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1000 Science Fair Projects with Complete Instructions

Nutrition is the study of food and how it affects our bodies. By learning about nutrition, we can make healthy choices about what we eat and drink, and live a healthier and happier life.

Eureka Crateengineering & invention kits for ages 12+ — monthly projects that build real-world skills. (Affiliate link)

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Eggshell Staining and Drink Acidity
Nutrition Science Fair Project
Easy
Soak hard-boiled eggs in different drinks for two days and see which ones stain and soften the shells the most.
Regular vs. Low-Fat Taste Detection
Nutrition Science Fair Project
Easy
Serve regular and low-fat versions of six snacks side by side and find out if volunteers can spot the difference.
Health Habits of Seventh Graders
Nutrition Science Fair Project
Medium
Survey 100 seventh graders about their daily health habits. Compare their answers to what their bodies actually need.
Dieting Methods and Reaction Time
Nutrition Science Fair Project
Medium
Test whether restrictive diets like fasting and diet pills slow reaction time compared to a regular eating pattern.
Orange Ripeness and Vitamin C Content
Nutrition Science Fair Project
Medium
Squeeze juice from unripe, half-ripe, and ripe oranges, then count iodine drops to find which stage holds the most vitamin C.
Sugar Concentration and Weight Gain in Mice
Nutrition Science Fair Project
Medium
Feed one group of mice apples and another jelly beans for two weeks to see which causes more weight gain.
Breakfast and Memory Recall
Nutrition Science Fair Project
Medium
Give breakfast-skippers three weeks of morning meals and watch their object recall jump in a simple before-and-after memory test.
Fresh Food Access in Urban Areas
Nutrition Science Fair Project
Medium
Survey stores and residents in two different neighborhoods and discover whether fresh food access shapes what people actually eat.
Creatine, Vitamins, and Mouse Weight Gain
Nutrition Science Fair Project
Hard
Feed three groups of mice different supplements for a month and compare which group gains the most weight.
Breakfast Type and Mental Performance
Nutrition Science Fair Project
Hard
Track test scores across five breakfast types over two weeks and discover which fuel helps the brain perform best.
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