Savvas 7th Grade Chapter 2 Review
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Last updated over 2 years ago
40 questions
1
Weight is a measure of how much mass is contained in a given volume.
Weight is a measure of how much mass is contained in a given volume.
1
On the Kelvin scale, water freezes at 0°C and boils at 100°C.
On the Kelvin scale, water freezes at 0°C and boils at 100°C.
1
An object will float if it is less dense than the surrounding liquid.
An object will float if it is less dense than the surrounding liquid.
1
The balance is the tool used to measure mass.
The balance is the tool used to measure mass.
1
The basic unit for measuring volume is the kilogram.
The basic unit for measuring volume is the kilogram.
1
Scientists control changes in the responding variable.
Scientists control changes in the responding variable.
1
To help you see what the data from an experiment mean, you could use a(n) graph.
To help you see what the data from an experiment mean, you could use a(n) graph.
1
Line graphs display data that show how the responding variable changes in response to the manipulated variable.
Line graphs display data that show how the responding variable changes in response to the manipulated variable.
1
A point that does not fall exactly on a graph line is a(n) anomalous data point.
A point that does not fall exactly on a graph line is a(n) anomalous data point.
1
Some systems have feedback.
Some systems have feedback.
1
Scientists use models to understand things they can observe directly.
Scientists use models to understand things they can observe directly.
1
When they use models, scientists keep in mind that predictions based on models are certain.
When they use models, scientists keep in mind that predictions based on models are certain.
1
What happens in a system is called input.
What happens in a system is called input.
1
What would you be most likely to measure by immersing an object in water and seeing how much the water level rises?
What would you be most likely to measure by immersing an object in water and seeing how much the water level rises?
1
Which is a common unit of density?
Which is a common unit of density?
1
On what number is the metric system based?
On what number is the metric system based?
1
A low percent error indicates that the result you obtained is:
A low percent error indicates that the result you obtained is:
1
Which term refers to how close a group of measurements are to each other?
Which term refers to how close a group of measurements are to each other?
1
Which of the following is the middle number in a set of data?
Which of the following is the middle number in a set of data?
1
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
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
1
On which of the following graphs do data points yield a straight line?
On which of the following graphs do data points yield a straight line?
1
When a graph does NOT have any clear trends, it probably means that the variables are which of the following?
When a graph does NOT have any clear trends, it probably means that the variables are which of the following?
1
On a nonlinear graph, the data points are never which of the following?
On a nonlinear graph, the data points are never which of the following?
1
Where do you conduct a science investigation in the field?
Where do you conduct a science investigation in the field?
1
When doing a science investigation, what should be your chief concern?
When doing a science investigation, what should be your chief concern?
1
Scientists often rely on a(n)_______ when they cannot obtain an exact
number.
1
When you multiply measurements, the answer should only have the
same number of significant figures as the measurement with the _______ significant
figures.
1
A reliable measurement is both _______ and precise.
1
Calculating percent error and checking the reasonableness of data are two of the
math tools scientists use to analyze_______ .
1
_______ data are data that do not fit with the rest of a data set.
1
The significant figures in a measurement include all digits measured exactly, plus one
_______ digit.
1
All systems have input, _______ , and output.
1
_______ is the material or energy that goes into a system.
1
A(n)_______ is a group of parts that work together to perform a function or produce a result
1
Output that changes a system in some way is called_______ .
1
You should keep your lab work area clean and _______
1
Doing good _______ ahead of time helps you stay safe during science investigations.
1
When an accident occurs, the first person you should tell is your _______.
1
Be sure to wash your _______ thoroughly after working in the laboratory.
1
Wear safety_______ to protect your eyes from chemical splashes.