Paul Andersen begins with a brief description of NASA discoveries related to Mars, Mercury and water. He then explains why water is required for life. He finally uses a simulation to show you why water acts as a wonderful solvent and...

We look at the effects of osmosis on the volume of potato and the appearance of red onion cells. Two cylinders of potato are measured and weighed before one is placed in salt water and the other in fresh water. We can see how osmosis...

We use filtration and evaporation to separate out a mixture of water, sand and salt. The sand is removed using filtration, as it did not dissolve in the water. The remaining solution is heated until the water evaporates, leaving behind...

As always, the steps of putting a gene insert into vector/plasmid AND nickel affinity chromatography depend on your specific lab and protocol. Here, we look at the general theory of engineering a poly-His tagged protein and Ni affinity...

The video discusses an experiment carried out by Harry to investigate how the temperature of crushed ice varies as it melts. Harry placed some crushed ice in a boiling tube and then placed the boiling tube in a beaker of water. The...

Learn the basics about Concentration formula and calculations. How do you calculate the masses of reactants and products from balanced equations? Find out more in this video!

The video is about the various techniques used to separate different components of a mixture. The presenter discusses the differences between mixtures and compounds, and how mixtures are not chemically combined, but rather just mixed. He...

The video explains how to separate mixtures through physical processes without breaking any chemical bonds. The speaker describes various techniques such as filtration, crystallization, chromatography, and distillation, while explaining...