Gummy Bear Osmosis

 Kia Ora,

Aim:

I want to find out what happens to Gummy Bears when we put them into different solutions.

Prediction:

I predict that they will dissolve into the solutions.

Method:

Equipment

• 4x Gummy Bears of the same colour 
• 2x petri dishes
• Paper towls
• Maker pen
• Water
• Sugar water
• Salt water
• Electronic balance
• Beaker
• Measuring Cylinder

Instructions:

1. Get your equipment.

2. Put on your safety glasses.

3. Using the marker pen, write the name of the condition on the petri dish. DRY, WATER, SALTWATER, SUGERWATER.

4. Weigh the Gummy Bear and write on the petri dish.

5. Measure 40mL of the solution and pour it into the petri dish

Results:

	Dry	Water	Salt water	Sugar Water
Initial weight of Gummy Bear	5.81g	5.36g	5.73g	5.45g
Final weight of Gummy Bear	5.70g	6.52g	6.22g	6.05g
Weight difference	Lost 0.11g	Gain 1.16g	Gain 0.49g	Gain 0.60g
Initial Volume		40mL	40mL	40mL
Final Volume		0mL	10mL	7mL
Volume Difference		Lost 40mL	Lost 30mL	Lost 33mL

Discussion:

1. Water got sucked up the most out of all the gummy bears. 

2. The dry gummy bear lost 0-11 grams over a week

3. The sugar water diffused faster than the salt water

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move in and out of cells.