3

d)

2

2.

4CF2Cl2

a)

C = 4, F = 4, Cl = 2

b)

C = 1, F = 8, Cl = 8

c)

C = 4, F = 8, Cl = 8

d)

C = 1, F = 4, Cl = 8

3.

How many different elements are present in this molecule?

3 NH4C2H3O2

a)

15

b)

36

c)

5

d)

4

4.

How many CARBON are in this formula?

a)

5

b)

2

c)

10

d)

20

5.

What determines the reactivity of an element?

a)

protons

b)

neutrons

c)

electrons

d)

valence electrons

6.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

7.

What is the valence electron of this atom?

a)

1

b)

3

c)

4

d)

7

8.

What is the mass number of this atom of Chlorine?

a)

17

b)

18

c)

35

d)

35.453

9.

Which element in this Bohr model is highly reactive?

a)
b)
c)
d)
10.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
11.

Which element in this Bohr model is non reactive?

a)
b)
c)
d)
12.
In this image, the information in red is called the_______.
a)
Products
b)
Reactants
c)
Chemical Subscript
d)
Ingredients
13.
In this image, the information to the right of the arrow (in black) is called the_______.
a)
Product
b)
Reactant
c)
Chemical Subscript
d)
Final chemical
14.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
15.
Is the following equation balanced or unbalanced ? 
Al + O2 --> Al2O3
a)
Balanced
b)
Unbalanced
16.

 CuO+H2O → Cu(OH)2CuO+H_2O\ \rightarrow\ Cu\left(OH\right)_2  

Is the  equation balanced or unbalanced?

a)

balanced

b)

unbalanced

17.
A 500-gram block of solid cheese is melted in a pot. Which is most likely the mass of the cheese after it is melted?
a)
500 grams, because the cheese does not gain or lose mass just because it was melted
b)
499 grams, because some of the cheese evaporates as it melts
c)
502 grams, because the cheese absorbs heat as it melts
18.

In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B have?

a)

4g

b)

5g

c)

9g

d)

14g

19.
If reaction starts with 20g of reactants it should produce 
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
20.
In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?
a)
17g
b)
2g
c)
7g
d)
None of the above
21.
12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed? 
a)
28 g
b)
4g
c)
30g
d)
12g
22.
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
a)
62 
b)
38
c)
24
d)
14
23.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
24.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
25.

Calculate the Net Force.

a)

60N, Left

b)

40N, Right

c)

0N

d)

60N, Right

26.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
27.
In the distance vs. time graph, what type of motion does the line represent? 
a)
Speed
b)
Velocity
c)
Acceleration
d)
Deceleration
28.
Describe the speed of the object from 4-6 seconds using the distance vs. time graph.
a)
Increasing speed
b)
Decreasing speed
c)
Not moving
d)
Constant speed
29.
Describe the speed of the object from
0-2 seconds using the distance vs. time graph.
a)
Constant speed
b)
Speeding up
c)
Slowing down
d)
Not moving
30.
What is the object doing from 10-12.5 seconds?
a)
Slowing down 
b)
Returning to the starting position
c)
Speeding up
d)
Not moving
31.
Which graph is would represent a decrease in speed?
a)
Graph A
b)
Graph B
c)
Graph C
d)
The object is not decreasing in speed in any of these graphs
32.
A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
33.
Alan travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
34.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
35.

A train travels 225 kilometers in 2.5 hours. Calculate the train's speed.

a)

95 mph

b)

90 km/h

c)

90 h/km

d)

90 m/s

36.

Which of the following is NOT a form of precipitation?

a)

snow

b)

hail

c)

rain

d)

clouds

37.
What kind of weather happens during a warm front?
a)
Light rain or light snow
b)
Heavy rain or heavy snow
c)
Clear skies, temp. warms
d)
Clear skies, temp. cools
38.
What kind of weather happens during a cold front?
a)
Light rain or light snow
b)
Heavy rain or heavy snow
c)
Clear skies, temp. warms
d)
Clear skies, temp. cools
39.
What kind of weather happens after a warm front moves out?
a)
Light rain or light snow
b)
Heavy rain or heavy snow
c)
Clear skies, temp. warms
d)
Clear skies, temp. cools
40.
There is no front in Nebraska. What is the weather like in Nebraska?
a)
Clear skies
b)
Severe weather
c)
Light rain or light snow
d)
Thunderstorms or snowstorms
41.
What is happening along the warm front in Illinois? 
a)
Clear skies
b)
Severe weather
c)
Light rain or light snow
d)
Thunderstorms or snowstorms
42.
What is happening in Missouri along the cold front?
a)
Clear skies
b)
Severe weather
c)
Light rain or light snow
d)
Heavy rain or heavy snow
43.

Hurricanes gather __________ and __________ through contact with warm ocean waters

a)

sand, dust

b)

heat, energy

c)

fish, plants

44.

What makes a hurricane lose energy?

a)

Land

b)

Increased low pressure

c)

warm moist air

d)

warm ocean waters

45.

What type of weather is generally associated with a low pressure system?

a)

fair-weather, beautiful clear skies

b)

Cloudy skies, some moist air, possible precipitation, stormy weather

c)

cloudy skies, dry air

d)

cloudy with a chance of meatballs

46.

Tectonic Plate movement is caused by ______________.

a)

the rotation of the Earth

b)

ocean tides

c)

convection currents in the mantle

d)

the moon's gravity

47.
In which type of boundary do the plates move away from each other?
a)
convergent
b)
normal
c)
divergent
d)
transform
48.
At which type of plate boundary does seafloor spreading occur?
a)
Tranform
b)
Convergent
c)
Divergent
d)
Subductive Zone
49.
Which of these events can ONLY happen on a DIVERGENT BOUNDARY?
a)
Rift Valley
b)
Mountain
c)
A peninsula
d)
An Insanely complex, long answer that you will click out of instinct. 
50.

When a divergent boundary happens under continental crust, it's called a:

a)

Rift Valley

b)

Block Mountain

c)

Folded Mountain

d)

Mid-Ocean Ridge

51.

Rift Valleys and mid-ocean ridges are associated with...

a)

divergent boundaries

b)

transform boundaries

c)

convergent boundaries

d)

plate boundaries

52.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
strike slip
53.
What geologic feature/event would you most likely to find at a convergent boundary between two pieces of continental crust?
a)
Volcano
b)
Mountain
c)
Rift
d)
Island Arc
54.
During sea floor spreading, molten material rises up from the mantle...
a)
along the continents
b)
at the mid ocean ridges
c)
deep ocean trenches
d)
at north and south poles
55.
Which ocean is expanding due to a mid-ocean ridge (divergent boundary)?
a)
Indian
b)
Dead Sea
c)
Atlantic
d)
Artic

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