1. Carbohydrates
4th Grade Science Lab

2. A Balanced Diet 1800 Calorie Diet
50-60% of Calories should be from Carbs
6 ounces
1 ½ cups
3 cups
2 ½ cups
5 ounces

3. Reading the Nutrition Labels

4. We need energy… Carbohydrates supply our body with most of its energy.
Carbohydrates are made up of sugars and starches.
Starches take longer to digest than sugars.
Sugar gives quick energy.
Starches give longer lasting energy.

5. What are Carbohydrates?
Carbs
most importance source of energy for your body
digestive system changes carbs into glucose
Sugars
found in fruits, vegetables, and milk
added during food processing
Starches
found in whole grain bread, cereal, starchy vegetables, and legumes
good source of fiber

6. Testing for Starch Droppers of Iodine Food Samples
Potato
White Bread
Boiled Egg White
Butter
Cracker
Sugar
Apple
Banana
Cheese
Watch for Color Changes
Bluish-Black
Brown
No Results (Rusty Red)
Record Data in Chart

7. Starch Test Results Bluish-Black Brown No Results Potato White Bread
Egg White
Butter
Cracker
Apple
Banana
Cheese

8. Testing for Sugar Glucose Testing Strips Food Samples
Banana
Apple
Honey
Milk
Sugar
Watch for Color Change on Test Strip
Record Data in Chart

9. Sugar Test Results Banana Apple Honey Sugar Milk Test Strip Color
Which foods contain glucose or simple sugar?
How did you determine that these foods contained glucose?
Were some of the green colors darker than others?
What do you think the darker colors mean?
Did all of the foods test positive for glucose?
Which foods did not contain glucose?