Lab day 1: Gummy bear osmosis
Today we did an experiment to prove osmosis using gummy bears. Osmosis is the random movement of water particles from a low concentration to a high concentration.
Firstly, we did an experiment by leaving a white gummy bear inside water, a red gummy bear in salt and an orange gummy bear in honey. Then we made our own hypothesis about what would happen to the gummy bears by basing our hypothesis in osmosis.
Later, we had a look at what had happened to them. The red bear (the one in the salt) had gotten smaller. This is because the salt was hypertonic (had a larger concentration of water molecules than the gummy bear) so the water molecules in the gummy bear moved to the salt, making the gummy bear shrink.
Finally, the white one (in the water) was bigger. This happened because the bear was hypertonic (had a higher concentration of water molecules) so the water move inside the bear making it bigger.
This experiment has helped us understand osmosis better and know when it is applied in our daily lives.
The ones in the left are the ones we used in our experiment and the one in the right is an original gummy bear in normal size.
Firstly, we did an experiment by leaving a white gummy bear inside water, a red gummy bear in salt and an orange gummy bear in honey. Then we made our own hypothesis about what would happen to the gummy bears by basing our hypothesis in osmosis.
The yellow one, inside the honey, didn't change its size because they were isotonic. This means that they had the same concentration of water molecules so they didn't move.
Finally, the white one (in the water) was bigger. This happened because the bear was hypertonic (had a higher concentration of water molecules) so the water move inside the bear making it bigger.
This experiment has helped us understand osmosis better and know when it is applied in our daily lives.
The ones in the left are the ones we used in our experiment and the one in the right is an original gummy bear in normal size.
