2. HYPOTHESIS
The experiment is about knowing which of these
three substances, lemon juice, vinegar, and
cola, is the most acidic.
My hypothesis is that the most acidic is the
lemon juice.

3. EXPERIMENT
In order to prove this hypothesis I’m going to
carry out the following experiment with these
materials:
 vinegar, lemon juice and cola
 litmus paper
 small glass jars

4. METHOD
1. I will put the vinegar, lemon juice and cola
into three separate jars.
2. Then I will use the litmus paper to know
which of them is the most acidic.
3. The most acidic substance will be the one
that turns the litmus paper most red.

5. PROCEDURE… 1ST PART

6. PROCEDURE… 2ND PART

7. CONCLUSION
The most red litmus paper is the one that
maches the lemon juice.
Therefore, my hypothesis is right: the lemon
juice is more acidic than vinegar and cola.