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Vernier caliper: Read
This learning tool explains step by step how to read a caliper. There are also some exercises to practice reading the ruler and vernier.
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Actua quiz about the news from April 14 to 21, 2024
You solve quiz questions about current events from April 14 to 21, 2024.
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Actual quiz about the news from April 1 to 13, 2024
You solve quiz questions about current events from April 1 to April 13, 2024.
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Astronomy: Extraterrestrial life
This exercise is about:
- extraterrestrial life;
- super habitable planet;
- exoplanet;
- abiogenesis;
- panspermia;
- number of exoplanets discovered.
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Astronomy: Scientists
This exercise on the history of astronomy covers a range of concepts, a range of scientists and astronomers from the past.
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Astronomy: History
This exercise is about the history of astronomy in ancient times, the Middle Ages, modern times and the present.
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Astronomy: Movement of the moon
This exercise is about, among other things
- movement of the moon;
- mare on the moon;
- phases of the moon;
- sidereal month;
- lunar eclipse;
- solar eclipse;
- tides on earth.
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Astronomy: Concepts 3
This exercise covers the following concepts, among others:
- geographical latitude;
- celestial sphere;
- horizon coordinates;
- obliquity;
- zenith;
- glacial;
- ...
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Astronomy: Concepts 2
Concepts covered in this exercise include:
- supernova,
- hypernova,
- basic geometry,
- sunrise,
- sunset,
- twilight,
- culminating of celestial bodies,
- circumpolar stars.
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Mixed circuit of resistors
This exercise can also be used as a test. It consists of two combined circuits, each with two resistors connected in series/parallel. Voltage, current and resistance must be calculated.
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Introduction to English
This Bookwidgets is made around British/English singer(s) and English culture. In this online exercise, Olivia Rodrigo will be discussed in more detail.
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Actua quiz about the news from March 18 to 24, 2024
You solve quiz questions about current events from March 18 to 24, 2024.
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