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WorksheetsDesigning a Laboratory Experiment
Total questions: 15
Worksheet time: 12mins
A laboratory experiment has 3 different types of variables. Those variables are:
Dependent Variable
Independent Variable
Controlled Variable
Manipulative Variable
Scientific questions should be written in which format?
How does the Independent Variable affect the Dependent Variable?
How does the Controlled Variable affect the Dependent Variable?
How does the Independent Variable affect the Controlled Variable?
How does the Dependent Variable affect the Independent Variable?
Which is the correct format for a hypothesis?
If _____ then _______ because _______
Because _______ I _______therefore
If Mrs. Reynolds is sleepy then she needs more coffee because coffee is life and magical.
If IV then DV because of scientific reasoning.
Which of these is a material you would find for a filtration lab?
Bunsen burner
Tweezers
Funnel
Microscope
Why is it important for your procedures to be extremely detailed?
So Mrs. Reynolds knows what you're actually doing
So another scientist could replicate your experiment if they wanted to
Because scientists love details
So that every step is accounted for and documented
When in doubt add more ___________?
Detail
Materials
Cowbell
Procedures
How many ways should you manipulate your independent variable?
4
2
5
3
After you've manipulated your variable 5 ways, how many trials of each way should you do?
2
3
4
1
Do you have to leave room for qualitative observations?
Yes
No
When listing your dependent variable, what do you HAVE to include?
The unit in which you are measuring it
Detail
How you're changing the variable
The time it took to change
You are given this question to investigate: How does adding solute to water change the temperature at which the water boils?
What is the dependent variable in this question?
Adding solute to water
Temperature that water boils
Amount of solute in water
Amount of water being boiled
You are given the following question to investigate: How does the temperature of water affect the rate at which salt dissolves?
Please select all of the materials/equipment you will need for this experiment
Thermometer
Bunsen burner
Digital scale
Stirring rod
Identify the independent and dependent variable in the following hypothesis:
If I increase the amount of sugar dissolved in water, then the water will take longer to boil because adding solutes to water increase the boiling point.
Amount of sugar/time to boil
Time to boil/ amount of sugar
Boiling point/time to boil
Time to boil/boiling point
When writing a materials list, you do not need to include quantities of the materials. You only need to state that you're using it.
True
False
When writing your procedure, are you allowed to use "I" in your writing?
Yes
No
