Lesson 1
Is a measure of how much mass is contained in a given volume?
Density
A low percent error indicates that the result you obtained is?
Scientist control changes in the ________ variable.
manipulated
All systems have input, _________, and output.
process
You should keep your lab work area clean and ___.
organized
An object will float if it is ______ dense than the surrounding luquid.
The middle number in a set of data is the?
Median
A graph is a(n) _________ of data.
picture
_______ is the material or energy that goes into a system.
Input
Doing good ____ ahead of time helps you stay safe during science investigations.
preparation
_____ is not an official SI Unit of Measurement.
degree Celsius
Term refers to how close a group of measurements are to each other is?
Precision
Graphs that data points yield a straight line is a?
linear graph
Output that changes a system in some way is called _______.
feedback
When an accident occurs, the first person you should tell is your _____.
teacher
______ is a common unit of density?
g/mL
If you add up the values in a data set and then divide the sum by the total number of values, the result will be the ______.
mean
When a graph does not have any clear trends, it probably means that the variables in the graph are?
not related
A(n) _____ is a group of parts that work together to perform a function or produce a result.
system
Wear safety ______ to protect your eyes from chemical splashes.
goggles
The metric system is based on what number?
10
The significant figures in a measurement include all digits measured exactly, plus one ________ digit.
estimated
A point that does not fall exactly on a graph line is a(n) ________ data point.
anomalous
A(n) ____ model might include a drawing or a three-dimensional object.
physical
_____ are pictures that alert you to possible sources of accidents in an investigation.