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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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Can you save Fred?
During this collaborative activity, your students will work in pairs to put worm Fred (candy) on a life jacket (candy) and place it back in his boat (plastic jar). They first come up with a plan and evaluate afterwards.
Source: Can you save Fred? by …
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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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Drawing with SketchUp Free and SketchUp for Schools for 3D printing and laser cutting
Introduction to the free online programs SketchUp Free and SketchUp for Schools. Both programs can be used to create designs for 3D printing. In the 'for Schools' version, files for laser cutting can also be created. A school account from …
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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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Webflow: Web Design and Development Platform
Webflow provides software as a service for building and hosting websites. Both students and web designers can learn the basics about website design for free. If you want to understand the code behind the site, you can view it for free. Webflow works …
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