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The kinetics behind the diet coke with mentos experiment
The experiment between diet cola and mentos produces a fascinating fountain, but it also offers an ideal platform for students to explore different facets of chemical kinetics in a fun and motivating way.
This article discusses the experiment …
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Simple synthesis and characterization of CdSe quantum dots
Synthesizing and characterizing quantum dots are colorful experiments
students in the professional bachelor of chemistry. By running
such experiments give students more insight into typical characteristics
quantum chemical phenomena. Quantum dots are …Translated by
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Qualitative determination of sulphites in wine
Almost every label on a bottle of wine states that the wine contains 'sulfites'. Sulphites are therefore a frequently used additive during the vinification process because many winegrowers are convinced that they are indispensable to …
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The critical micelle concentration of sodium dodecyl sulfate
The determinations of the critical micelle concentrations (cmc) for ionic surfactants using specific conductivity measurements are excellent research projects for students and pupils to gain insight into some properties of substances in solution. …
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Giving an extra dimension to classic equilibrium tests
Chemical equilibrium is a difficult topic theoretically. By studying the complexation reactions in an aqueous solution of a copper salt with hydrogen chloride and with ammonia, it can be made clear that there is a single reaction system.
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Experiment with copper nanoparticles to show color changes
In this contribution, we discuss a student project where copper nanoparticles were prepared by reducing copper (II) sulfate using sodium borohydride. The use of iodide ions provides the necessary stabilization of the nanoparticles formed. The …
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The discovery of argon and the importance of accurate data analysis
John William Strutt, third baron of Rayleigh (1842-1919), is one of the most impressive figures in the history of the natural sciences. He is best known for his explanation of the blue color in the sky caused by Rayleigh scattering. It is less …
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Synthesis of gold colloids from honey
Gold colloid synthesis is a colorful nanochemical experiment. In this
contribution we discuss a student project where gold colloids are prepared from
a gold (III) salt using honey. The experiment is simple in execution.Translated by
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Determine the critical micelle concentration
Surfactants tend to form micelles in solution. The critical
micelle concentration is an important parameter for describing stability
of micelles. In this article we describe a relatively simple experiment through which
conductivity measurements the …Translated by
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Working with patterns in kindergarten: Kindergarten
Is working with patterns one of your favorite assignments in kindergarten? A team of American researchers recently demonstrated that children in kindergarten who have more insight into patterns at the end of primary school are also better at …
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Mathivate: Inspiration guide motivated mathematical sport activities
This sporty inspiration guide - Marieke De Batselier's bachelor's thesis - will stimulate social and motor skills, promote language development (English vocabulary) and refine math skills. The exercises are explained in the …
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Development of mathematical competencies in preschool children
Presentation of a session on the School-heart research study day of 14 February 2019.
Theme: Preschool Children / Preschool Development / Preschool Math Development
We propose two research projects: a project on the spontaneous attention to …
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