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Unit 1 Review Chem

Total questions: 96

Worksheet time: 3hrs 59mins

Name
Class
Date
1.
The variable the is changed on purpose is..
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
2.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
3.
How do you write
8.317 x 106
in standard form?
a)
8, 371, 000
b)
83, 170, 000
c)
837, 100
d)
8, 317, 000
4.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
5.
Convert 23 cm to m
a)
2.3
b)
0.23
c)
2,300
d)
230
6.
What is the proper scientific measurement using the following instrument? 
a)
3.79 cm
b)
3. 8 cm
c)
4 cm
d)
3.50 cm 
7.
Convert 34 g to kg
a)
0.034
b)
340
c)
0.00034
d)
34
8.
If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?  
a)
sink
b)
float
9.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3?
a)
13.3 g
b)
13.3 cm3
c)
.075 g
d)
1695 cm3
10.

What is the density of a block of marble that has a volume of 310 mL and has a mass of 853 g?

a)

0.36 g/mL

b)

0.363 g/mL

c)

2.75 g/mL

d)

27.5 g/mL

11.

Which one of these does NOT change during the experiment?

a)

Independent

b)

Dependent

c)

Constant

d)

Control

12.

Which variable always goes on the y-axis (vertical)?

a)

Independent

b)

Dependent

c)

Constant

d)

Control

13.

What is the independent variable on this graph?

a)

Year

b)

Number of Visitors

c)

Visitors to a Park

d)

none of these

14.

What is the independent variable?

a)

Months

b)

Temperature

c)

Highs

d)

Lows

15.
What is the relationship between the independent variable and the dependent variable?
a)
As time increase, distance decreases
b)
As time increases, distance increases
c)
As time decreases, distance decreases
d)
As time decreases, distance increases
16.
 What kind of data was recorded on the data table?
a)
Examination Data
b)
Laboratory Data
c)
Qualitative Data
d)
Quantitative Data
17.

What is the volume of the liquid in this graduated cylinder?

a)

8.6 mL

b)

8.65 mL

c)

8.06 mL

d)

.86 mL

18.
What is the volume of liquid in this graduated cylinder?
a)
40.0 mL
b)
40.3 mL
c)
43.0 mL
d)
44.0 mL
19.

What is the volume of the water?

a)

21 mL

b)

21.5 mL

c)

20.5 mL

d)

22.0 mL

20.

The first number in scientific notation must be...

a)

Bigger than 0 and smaller than 10

b)

Bigger than 1 and smaller than 10

c)

Bigger than 0 and smaller than 9

21.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
22.
Put the following in scientific notation:
23,948
a)
23.948 x 103
b)
2.3948 x 104
c)
2.3948 x 10-4
d)
0.23948 x 105
23.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
24.
How many significant figures: 100.000 cL
a)
1
b)
3
c)
5
d)
6
25.
How many sig figs are there?
0.000008
a)
1
b)
2
c)
6
d)
7
26.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
27.
How many significant figures: 2016 m
a)
1
b)
2
c)
3
d)
4
28.
Is 20 g greater than, less than, or equal to 2 kg?
a)
greater than
b)
less than
c)
equal to
29.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
30.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
31.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
32.
What is the measuring unit for mass?
a)
centimeter 
b)
millimeter 
c)
grams 
d)
pounds
33.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
34.
What units are used to measure Density?
a)
cm3/g
b)
g
c)
g/cm3
d)
cm3
35.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
36.

Select the smallest unit.

a)

milliliter

b)

centiliter

c)

hectoliter

d)

liter

37.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

38.

15 m = _____ mm

a)

15,000

b)

1,500

c)

0.015

d)

150

39.

3.85 hg = _____ cg

a)

38,500

b)

3,850

c)

38.5

d)

0.000385

40.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
41.
How many sig. fig. are in the number below:
350.540
a)
4
b)
5
c)
6
d)
7
42.
How many sig. fig. are in the number below:
0.0005
a)
1
b)
2
c)
3
d)
4
43.
Which measurement contains 3 sig figs?
a)
200 mL
b)
20.0 mL
c)
0.02 mL
d)
0.020mL
44.
If this substance takes up 6ml of space, what is its mass?
a)
 6 ml
b)
6 grams
c)
0 grams
d)
4 grams 
45.
If this substance has a mass of 8 grams, what is its volume?
a)
8grams
b)
4ml
c)
8ml
d)
6ml
46.
What is the density of this substance? 
a)
1 g/ml
b)
1 gram
c)
1ml
d)
10 g/ml
47.
What is the density of this substance?
a)
5 grams
b)
5 ml
c)
5 g/ml
d)
 10 g/ml
48.
Which substance is the MOST dense?  ** Use the key
a)
A
b)
B
c)
C
49.
Which substance is the least dense? **Use the key 
a)
A
b)
B
c)
C
50.
Convert from meters to cm:  9 meters
a)
900 cm
b)
90 cm
c)
0.9 cm
d)
0.09 cm
51.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
52.
648 g = ____ mg
a)
6,480
b)
64,800
c)
648,000
d)
64.8
53.
42 L = ___mL
a)
4,200
b)
.0042
c)
4.20
d)
42,000
54.

