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WorksheetsMidterm Review
Total questions: 54
Worksheet time: 27mins
Name
Class
Date
1.
What are valence electrons?
a)
Electrons that do not have a negative charge
b)
The outermost electrons in an atom
c)
Electrons that do not change the charge of the atom
2.
What is the charge of an atom that has gained 2 electrons?
a)
(+)2
b)
0
c)
-2
3.
What model did John Dalton create?
a)
plum pudding
b)
planeary
c)
solid sphere
4.
What model did JJ Thompson create?
a)
solid sphere
b)
plum pudding
c)
planeary
5.
What model did Niels Bohr create?
a)
planeary
b)
solid sphere
c)
plum pudding
6.
How many protons are in Neon?
a)
10
b)
11
c)
20
7.
How many neutrons are in Neon?
a)
14
b)
10
c)
20
8.
What is the overall charge of this atom?
a)
(+)2
b)
8
c)
-2
9.
What subatomic particle has a neutral charge?
a)
proton
b)
electron
c)
neutron
10.
What subatomic particle has a positive charge?
a)
neutron
b)
proton
c)
electron
11.
What subatomic particle has a negative charge?
a)
electron
b)
neutron
c)
proton
12.
Where is the proton found?
a)
In the nucleus
b)
Outside the nucleus
13.
Where is the neutron found?
a)
In the nucleus
b)
Outside the nucleus
14.
Where is the electron found?
a)
In the nucleus
b)
Outside the nucleus
15.
The majority of an atom is...
a)
Made of empty space
b)
Made of plasma
c)
Charged with negative energy
16.
What is the definition of Evaporation?
a)
gas to solid
b)
solid to gas
c)
liquid to gas
17.
What is the definition of Condensation?
a)
gas to liquid
b)
liquid to gas
c)
solid to gas
18.
What is the definition of Sublimation?
a)
gas to solid
b)
solid to gas
c)
liquid to gas
19.
What is the definition of Deposition?
a)
gas to liquid
b)
gas to solid
c)
solid to gas
20.
Which of the following are heterogeneous? (Choose 2)
a)
milk
b)
salad
c)
trail mix
d)
gatorade
21.
Which of the following are homogeneous? (Choose 2)
a)
milk
b)
salad
c)
trail mix
d)
gatorade
22.
What state of matter is described by high energy, charged particles
a)
solid
b)
liquid
c)
gas
d)
plasma
23.
What state of matter is described by constant volume, changing shape?
a)
solid
b)
liquid
c)
gas
d)
plasma
24.
What state of matter is described by volume and shape change to fill container?
a)
solid
b)
liquid
c)
gas
d)
plasma
25.
What state of matter is described by constant shape and volume
a)
solid
b)
liquid
c)
gas
d)
plasma
26.
Which properties are chemical? (Choose 2)
a)
melting point
b)
flammability (can it burn)
c)
ability to react with an acid
d)
density
27.
Which properties are physical? (Choose 2)
a)
melting point
b)
flammability (can it burn)
c)
ability to react with an acid
d)
density
28.
Which are physical changes? (Choose 2)
a)
chopped firewood into peices
b)
made a fire by burning wood
c)
cooked an egg
d)
melted chocolate onto smores
e)
watched exploding fireworks change colors
29.
Which are chemical changes? (Choose 3)
a)
chopped firewood into peices
b)
made a fire by burning wood
c)
cooked an egg
d)
melted chocolate onto smores
e)
watched exploding fireworks change colors
30.
Which describes a suspension?
a)
milk
b)
tea
c)
italian dressing
31.
Which describes a solution?
a)
milk
b)
tea
c)
italian dressing
32.
Which describe a colloid?
a)
milk
b)
tea
c)
italian dressing
33.
Classify: soda
a)
element
b)
compound
c)
mixture
34.
Classify: hydrogen (H)
a)
element
b)
compound
c)
mixture
35.
Classify: Water (H2O)
a)
element
b)
compound
c)
mixture
36.
If a box of paperclips weighs 30 grams and has a volume 5 milliliters, what is the box's density?
a)
30
b)
6
c)
5
37.
What measures length?
a)
grams
b)
meters
c)
seconds
d)
liters
38.
What measures mass?
a)
grams
b)
meters
c)
seconds
d)
liters
39.
What measures time?
a)
grams
b)
meters
c)
seconds
d)
liters
40.
What measures volume?
a)
grams
b)
meters
c)
seconds
d)
liters
41.
Graphs are a visual display of data or information. What type of graph is best to use when comparing parts of a whole?
a)
pie/circle graph
b)
line graph
c)
bar graph
42.
I am testing the effect of different levels of protein intake on the growth rate of rats. What is the independent variable?
a)
breed of rat
b)
growth rate
c)
protein intake
43.
I am testing the effect of different levels of protein intake on the growth rate of rats. What is the dependent variable?
a)
breed of rat
b)
growth rate
c)
protein intake
44.
I am testing the effect of different levels of protein intake on the growth rate of rats. What is the controlled variable?
a)
breed of rat
b)
growth rate
c)
protein intake
45.
Which type of graph would be the best to use when showing how data changes over time?
a)
pie/circle graph
b)
line graph
c)
bar graph
46.
A scientist tested three different brands of AAA batteries to determine which one lasts the longest. What is the independent variable in this test?
a)
how long the battery lasts
b)
brand of battery
c)
type of clock
47.
A scientist tested three different brands of popcorn to determine which one has the fewest unpopped kernels after being in the microwave for three minutes. What is the dependent variable?
a)
Popping container
b)
Brand of popcorn
c)
Number of unpopped kernals
48.
What is the best graph for representing data in categories?
a)
pie/circle graph
b)
line graph
c)
bar graph
49.
7.2 kilometers= _______________ meters
a)
720
b)
72
c)
7200
50.
3 grams = ____________ centigrams
a)
30
b)
300
c)
3000
51.
123 millimeters = _____________ kilometers
a)
0.123
b)
0.000123
c)
0.00123
52.
120 centimeters = ______________ decimeters
a)
1200
b)
1.2
c)
12
53.
Presley was running away from Morgan Wallen's bodyguards after a concert. She ran a total of 2,500 meters. How many Kilometers did Presley run?
a)
2.5 kilometers
b)
1,250 Kilometers
c)
250 kilometers.
54.
This scientist discovered that some elements are radioactive and emit electrons.
a)
Rosalind Franklin
b)
Dorothy Hodgkin
c)
Marie Curie
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