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Microbial fuel cell
Microorganisms can supply electrons by decomposing organic materials and in this way generate a potential difference. For example, a biofuel cell can function as a battery.
The document contains instructions for use that describe how to make a …
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Educational videos: Overview document
This document contains several educational videos divided by subject:
- chemistry,
- biology,
- entrance exams,
and by theme. Almost all of the chemistry and biology curriculum for the third grade finality is covered in a Dutch video.
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The equilibrium constant Kc is not dimensionless
The equilibrium constant Kc is a fundamental quantity in solving chemical equilibrium problems.
Many secondary school chemistry textbooks use a dimensionless concentration fraction, which they usually represent with the symbol K. Both the …Translated by
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Fermentation of bread: STEM project
In this STEM project, students take on the challenge of baking the tastiest sandwich and packaging it. First, the students receive an introduction that also includes the
history of bread is discussed. Then students learn about the
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Cosmography: Stars
This digital exercise will help you learn more about stars. While completing the multiple choice questions and fill-in exercises you will learn more about:
- characteristics;
- spectral class;
- star formation;
- end of light stars;
- end of stars like the …
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Heat battery: STEM project
Can you reduce your energy bill at home by creating a setup that can recover the heat from spaghetti cooking water?
In this STEM project, students are challenged to design and realize a system that ensures that the large amount of heat invested in …
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Safety and danger: Pinch card
Pinch card with icons around safety, first aid, AED, fire brigade and police.
In this way, students learn to get to know the pictograms in a playful way.
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Voice strings: Design your own musical instrument with Arduino and lasers!
This project challenges students to build their own musical instrument without real strings. Inspired by some examples with lasers, they get creative in designing a laser harp. Various concepts of computational thinking are discussed. The laser …
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Types of paint
In this learning resource you will see how paint is used as protection, as decoration, as signaling, in painting, and you will be introduced to the important types of paint.
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Rubber
This exercise will include:
- production,
- applications,
- additives,
- rubber allergy,
- natural rubber
- synthetic rubber,
- risk explanation.
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Natural coloring agents
A natural dye is a dye derived from plants, mushrooms or animals. They can be used for dyeing wool, textiles, hair and food. In this exercise you will become acquainted with different species and their origins. You will also see the link with E …
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Plastics: Examples
In this exercise you match the correct term with the correct description. Terms that are discussed include:
- nylon,
- polyethylene,
- synthetic resin,
- composite,
- carbon fiber,
- elastomer,
- ...
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