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LEARNING INTENTION
LEARNING INTENTION
Students will be able to:
identify and describe the independent, dependent and controlled variables of an experiment
place date into a table
Literacy
Literacy
Numeracy
Numeracy
LEARNING
LEARNING
Independent and Dependent Variables
TASK 1
Watch the video
TASK 2
Go write down the definition of independent variable
TASK 3
Go write down the definition of dependent variable
TASK 4
Go write down the definition of controlled variable
Complete the following experiment:
Hypothesis
If the rate (g/mL) of dissolving a sugar cube is related to the temperature (degrees) of the water, then it is expected that the hotter the water the faster a sugar cube will dissolve.
METHOD
Part A
Boil kettle
Place 1 sugar cube into a glass beaker (200 mL)
Add 50 mL of boiling water (measure the actual temperature) to the 200 mL glass beaker
Time how long it takes for the sugar cube to dissolve
Part B
Boil kettle
Place 1 sugar cube into a glass beaker (200 mL)
Add 25 mL of boiling water and 25 mLs of tap water (measure the actual temperature) to the glass beaker
Time how long it takes for the sugar cube to dissolve
RESULTS
write the results in a table.
DISCUSSION
State the independent variable (with units)
State the dependent variable (with units)
State the controlled variables
TASK 5
Go write down the definition of controlled variable
EVIDENCE OF LEARNING
EVIDENCE OF LEARNING
Students should be able to:
define the purpose of variables in an experiment
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