Eating is about satisfying hunger, it has nothing to do with our body, its organs and cells.

Our dietary choices shape our physical health. Food influences our brain, emotions, and behavior.

When we choose how we nourish ourselves, those choices do not influence the kind of life we lead. 

1. Your stomach uses acid strong enough to dissolve metal.

Hydrochloric acid (HCl) in the stomach has a pH of 1–2, powerful enough to break down food, kill bacteria, and dissolve many metals.

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2. Carrots don’t really improve night vision—except in extreme deficiency.

Carrots contain beta-carotene, which helps the body make Vitamin A, necessary for low-light vision, but eating more carrots won’t turn you into a superhero with night vision.

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3. The human body contains 39 trillion bacteria—many of them live in your gut and “eat” with you.

Your microbiome helps digest fiber, produce vitamins, regulate immunity, and even influence mood.

4. Chocolate contains over 600 flavor compounds—more than red wine.

Chemists have identified hundreds of volatile molecules responsible for chocolate’s aroma and taste.

5. Your brain uses about 20% of all the energy you eat.

Although it makes up only about 2% of body mass, the brain is the body’s most energy-demanding organ.

6. Spicy foods don’t actually “burn” you—your brain only thinks they do.

Capsaicin activates the same receptors in your mouth that detect heat, tricking your brain into feeling “fire.”

7. Blue food is rare in nature because of pigment chemistry.

Most plants cannot produce stable blue pigments, so scientists study them for potential use in safer natural food dyes.

8. One teaspoon of soil can contain more microorganisms than people on Earth—this is why healthy soil = healthy food.

STEM fields like microbiology and agronomy study soil microbes because they influence the nutrients in plants we eat.

9. NASA studies astronauts’ nutrition to prevent muscle and bone loss in space.

Foods rich in calcium, vitamin D, protein, and potassium help counteract the effects of microgravity.

10. The colors in fruits and vegetables signal different nutrients.

Scientists call this “nutrition by color.”

• Red foods: lycopene (heart health)
• Orange/yellow: beta-carotene (vision)
• Green: chlorophyll, folate (cell health)
• Blue/purple: anthocyanins (brain health)

11. Eating beets can temporarily turn your pee pink or red — it’s called “beeturia.”

This happens because some people absorb and excrete natural plant pigments called betalains differently. It’s harmless, but it shows how unique each person’s digestion and metabolism are.

12. Frozen fruits and vegetables can be more nutritious than fresh ones.

Because they are flash-frozen immediately after harvest, their vitamins (especially vitamin C and folate) are often better preserved than in fresh produce that travels long distances.

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STEP 1

1. Choose Your Samples

Pick 3–5 different drinks/foods you want to investigate.
Example: cola, fruit juice, flavored water, iced tea.

2. Record Initial Weights

a. Clean and dry the saucepan.
b. Weigh the empty saucepan on your digital scale and record this weight.
c. Label this weight as “Empty Pan Weight.”

3. Prepare Your Sample

For liquids:
a. Measure the same volume (e.g., 300 ml) of each drink. Use the measuring jug to be consistent.
b. Pour the measured liquid into the saucepan. 

STEP 2

4. Heat and Evaporate

a. With adult supervision only, heat the pan on the stove at medium heat.
b. Boil until all the water evaporates and only the sticky residue remains (this is mostly sugar). You’ll know you’re done when no steam rises from the pan.

5. Cool the Pan

a. Turn off the heat and let the saucepan cool completely (important for accurate weighing). 

6. Weigh Again

a. Once cool, weigh the pan with the dried sugar residue inside.
b. Record this as “Pan with Sugar Weight.” 

7. Calculate Sugar Content

Use this simple equation:
Sugar (grams) = Pan with Sugar Weight – Empty Pan Weight

Record the sugar content for each sample.

STEP 3

Create Your Poster

1. Title Give your project a clear title, e.g.:

“How Much Sugar Is Really in Our Drinks?”

2. Hypothesis

Write what you think will happen before you start: Example: “I think fruit juice will have less sugar than cola.”

3. Data Table

5. Visuals

Include bar graphs or pictures of your results. For example, make sugar cubes or teaspoons drawings to show grams visually.

6. Conclusions - Write what you learned:

• Which drink had the most sugar?
• Were you surprised by the results?
• What would you recommend to friends based on your experiment?