Pages

Grow a Gummy Bear


This is a neat and easy science project for younger children. All you need is a package of gummy bears, some small see-through containers, water, and a marker.

The time frame for this project can vary depending on how much time your child is given for the project. The project can be done in as little as a week (7 days) or it can be stretched out over a couple of months.

Here are the basics:

Take the small containers and the marker. Label the containers for the number of days your child is going to do the project. (Day 1, Day 2, Day 3, etc.) I recommend empty baby food jars with lids since the day can be written on the lid. Fill the containers about half full of water – cold or room temperature, not hot.

For each day of the project, drop a single gummy bear into one jar and close the lid. I sorted my gummies by color, but this is optional.) Store containers in a cool space so that the water in the container does not get too warm and melt the gummy bear. (I stored them in the refrigerator, but they can be stored anywhere safe from heat and breakage.) You don’t have to worry about changing the water since the jar has the lid on.

Each day that the gummies are in water, they will grow a small amount by absorbing the water. By labeling the containers, your child can show the progress of the growth.

It is recommend doing the project on a day-to-day basis for one to two weeks. If your child wants to show the size of a gummy after one or two months in the water, I suggest doing only one gummy bear and labeling the jar with the date rather than trying to have a month’s worth of little containers to keep up with.

The picture shows the size of a gummy bear after a month in the water (compared to a regular gummy bear).


How it works:

The traditional gummy bear is made from a mixture of gelatin, sugar, citric acid, glucose syrup,starch, food coloring,and fruit flavoring. According to the HARIBO site, the bears are dried for 3 to 5 days after being poured into the bear-shaped molds. By placing the gummy bear in water, you are basically re-hydrating the gelatin, which allows the bear to grow.

The growth rate and final size of the gummy bears can differ depending on the gummy bears you use. (Name brand vs cheap brand.) The gummy bear does not continue to grow after around 2 weeks. The picture below shows the bears after soaking in water for about 2 months.