What is the basic unit of mass in the metric system?

a)

Liter

b)

Meter

c)

Gram

d)

Kilometer

55.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

56.
UNDERSTANDING
If the exponent is a positive number...
a)
you will get a large number
b)
you will get a smaller number
57.
UNDERSTANDING
If the exponent is a negative number...
a)
you will get a large number
b)
you will get a small number
58.
What is it called when you go from this form to this next form?
0.0088 to 8.8 x 103
a)
Standard form to scientific notation
b)
Scientific notation to regular form
c)
Scientific notation to standard form
d)
Standard form to regular form
59.
Write in standard form: 
8 x 104
a)
8,000
b)
80,000
c)
.00008
60.
Which number is correctly written in scientific notation?
a)
5.67 x 105
b)
56.7 x 103
c)
0.567 x 106
61.
Write in scientific notation: 
0.0000378 
a)
3.78 x 10-5
b)
3.78 x 10-6
c)
0.378 x 10-5
62.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
63.
How would you write 4.3756 x 104 in standard form?
a)
437,560,000
b)
0.00043756
c)
43,756
64.
What is scientific notation?
a)
A long way to write really short  numbers
b)
A short way to write really long numbers
c)
I don't know...
d)
None of the above
65.

Which number has the lowest value

a)

8.11 x 102

b)

7.22 x 109

c)

6.33 x 105

d)

5.44 x 102

66.

Which of the following is in order from least to greatest?

a)

1, 1000, 52

b)

3 x 102, 4 x 103, 5 x 102

c)

7 x 104, 3 x 105, 5 x 107

d)

1 x 107, 2 x 106, 3 x 105

67.

Which diagram shows the MOST dense object?

a)

left

b)

center

c)

right

68.

A sample of liquid has a mass of 300 g and occupies 50 mL in a graduated cylinder. What is the density?

a)

15,000 g/mL

b)

.16667 g/mL

c)

6 g/mL

d)

Yup, still no clue

69.

A block of aluminum occupies a volume of 15.0 mL and weighs 45.0 g. What is its density?

a)

3 g/mL

b)

0.3333 g/mL

c)

675 g/mL

d)

I have no idea

70.

Which of the following is the correct definition of density?

a)

The amount of stuff in an object

b)

The amount of space an object takes up

c)

A measure of the force of gravity on an object

d)

The amount of matter (mass) packed into a space (object)

71.

Which of the following is the correct units for density?

a)

grams (g)

b)

Newtons (N)

c)

cm3

d)

g/cm3

72.

Does 1cup or 6cups of water have a higher density?

a)

1 cup

b)

6 cups

c)

They have the same density

73.

You calculated the density of an unknown substance to be 7.8g/cm3. According to the chart, which of the substances doe you most likely have?

a)

Zinc

b)

Copper

c)

Tin

d)

Iron

74.

Which substance is the most dense in this picture?

a)

Vegetable Oil

b)

Dish Soap

c)

Honey

d)

Corn Syrup

75.

Compared to material A, material B has different...

a)

Density

b)

Mass

c)

Phase

d)

Shape

76.

Which of the following substances would float in water? (Hint: water has a density of 1g/cm3)

a)

gold

b)

rubber

c)

water

d)

cork

77.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
78.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
79.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
80.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
81.
The variable that is being measured
a)
independent variable
b)
dependent variable
c)
control variable
82.
the variable that is kept the same to make sure results are caused by the thing being tested
a)
independent variable
b)
dependent variable
c)
control variable
83.
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
a)
Diameter of the ball
b)
Force acting on the ball
c)
Height that the ball bounces
d)
Height from which the ball is dropped
84.
You use your five sense to find out about the world around you. This is called______.
a)
observations
b)
data
c)
conclusion
d)
scientific method
85.

An observation that has to do with adjectives like heavy.

a)

Centimeters

b)

Inference

c)

Qualitative Observation

d)

Quantitative Observation

86.

An observation that has to do with numbers and labels like 3.5 cm.

a)

Observation

b)

Touch, Taste, Sight, Hearing, Smell

c)

Qualitative Observation

d)

Quantitative Observation

87.

Observation or Inference: I think the weather is cold.

a)

Observation

b)

Inference

88.

Observation or Inference: I notice the tree by the pond has no leaves on it.

a)

Observation

b)

Inference

89.

Qualitative or Quantitative: There is 300 mL of liquid in this beaker.

a)

Qualitative Observation

b)

Quantitative Observation

90.

Qualitative or Quantitative: I feel rough sand and a strong heat on the back of my neck.

a)

Qualitative Observation

b)

Quantitative Observation

91.

Qualitative or Quantitative: We bought 3.4 pounds of fruit.

a)

Qualitative Observation

b)

Quantitative Observation

92.

Qualitative or Quantitative: I hear a rush of wind, loud yells, and metal banging together.

a)

Qualitative Observation

b)

Quantitative Observation

93.

Qualitative or Quantitative: The green bar is 3.5 centimeters long.

a)

Qualitative Observation

b)

Quantitative Observation

94.

Which of these choices are inferences about the picture.

a)

The gorilla wants a bigger banana.

b)

The gorilla has two eyes.

c)

The gorilla will be hungry after he eats that banana.

95.

What inference could be made about this picture.

a)

The child is wearing mostly red.

b)

This is a child.

c)

The child is cold.

d)

The child is overdressed.

96.

What observation could be made about the picture.

a)

The child is feeling cold.

b)

The child will play outside.

c)

The child is dressed with many clothes

d)

The child will stay warm while he is outside.

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