Science and Our Food Supply: Investigating Food Safety from Farm to Table

1

LAB:

 DESIGN THE LAB  

Observe 

1. 

Assign students to work in teams of 3 or 4. 

2. 

Ask each team to record at least 5 observations about the 

juice. (Students may notice color and clarity differences.  

One juice may have some solids in it, etc.) You may wish to 

help them understand the difference between observation  

and inference before they start. 

3. 

Ask each team to share their best observations with the class. 

List them on the board. 

4. 

Ask the students what the different observations may mean. 

Develop a Hypothesis 

5. 

Based on the class observations, challenge each team to come 

up with a hypothesis of which juice is pasteurized and which 

one is unpasteurized, and have them explain their reasoning.