Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Indicators are substances that change colour when they are added to acidic or alkaline solutions. Universal indicator is the indicator most commonly used in the laboratory. If universal indicator is ...

Stimuli-responsive gels have been actively studied and applied to a variety of devices such as drug carriers, artificial muscles and actuators. In this research study, calcium alginate gels containing ...