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Worksheets10B Science Chemistry Investigation Quiz
Total questions: 15
Worksheet time: 9mins
What is the name of the compound/solution that we used in our practical?
phosphoric acid
sodium thiosulfate
sodium chloride
sodium thiophosphate
In our investigation, what is the independent variable?
temperature of the sodium thiosulfate solution
temperature of the water
time taken for the 'X' to disappear (reaction rate)
concentration of the sodium thiosulfate solution
In our investigation, what is the dependent variable?
the temperature of the sodium thiosulfate solution
the concentration of the sodium thiosulfate solution
the time taken for the 'X' to disappear (reaction rate)
time taken for the sodium thiosulfate solution to cool down
What is one controlled variable that was taken into consideration in our practical?
the concentration of the sodium thiosulfate solution
the temperature of the sodium thiosulfate solution
the time it took for the 'X' to disappear
the temperature of the classroom
What are some potential safety hazards for this experiment? (more than one answer)
Hydrochloric acid
boiling hot water
sulfur dioxide byproduct
year 10 students throwing ice cubes at each other
What is the name of the piece of equipment that you combined the sodium thiosulfate and distilled water in?
measuring cylinder
test tube
beaker
conical flask
What order did you complete the following steps in?
a) heat up the contents of the conical flask using a bath of warm water
b) add hydrochloric acid to the conical flask
c) use a stopclock to time how long the cross takes to disappear
d) add sodium thiosulfate to the conical flask
d, a, b, c
b, a, d, c
d, b, a, c
b, d, a, c
What should go on the Y-axis of the graph?
reaction time/rate
volume of solution
temperature of solution
concentration of solution
What should go on the X-axis of your graph?
reaction time/rate
volume of solution
temperature of solution
concentration of solution
What 2 things need to be included on your graph?
a legend
units
a table of results
a title
In your graph data, what is an outlier defined as?
A datapoint that exceeds the maximum temperature of 100 degrees
A datapoint that seems to be inaccurate
A datapoint that took too long (longer than 5 or 6 minutes)
A data point that lies outside the optimal window of the graph
From your tests last week, what trend did your results table show?
when the reaction rate is increased, the temperature increases
when the temperature is increased, the reaction rate increases
when the temperature is decreased, the reaction rate decreases
when the temperature is increased, the reaction rate decreases
When is your investigation booklet due?
Thursday the 9th of June
Friday the 10th of June
Monday the 13th of June
Friday the 17th of June
How much of your grade is the investigation booklet worth?
10%
15%
20%
25%
Where can you find the marking key for the booklet?
On the sheet of paper Mrs Woods gave you last week
On OneNote
On SEQTA
At the back of your investigation booklet
