WorksheetsCHM 131 - Chapter 1
Total questions: 68
Worksheet time: 2hrs 50mins
Anything that can change in an experiment is called a ___________
measurement
variable
observation
qualitative
The scientific method is...
ways scientists make problems and ask questions
ways scientists never solve problems
ways scientists answer questions and solve problems
The first step in the scientific method is...
ask a question / hypothesis
conduct an experiment
analyze results / make conclusions
make observations
The second step in the scientific method is...
ask a question / hypothesis
conduct an experiment
analyze results / draw conclusions
make observations
The third step in the scientific method is...
ask a question / hypothesis
conduct an experiment
analyze results / draw conclusions
make observations
The fourth (last) step in the scientific method is...
make observations
ask a question / hypothesis
conduct the experiment
analyze the results/draw conclusions
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
During an assessment in the emergency room, a nurse writes that the patient has a resting pulse of 30 beats/min.
an observation
a hypothesis
an experiment
a conclusion
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
Repeated studies show that lowering sodium in the diet leads to a decrease in blood pressure.
an observation
a hypothesis
an experiment
a conclusion
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
A nurse thinks that an incision from a recent surgery that is red and swollen is infected.
an observation
a hypothesis
an experiment
a conclusion
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
Drinking coffee at night keeps me awake.
an observation
a hypothesis
an experiment
a conclusion
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
I will try drinking coffee only in the morning.
an observation
a hypothesis
an experiment
a conclusion
Identify each of the following as an observation, a hypothesis, an experiment, or a conclusion:
If I stop drinking coffee in the afternoon, I will be able to sleep at night.
an observation
a hypothesis
an experiment
a conclusion
A bullet found at a crime scene has a mass of 15.24 g. What are the place values for the "1" in the digits in the mass of the bullet?
Note that place values ending with the suffix -ths refer to the decimal places to the right of the decimal point
(a)
A bullet found at a crime scene has a mass of 15.24 g. What are the place values for the "5" in the digits in the mass of the bullet?
Note that place values ending with the suffix -ths refer to the decimal places to the right of the decimal point
(a)
A bullet found at a crime scene has a mass of 15.24 g. What are the place values for the "2" in the digits in the mass of the bullet?
Note that place values ending with the suffix -ths refer to the decimal places to the right of the decimal point
(a)
A bullet found at a crime scene has a mass of 15.24 g. What are the place values for the "4" of the digits in the mass of the bullet?
Note that place values ending with the suffix -ths refer to the decimal places to the right of the decimal point
(a)
When two positive numbers or two negative numbers are multiplied, the answer is _______
positive (+)
negative (-)
When a positive number and a negative number are multiplied, the answer is _______
positive (+)
negative (-)
When two positive numbers or two negative numbers are divided, the answer is ________
positive (+)
negative (-)
When a positive number and a negative number are divided, the answer is ________
positive (+)
negative (-)
When positive numbers are added, the sign of the answer is ______
positive (+)
negative (-)
When negative numbers are added, the sign of the answer is ______
positive (+)
negative (-)
The solution to this equation is :
(-3) + (-4) = ?
(a)
The solution to these equations are : (same answer, type once)
2 x (-3) = ?
(-2) x 3 = ?
(a)
The solution to this equation is :
12 + (-15) = ?
(a)
The solution to these equations are : (same answer, type once)
(-6)/3 = ?
6/(-3) = ?
(a)
If a bullet found at a crime scene contains 13.9 g of lead, 0.3 g of tin, and 0.9 g of antimony, what is the percentage of lead in the bullet?
*Express your answers to the ones place*
(a)
If a bullet found at a crime scene contains 13.9 g of lead, 0.3 g of tin, and 0.9 g of antimony, what is the percentage of tin in the bullet?
*Express your answers to the ones place*
(a)
If a bullet found at a crime scene contains 13.9 g of lead, 0.3 g of tin, and 0.9 g of antimony, what is the percentage of antimony in the bullet?
*Express your answers to the ones place*
(a)
Solve the following equation for V2:
P1V1 = P2V2
V2 = P2 / P1V1
V2 = P1V1 / P2
what is measured on the vertical axis?
time after tylenol was given
body temperature
what is measured on the horizontal axis?
time after tylenol was given
body temperature
What is the range of values on the vertical axis?
37.0 degrees celsius to 39.4 degrees celsius
0 min to 30 min
What is the range of values on the horizontal axis?
37.0 degrees celsius to 39.4 degrees celsius
0 min to 30 min
What was the child's temperature 15 min after tylenol was given?
37.8 degrees
37.6 degrees
How many minutes elapsed before the temperature decreased to 38.0 degrees celsius?
5 min
8 min
10 min
Does the temperature increase or decrease with an increase in time?
increase
decrease
What is the place value for the 8 digit?
7.328
(a)
What is the place value for the 6 digit?
16.1234
(a)
What is the place value for the 6 digit?
4675.99
(a)
What is the place value for the 5 digit?
97.5689
(a)
What is the place value for the 7 digit?
375.88
(a)
What is the place value for the 0 digit?
46.10
(a)
15 - (-8) = ?
23
-23
-8 + (-22) = ?
30
-30
4 x (-2) + 6 = ?
2
-2
-11 - (-9) = ?
2
-2
34 + (-55) = ?
21
-21
-56 / 8 = ?
7
-7
A clinic had 25 patients on Friday morning. If 21 patients were given flu shots, what percentage of the patients received flu shots?
Express your answer to the ones place
(a)
An alloy contains 56 g of pure silver and 22 g of pure copper. What is the percentage of silver in the alloy?
Express your answer to the ones place
(a)
A collection of coins contains 11 nickels, 5 quarters, and 7 dimes. What is the percentage of dimes in the collection?
Express your answer to the ones place
(a)
Solve the following for a:
4a + 4 = 40
(a)
(a/6) = 7
(a)
What is the scientific notation of the standard number :
10,000
1 x 10^4
1 x 10^3
1 x 10^2
1 x 10^1
What is the scientific notation of the standard number :
100
1 x 10^4
1 x 10^3
1 x 10^2
1 x 10^1
What is the scientific notation of the standard number :
10
1 x 10^4
1 x 10^3
1 x 10^2
1 x 10^1
What is the scientific notation of the standard number :
1000
1 x 10^4
1 x 10^3
1 x 10^2
1 x 10^1
What is the scientific notation for the standard number :
0.1
1 x 10^-1
1 x 10^-2
1 x 10^-3
1x10^-4
What is the scientific notation for the standard number :
0.001
1 x 10^-1
1 x 10^-2
1 x 10^-3
1x10^-4
What is the scientific notation for the standard number :
0.01
1 x 10^-1
1 x 10^-2
1 x 10^-3
1x10^-4
What is the scientific notation for the standard number :
0.0001
1 x 10^-1
1 x 10^-2
1 x 10^-3
1x10^-4
Write in scientific notation :
425,000
425 x 10^3
42.5 x 10^4
4.25 x 10^5
Write in scientific notation :
0.000 000 86
86 x 10^-6
8.6 x 10^-7
Write in scientific notation:
480
4.8 x 10^-2
4.8 x 10^2
Write in scientific notation:
0.0072
7.2 x 10^3
7.2 x 10^-3
Write in scientific notation:
55,000
5.5 x 10^4
5.5 x 10^-4
Write in scientific notation:
0.000 005
5 x 10^-6
5 x 10^6
