Just as in the lab, safety is also important when doing activities in the_______.
Question 19
19.
The percent difference between the known value and its measured value is called the_______
Question 20
20.
Each unit in the SI system is _______times larger than the next smallest unit.
Question 21
21.
The amount of matter contained in a given volume for a substance is called
_______
Question 22
22.
Whenever you perform a lab, your chief concern must be _______
Question 23
23.
Explain the difference between precision and accuracy. Which is more important when you
collect and analyze experimental data?
Question 24
24.
Directions:Use the figure to answer the question.
 Â
What output is expected if the system works correctly?
Question 25
25.
Using the table above, If the cookies are not fully baked when you check, which part of the system tells you to put the cookies back in the oven? Explain.
Question 26
26.
Explain how a line graph can help you investigate the relationship between two sets of data.
Question 27
27.
Directions:Use the figure to answer the question. Brown Pelican Nesting Colonies on Cat Island
Cat Island PlotsNumber of Pelican Nests
A 142
B 166
C 142
D 132
E 188
What is the mean of the number of pelican nests per plot on Cat Island?
Question 28
28.
What should you do when you are done with a lab?
Question 29
29.
Question 30
30.
What part is missing in this system? Input, Output and Feedback
What does it most likely mean if a graph shows no identifiable trends?.
There are more than two variables.
The graph has no use or value.
There is no relationship between the variables.
There is a strong relationship between the variables.
If an accident occurs in your classroom, what is the first thing you should do?
Start first aid treatment.
Go to the nearest hospital.
Find the emergency equipment.
Notify your teacher.
For which of the following would the kilometer be the most appropriate unit of measure?
the wing span of a hummingbird
the height of a very tall person
the length of an ant
the distance from Indianapolis to Lafayette
Which of the following would you measure using a balance?
volume
length
mass
temperature
Which of the following would you measure using a graduated cylinder?
volume
length
mass
temperature
You measure the length of a string three times and get values of 34.0 cm,
34.1 cm, and 34.2 cm. The actual length is 39.0 cm. What can you say about your measurements?
They are accurate but not precise.
They are precise but not accurate.
They are both accurate and precise.
They are neither accurate nor precise.
If a shoe box measures 6 cm high, 7 cm wide, and 20 cm long, what is its volume?
420 cm
420 cm 3
840 cm 3
840 cm
Scientists have developed models for the structure of atoms because
looking at atoms directly can be harmful.
atoms are too far away to study.
atoms move too quickly to see.
atoms are too small to study directly.
Scientists use which of the following to examine models of complex systems?
simple models
computer programs
graphs
diagrams
Which two types of data can be displayed by graphs?
population data and numerical data
categorical data and temperature data
categorical data and numerical data
categorical data and climate data
On which of the following graphs do data points yield a straight line?
linear
non linear
bar
A diagram is one way to model a system.
True
False
Weight is a measure of how much mass is contained in a given volume.
True
False
A point that does not fall exactly on a graph line is a(n) anomalous data point.
True
False
Safety symbols alert you to possible dangers and identify safety equipment you should use.
True
False
The SI system is a nonstandard measurement system.
True
False
Line graphs can help you identify mistakes and make predictions.
True
False
Scientists use models to understand things they can observe directly.