Experiment time!

You are going to do an experiment at home using the Scientific Method. Remember:

1. Make an observation.   Apple slices turn brown when exposed to air.

2. Question: What is the best way to keep apple slices from turning brown?

3. Hypothesis: I think the best way to keep apple slices from turning brown is to cover them with ......

4. Experiment: Cut six apple slices and cover each one with something different. 
    --Slice one: control. Nothing
    --Slice two: water mixed with 1 spoonful salt
    --Slice three: water mixed with 1 spoonful lemon juice
    --Slice four: plain water
    --Slice five: water mixed with 1 spoonful honey
    --Slice six: your choice! vinegar, milk, baking soda (bicarbonato) etc.

   Leave the apple slices out for 1 hour.   

5. Results. After 1 hour, take photos of the apple slices or draw them.  

6. Conclusion. The best way to keep apple slices from turning brown is:

 
Image credit: Left Brain Craft Brain


If you want, you can invent your own experiment.  Just be sure to use the steps of the Scientific Method!

You need to complete the Experiment Report that I gave you in class and also hand in a second paper with photos or drawings of your results, before and after the experiment.