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WorksheetsDills Ms Science
Total questions: 26
Worksheet time: 25mins
What is an independent variable?
Variable that is changed to test
Variable that you measure
Variable that stays the same
What is a dependent variable?
Variable you change on purpose
Variable you measure for results
Variable that stays the same
What are controlled variables?
Variable that you measure for results
Variables that stay the same to ensure validity
Variable that you change to test
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.
Diameter of the ball
Height that the ball bounces
Height that the ball bounces (cm)
Height from which the ball is dropped
To improve the validity of an experiment a scientist should:
Repeat the experiment and compare results to other data and secondary sources
Use digital equipment and small units of measurement for precision
Control all variables aside from the independent and have an experimental control
All experiments are valid if reliable
To improve the reliability if an experiment as scientist should:
Repeat the experiment and compare results
Use digital equipment and small units of measurement
Control all variables aside from the independent
Increase the validity
To improve the accuracy if an experiment as scientist should:
Repeat the experiment and compare results
Use digital equipment and small units of measurement
Control all variables aside from the independent
Increase the reliability
What is wrong with this table?
The average should not be included in a table
They have not written 'independent and dependent varaible'
The units should only be in the heading
The is no way of knowing what was actually tested
What is an effective precaution to cater for the risk of a test tube breaking causing glass to cut skin?
Be careful
Wear safety glasses
Notify teacher when using glass
Keep test tubes in the centre of the table an insight where possible
Burns to skin from an acid would be assessed as:
Low
Moderate
High
Extreme
On a graph, the dependent variable should be placed on which axis?
Horizontal
Vertical
The title of a graph should include:
The controlled and dependent variable
The dependent and independent variable
The headings of the table
Whatever you can think of quickely
An experimental conclusion should include:
The hypothesis, risk assessment, and results
The hypothesis, relationship between the IND & DEP V, and results
The results
The patterns and trends of the data with reference to the hypothesis and results
To improve the accuracy if an experiment as scientist should:
Repeat the experiment and compare results
Calibrate measuring devices against a known value
Control all variables aside from the independent
Increase the reliability
Why should a line graph be used?
To compare categorical data
To see a relationship between two variables
To finish an experiment
Only if the data is over time
Why should a bar/Column graph be used?
To compare categorical data
To see a relationship between two variables
To finish an experiment
Only if the data is over time
What is a trend in data?
A consistent repetition of data
A relationship between variables (as one increases/decreases what happens to the other?)
A prediction of what could happen outside the data set
What is a pattern in data?
A consistent repetition of data
A relationship between variables (as one increases/decreases what happens to the other?)
A prediction of what could happen outside the data set
