1) Do a 3 Day Food Diary. Choose three days, including two weekdays and one weekend day as close together as possible, and write down everything that you eat and drink and the quantity in common household measurements.

2) Base on the method ofscientific investigation, please design an experiment, come up from an observation of nature,followed bya question, and a hypothesis, and propose a brief experiment to test your hypothesis. Please identify the independent, dependent, and controlled variables.

3) Explain how your lifestyle, habits, and eating patterns affect your life expectancy?