Today in Science class during our Mixtures and Solutions Unit, 5KP had the task of discovering ‘How much salt can you dissolve in 50 ml of water.’ The class worked in groups of 2 and 3 and were given materials to work with from the materials station. They put 50 ml of water into a capped bottle and then put a sticky note onto the outside of the bottle to mark where the water level was at the beginning of the experiment, then they began adding salt in 5 ml spoonfuls.After each salt addition they shook the solution and made sure the salt had dissolved. Most of the groups ended up adding 20-35 ml of salt to the water and then noticed that some of the salt was not dissolving. They had reached saturation! But the experiment was asking how much salt can you dissolve, not how much have you added. So groups set about weighing their salt solution with their scales. Check out their results on any of the students linked blog sites. It was a fun experiment.