Student Resources—746

Extra Try at Home Labs
Extra Try at Home Labs
766 STUDENT RESOURCES
KS Studios
Acid Defense
Real-World Question
How is stomach acid your internal first line
of defense?
Possible Materials
• drinking glasses (2)
• milk
• cola or lemon juice
• masking tape
• marker
• measuring cup
Procedure
1. Pour 100 mL of milk into each glass.
2. Pour 20 mL of cola into the second glass.
Vitamin Search
Real-World Question
How many vitamins and minerals are in the
foods you eat?
Possible Materials
• labels from packaged foods and drinks
• nutrition guidebook or cookbook
Procedure
1. Create a data table to record the
“% Daily Value” of important vitamins
and minerals for a variety of foods.
2. Collect packages from a variety of packaged
foods and check the Nutrition
Facts chart for the “% Daily Value” of all
the vitamins and minerals it contains.
These values are listed at the bottom of
the chart.
3. Using the masking tape and marker,
label the first glass No Acid and the second
glass Acid.
4. Place the glasses in direct sunlight and
observe the mixture each day for several
days.
Conclude and Apply
1. Compare the odor of the mixture in
both glasses after one or two days.
2. Infer how this experiment modeled
one of your internal defenses against
disease.
3. Use cookbooks or
nutrition guidebooks
to research the “%
Daily Value” of vitamins
and minerals
found in several fresh
fruits and vegetables
such as strawberries,
spinach, oranges, and
lentils.
Conclude and Apply
1. Infer why a healthy diet includes fresh
fruits and vegetables.
2. Infer why a healthy diet includes a wide
variety of nutritious foods.
Adult supervision required for all labs.