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Biomass conversion: Practical
The Biomass Conversion lesson series consists of a practical with accompanying questions and assignments.
In the practical, the students see how wood contains cellulose, and they show that cellulose in turn consists of glucose. Students become …
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Electrolysis in a potato: Practical
Use a potato and copper electrodes to perform electrolysis. Copper oxidizes at the anode, water present in the potato reduces at the cathode. You can detect H2 there and observe with an indicator that a base is being formed.
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Chemical arithmetic: Practical
This document contains the instructions for the students.
I gave each pair a different combination of volume of 1 mol/l sulfuric acid solution and a certain mass of sodium carbonate, some having one in excess and others having the other. The amount …
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Qualitative and quantitative analysis of hydrates: Practical
In this practical, it is quantitatively determined how many water molecules bind per salt molecule of a hydrate (for example that of copper sulphate). It is also qualitatively demonstrated that a hydrate has a different color than its …
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Microscopy and chemical identification: Solve the mystery
During this lab, your students will investigate a crime. Three pieces of evidence were found at the scene of the crime. It's about animal hair, soil type and fibers. After a chemical and microscopic examination, the students can determine which …
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Separation techniques: Corner work
During this corner work, the students experience the different separation techniques. The separation techniques discussed are:
- filter,
- seven,
- centrifugation,
- evaporate,
- extract.
The evaporation laboratory is studied using a video.
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Conductivity: Practical
Four research questions are addressed in this practical.
- How does concentration affect the conductivity of a substance?
- How does temperature affect the conductivity of a substance?
- How does the ionic radius affect the conductivity of a substance? …
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Reaction rate and thermodynamics: Practical
This is a simple practical about the factors that influence the reaction rate in the reaction that takes place between chalk and hydrochloric acid. Students can also determine whether this is an endothermic or exothermic reaction.
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Friendship bread: Home assignment
Update: Herman the friendship bread, prepared as an assignment for home.
Source: Herman the friendship bread: Step-by-step plan by Lien Rönne
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Life on Mars: Dream or Reality?
Life on Mars: Dream or Reality?
Curriculum to get started during biology, chemistry and physics lessons following the film The Martian. For students from the 3 ° year of science.
- biology: consequences of being weightless for a long time on human …
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Water treatment: Chemical aspects
A detailed course on chemical aspects of water purification.
Among other things, the following are discussed:
- determination of total hardness of water,
- determination of chemical oxygen demand,
- qualitative, semi-quantitative determination of ions in …
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Redox reactions: Experiments with potassium permanganate
This student test fits within the theme of redox reactions in an acidic and alkaline environment . Different reactions of potassium permanganate are investigated in a nucleon dish.
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