Starter
Decide on the ph scale where the
following things go
Investigating neutralisation
Learning aim:
Investigate the best way
to neutralise excess
stomach acid.
I can:
Say how to neutralise acid
Carry out a practical to test
neutralisation and collect results
Write a conclusion based on my
findings
What’s in our stomach?
Why do we have it?
What happens when we get too much of it?
What could we do to solve the problem?
We are going to test if indigestion tablets are the best for getting
rid of excess acid rather than bicarbonate of soda.
How could we do this?
What equipment could we use?
What kind of reaction is this?
You have 2 minutes to come up with a practical idea
Here’s mine
1, Take 1 antacid tablet and grind it up
2, Measure 10 ml of HCl and add a drop of methyl
orange
3, Drop the tablet in the acid and time how long it takes
to turn orange
4, Record results
5, Repeat 3 times
6, Repeat for different strengths of acid
You may enter, but you may not come in, I
have space, but no room, I have keys, but
open no lock. What am I?
When it is alive we sing, when it is dead
we clap our hands. What is it?
What flies when it's born, lies when it's
alive, and runs when it's dead?
Cut my skin out. I'm not going to cry, but
you will! What am I?
Time taken (s)
Concentration
of acid (m)
0.5
0.75
1
Try 1
Try 2
Try 3
ave
What were my variables?
Control
Independent
Dependant
How will we display our data?
Drawing graphs
What is the best way to display my data?
What should data should I include?
Remember the rules for writing a graph!
I am taken from a mine, and shut up in a
wooden case, from which I am never
released and yet I am used by almost
everybody. What am I?
What building has the most
stories?
The person who makes it
has no need for it. The
person who purchases it
does not use it. The person
who does use it does not
know they are. What is it?
Your conclusion needs to explain what happened during the practical and use data to
evidence this.
Conclusion
My results show me:
My data to support this is:
The reason this happened was:
Writing conclusions
Aim for a six marker!
Conclusion help – use these questions as a guide, do not answer them directly.
What did your results show?
What did you find out?
How does your data support this?
Was your prediction correct?
Is this what you expected to happen?
Did you have any anomalies?
How did/would you deal with them
Conclusion help – use these questions as a guide, do not answer them directly.
What did your results show?
What did you find out?
How does your data support this?
Was your prediction correct?
Is this what you expected to happen?
Did you have any anomalies?
How did/would you deal with them
Conclusion help – use these questions as a guide, do not answer them directly.
What did your results show?
What did you find out?
How does your data support this?
Was your prediction correct?
Is this what you expected to happen?
Did you have any anomalies?
How did/would you deal with them