Search for Science Fair Projects

1000 Science Fair Projects with Complete Instructions

Nutrition Science Fair Project

Sugar and Weight Gain

Sugar and Weight Gain | Science Fair Projects | STEM Projects
Do you want to know if eating too much sugar can make you gain weight? This experiment will explore the effects of sugar on weight gain by feeding baby mice apples and jelly beans.


The hypothesis is that baby mice fed with jelly beans will gain weight more quickly than those fed with apples.

Method & Materials

You will separate 10 baby mice into two groups, feed one group apples and the other jelly beans, and measure the weight gain of each group after two weeks.
You will need 10 baby mice, 14 apples, 1 large packet of jelly beans, 2 mice cages, 2 feeding trays, old newspaper, and a digital weighing scale.


The results showed that the mice fed with jelly beans had a slightly higher weight gain compared to the mice fed with apples. This proves that eating too much sugar can lead to weight gain.

Why do this project?

This science project is interesting because it shows how eating too much sugar can lead to weight gain, even in mice.

Also Consider

Variations of this experiment could include comparing the weight gain of male and female mice given the two types of diet, or observing the weight variation of fully grown mice given food with different levels of sugar.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!
Share this Science Project:

Related Science Fair Project Ideas

Taste Test Challenge
Can you tell the difference between sweet, sour, salty, and bitter? Find out in this fun science project!
Staining Teeth with Beverages
Let's find out which beverage leaves the most stains on our teeth!
Does Vitamin C Prevent Colds?
Can vitamin C help you stay healthy and avoid getting a cold? Find out in this fun science project!
Share this Science Project: