Scientific enquiry

1. Apple

2. Why it became
brown??

3. Search and search
 Apple contain high amount of iron.
 Oxidation :when iron reacts with oxygen
in air it turns its colour .
 Also apple contain fibers but it has
nothing to do with the change in colour .
 Apples of different colours do the same
change in colour.

4.  When the apple is exposed to air its color
changes as oxygen in air reacts with the
iron it has and this is called oxidation.

5. What do u think I can do?

6. Cover them with different liquids?

7. Prediction
 Acids can protect the apples from
changing its colour.
 Examples for acids :lemon and vinegar.
 Examples for bases : milk of magnesia
and soda.

8. Different in colors
1 day.

9. Results
 The apples in lemon only are the ones
who did not change in color ,even the
ones in vinegar changes it’s color.
 So ,it has nothing to do with acid and may
be there is another thing in lemon which
protects the apple

10. Right or wrong?
 My prediction in wrong .
 So I have to repeat it until I reach the
right result.

11. Observation & I asked a
question to identify the
problem to solve

12. Research
 Collect all the data and information that
may help to solve the problem.

13. Hypothesis
 Acids can protect the apples from
changing its color.
 Examples for acids :lemon and vinegar.
 Examples for bases : milk of magnesia
and soda.
 (Which is a prediction which can be
tested).

14. Experiment

16. Conclusion
 Rejected hypothesis

17. The end