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Learn... Distances in the Universe
EduBook Organización
- 1452 visitas
The Universe is vast. For this reason, special units are needed to measure these tremendous distances. Astronomers basically use two types of units: the astronomical unit and the light year. The…
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Did you know?
EduBook Organización
- 1309 visitas
Just as with the standard kilogram, there is a standard metre at the International Bureau of Weights and Measures, near Paris. However, nowadays this length is not taken as the standard metre measure.…
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Magnet and Compass
V&V Books Vicens Vives Organización
- 1463 visitas
Ever wonder how a compass worked to point you to the Arctic? Explore the interactions between a compass and bar magnet, and then add the earth and find the surprising answer! Vary the magnet's…
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How to Calculate the Concentration of a Solution
V&V Books Vicens Vives Organización
- 1 lo usan
- 1233 visitas
In Chemistry, a solution is a homogeneous mixture of two things - a solute and the solvent that it's dissolved in. Concentration is a measure of how much solute is dissolved within the solvent.…
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Magnet and Compass
V&V Books Vicens Vives Organización
- 1106 visitas
Ever wonder how a compass worked to point you to the Arctic? Explore the interactions between a compass and bar magnet, and then add the earth and find the surprising answer! Vary the magnet's…
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How to Build a Homemade Battery
V&V Books Vicens Vives Organización
- 383 visitas
Create your own homemade battery. This tutorial covers earth batteries, coin batteries and salt batteries using everyday items in your house. Detect current and voltage throughout the circuit as charge…
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Choose. The ozone layer
EduBook Organización
- 1 lo usan
- 5009 visitas
Consult the website about the ozone layer and choose the best answer to each question: Why is the ozone layer in the atmosphere important? Which types of substances destroy the ozone layer? Where are…
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Read and complete
EduBook Organización
- 3938 visitas
Read and complete: We know about our past because of written and sources. Non-written sources can be visual documents, testimonies or old buildings. The past of our family is called our family . The…
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Periods of history
EduBook Organización
- 3888 visitas
History is the story of the past. We study history to learn about what humans did and how they lived many wears ago. History helps us understand how our ancestors lived and how we evolved. Human history…
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Complete. Matter and measurement
EduBook Organización
- 3874 visitas
Complete the sentences with the missing words: Matter is everything that has . A is the absence of matter. To measure a magnitude is to it with a unit of measurement. The general properties of matter…
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