Teacher's Note and instructions: As we continue, let us investigatel You may ask help from any of your family members that are available to assist and help you as you do this activity. Follow the given instructions below patiently. You will be tasked to take four (4) pictures showing the results of your investigations. GOOD LUCK! Read these questions first before you do the activity. And after you do the activity, you can now supply the answer for these questions.

1 After three days of observation, what happened to the iron nails with a drop of vinegar on it? How about the other sample?

2. Compare the two samples (with vinegar and none) is there a difference after your three days observation?

3. What do you think is the content of vinegar why it changes the iron nail?

4 Based from the result of your activity and observation, what practical application/ s it implies?​