Watch the video of the blue bottle experiment, in which a mixture of glucose, sodium hydroxide and a blue dye in water is shaken and then left to stand. Make a note of your observations so that you ...
Many reactions can be reversed by changing the conditions. Changes of state such as melting and boiling can be reversed by freezing or condensing the substance. Water of crystallisation can be removed ...
This is where a good-quality filtered water bottle can help you stay hydrated with safe water anytime, anywhere. These bottles have built-in filters that get rid of microplastics, bacteria and ...