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Savvas Chapter 2 -7th Grade Using Mathematics in Science -Modified
By Jennifer Potter
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Last updated over 2 years ago
35 questions
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Question 1
1.
On what number is the metric system based?
1
10
100
Question 2
2.
Which is a common unit of density?
g
g/ml
g/s
Question 3
3.
Which of the following is the middle number in a set of data?
mean
median
mode
Question 4
4.
A low percent error indicates that the result you obtained is
accurate
inaccurate
anomalous data
Question 5
5.
Which term refers to how close a group of measurements are to each other?
estimate
accuracy
precision
Question 6
6.
On which of the following graphs do data points yield a straight line?
Non-Linear
Linear
Bar
Question 7
7.
On a nonlinear graph, the data points are never which of the following?
point
Along a curved line
Along a straight line
Exactly on a graph line
Question 8
8.
A line graph is used when which of the following is true?
An independent variable is continuous
No variable is continuous
An independent variable is not continuous
Question 9
9.
When doing a science investigation, what should be your chief concern?
your own safety
your classmates’ safety
both your safety as well as your classmates
Question 10
10.
Weight is a measure of how much mass is contained in a given volume.
True
False
Question 11
11.
The basic unit for measuring volume is the kilogram.
True
False
Question 12
12.
On the Kelvin scale, water freezes at 0°C and boils at 100°C.
True
False
Question 13
13.
An object’s temperature is the amount of space it takes up
True
False
Question 14
14.
Scientists control changes in the responding variable.
True
False
Question 15
15.
To help you see what the data from an experiment mean, you could use a(n) graph.
True
False
Question 16
16.
A point that does not fall exactly on a graph line is a(n) anomalous data point.
True
False
Question 17
17.
Line graphs display data that show how the dependent variable changes in response to the independent variable
True
False
Question 18
18.
Doing good preparation ahead of time helps you stay safe during science investigations.
True
False
Question 19
19.
Scientists often rely on a(n) _______ when they cannot obtain an exact number.
Question 20
20.
7. A reliable measurement is both _______ and precise.
Question 21
21.
10. The significant figures in a measurement include all digits measured exactly, plus one__________ digit.
Question 22
22.
_______data are data that do not fit with the rest of a data set.
Question 23
23.
Which of the following shows the mean with the correct number of significant figures for the numbers 15.6, 14.1, 7.7, 12.9, 12.9?
12
12.6
12.64
Question 24
24.
All systems have input, ___________________, and output.
process
model
system
Question 25
25.
A(n) ___________________ model might include a drawing or a three-dimensional object.
Mathematical equation
Physical
Process
Question 26
26.
___________________ is the material or energy that goes into a system.
Input
Process
Output
Question 27
27.
Output that changes a system in some way is called __________________.
input
Feedback
Systems
Question 28
28.
A Field is defined as :
a beach
a park
anywhere outside a science laboratory
Question 29
29.
Which of the following are you least likely to see represented by a safety symbol in the procedures of an investigation?
flames
lab apron
time
Question 30
30.
When an accident occurs, the first person you should tell is any adult not your teacher.
True
False
Question 31
31.
Safety symbols are pictures that alert you to possible sources of accidents in an investigation.
True
False
Question 32
32.
Doing good preparation ahead of time helps you stay safe during science investigations.
True
False
Question 33
33.
Scientists use models to understand things they can observe directly.
True
False
Question 34
34.
Use the graph to predict the boiling time of water that has a volume greater than 2,000 milliliters.
Question 35
35.
Name the 3 parts of any system. For an extra point, name the 4 part that sometimes occurs