4.4: Gummy Bears- Tonicity (Activity) - Biology

4.4: Gummy Bears- Tonicity (Activity) - Biology

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We’re all familiar with gelatin (like the Jello brand). When gelatin is dissolved in a liquid and cooled, the gelatin fibers tangle together in a mesh-like network. The space in between the gelatin molecules is filled with the fluid it was dissolved in. Gummy candies are considerably more firm than the gelatin molds we have as desserts because they contain a lot less fluid. Nonetheless, gummy candies are filled with a sugary solution with coloring. Like a cell, a gummy candy placed in solution will be affected by the properties of osmosis when submerged in different solutions.

Stop and Think

  • Is distilled water hypertonic, hypotonic, or isotonic compared to the sugar solution inside a gummy candy?
  • Based on your answer, hypothesize if a gummy candy submerged in distilled water or 40% salt solution will swell faster? Label the diagram below with your hypothesis.


  1. Obtain 2 gummy bears and place them in 2 different small flasks.
  2. Drown 1 bear in distilled water and drown the other in 40% salt solution.
  3. At the end of the lab session, remove the bears from the solution and document the size difference with your mobile phone.

Hypothesized swelling of the bear based on tonicity


Inside Bear Relative to the Solution

Outside relative to the Bear

about swelling



How does the gummy bear experiment work?

Bear Lab. Purpose: To investigate the movement of water into and out of a polymer. Gummy Bears are made of gelatin and sugar. Gelatin is a polymer that forms large three-dimensional matrices which give structural support to jellies and jams, and lots of other things that you use every day.

Similarly, how does Osmosis work in gummy bears? When you put a gummy bear in water, it is a solute, and the water molecules are a solvent. Since the gummy bear does not contain water (remember, the water was removed when the gummy bear was made), water now moves into the bear by the process of osmosis.

Herein, what happens when you put a gummy bear in water?

If a gummy bear is placed in water, then the gummy bear will swell. If a gummy bear is then placed in a higher salt water concentration, then the gummy bear will decrease in volume and mass. . When placed in water, a hypotonic solution, the gummy bear will expand in size and volume due to the water entering it.

What happens when you put a gummy bear in vinegar?

In vinegar, the gummy bear got bigger, but it also started to fall apart, and that's because of the acid in vinegar which can dissolve gelatine.

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Gummy Bear Science Experiment Worksheet

Gummy bear science experiment. Cute and easy experiment.

Gummy Bear Experiment By Rebecca Nelson Teachers Pay Teachers

More information find this pin and more on for the girlies by sadie barbero.

Gummy bear science experiment worksheet. We decided to do some simple science with gummy bears. In this experiment we will find out what will happen when we put the gummy bears into water salt water vinegar and baking soda water. 1 utilize your scientific measuring skills and experimental design knowledge to design an experiment that tests the effect of water on gummy bear size.

Fill out the scientific method chart. Do your kids love them as much as mine do. This lab worksheet was created based on a gummy bear lab i found on the internet.

Gummy bear science worksheets this worksheet is simply there for you to display your before and. Some of the worksheets displayed are gummy bear lab gummy bear osmosis lab observing osmosis genetics gummyworms activity guide 01 20 as gummy bear osmosis dna5 make a model dna strand fish fossils and fuel. However the website with the original lab is no longer available.

Id keep the color of the gummy bear the same in each cup though to ensure only one variable even though the multi. Since ill take just about any excuse to indulge in this candy i pulled together a tasty gummy bear science activity inspired by this weeks early childhood education team theme of teddy bears. Record your name size large or small and color of your gummy bear in the first.

Test your hypothesis by completing the following experiment. I did find another gummy bear lab that explores diffusion with gummy bears and describes the lab in terms of polymers. It was great fun and super easy to organize.

Gummy bear lab student activity worksheet. Some of the worksheets displayed are gummy bear lab gummy bear osmosis lab gummy bear genetics genetics observing osmosis gummy bear osmosis fish fossils and fuel gummyworms activity guide 01 20 as. Gummy bear science experiment observe and record what happens to the bears science experiment determining how the mass of gummy bears change with water salt water vinegar and baking soda.

Gummy bear experiment gummy bears do some interesting things when put into different liquids. Showing top 8 worksheets in the category gummy bear experiment. Plan your lesson in scientific method science skills and measuring meters science skills with helpful tips from teachers like you.

Choose 4 gummy bears from the container. I use the lab during my metric mania unit when we are studying volume and mass. Showing top 8 worksheets in the category gummy bear science experiment.

Sweet and simple science. I have to say your scientific method worksheet is super cute too. Jeannine october 21 2014 at 255 am.

Gummy bears one per person ruler triple beam balance calculator graduated cylinder. Gummy bears are a super fun yummy treat.

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