What is happening in the blue bottle experiment?

An alkaline solution of glucose acts as a reducing agent and reduces added methylene blue from a blue to a colourless form. Shaking the solution raises the concentration of oxygen in the mixture and this oxidises the methylene blue back to its blue form.

What are microscale experiments?

Microscale experiments give students the opportunity to develop their observational and investigative skills using simple equipment and smaller quantities of chemicals. This practical guide is designed to accompany our Microscale chemistry resources, supporting you to use microscale experiments in your classroom.

Why does the blue bottle experiment turn yellow?

When the solution is shaken, oxygen dissolves in the solution and oxidizes indigo carmine. Solution becomes red if a small amount of oxygen is dissolved, and green if all of indigo carmine is oxidized. The solution will turn back to original yellow color when the concentration of oxygen level drops.

What experiments do you do in high school chemistry?

Interesting High School Chemistry Demonstrations

  • Sodium in Water Chemistry Demonstration. Getty Images / Andy Crawford and Tim Ridley.
  • Leidenfrost Effect Demonstrations.
  • Sulfur Hexafluoride Demonstrations.
  • Burning Money Demonstration.
  • Oscillating Clock Color Changes.
  • Supercooled Water.
  • Colored Fire Chem Demos.

How do you make golden rain?

Lead Nitrate + Potassium Iodide The golden rain reaction takes advantage of the increased solubility of lead iodide in hot water. Stoichiometric amounts of lead nitrate and potassium iodide are combined, with enough water to dissolve all of the lead iodide precipitate at 80 degrees Celsius.

What are microscale techniques?

Microscale Laboratory Techniques. Traditionally, experiments in organic chemistry are carried out on a macroscale level, employing quantities of chemicals on the order of 5-100 g, using glassware designed to contain between 25 and 500 mL of liquids.

What equipment is used in microscale technique?

Instead, one uses smaller scale volumetric devices such as syringes, automatic pipets, and calibrated disposable Pasteur pipets. Automatic Pipets are commonly used in microscale organic and biochemistry laboratories.

What are some high school science experiments?

Ideas for High School Science Fair Projects

  • Compare the effect of antibiotics on gram-positive and gram-negative bacteria.
  • Run a bioassay to test for toxicity in water or soil.
  • Test the effect of ultraviolet radiation on bacteria growth.
  • Do different types of bread grow different types of mold?

What are the classic experiments in chemistry?

Classic chemistry experiments 1 Chemistry and electricity. 2 Electricity from chemicals 3 Experiments with particles. 4 Producing a foam 5 Rubber band experiment 6 Testing salts for anions and cations 7 The effect of temperature on reaction rate 8 The preparation and properties of oxygen 9 The reactivity of the group 2 metals

What is the Royal Society of Science?

The Royal Society was founded in 1660 to bring together leading scientific minds of the day, and became an international network for practical and philosophical investigation of the physical world. Today, it’s the world’s oldest national scientific academy.

What do we publish for researchers in Chemical Sciences?

We also publish a range of literature alerting services for researchers in the chemical sciences to keep up-to-date with recently published papers. Researchers can browse the most important organic or catalytic reactions from the last month; view newly discovered natural products or search for specific analytical techniques and analytes.

Who was the last curator of experiments at a Royal Society meeting?

The well-known lecturer and instrument maker John Theophilus Desaguliers was the last to assume the role of Curator of Experiments in 1717. After this, there was less need for the role of Curator as Society meetings moved focus from experiments towards scientific discussions. Who attended Royal Society meetings?