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6.P.2.3 Compare the physical properties of pure substances that are independent of the amount of matter present including density, boiling point, melting point and solubility to properties that are dependent on the amount of matter present to include volume, mass and weight.

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Follow the link below to view a gallery of ancient gold and silver coins. The earliest coin in this gallery is from 185 B.C. What properties of these two metals have allowed for the survival and re-discovery of these coins?

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Lahore Museum, Lahore, Pakistan

This collection represents most major periods of the sub-continent's history like Graeco-Bactrian, Mauryan, Indo-Greek,Indo-Parthian, Kushan, Indo-Scythian, Huns, Hindu Shahia, Arabs, Ghaznavids, the Sultans, the Mughals, the Durranis, the Sikhs, the British and the modern coins of Pakistan.

The collection attracts scholars from all over the world for its rarity and richness.

The collection includes the first coins issued by Mahmood of Ghazna in Lahore bearing the legend of Mahmoodpur, the new name given by Mahmood to Lahore, and the beautiful Zodiac coins issued by Emperor Jahangir.

As a whole, the coin collection of the Museum is an invaluable treasure for the study of the political, economic, social and cultural history of the Subcontinent in chronological order as well as for the study of the development of coin-making technology.

Curator - Sumaira Samad, Lahore Museum
Assisted by - Tariq Mehmood, Lahore Museum
Assisted by - Waqas Ahmad, Lahore Museum
Role - Name, Surname, Job title (optional)

The story featured may in some cases have been created by an independent third party and may not always represent the views of the institutions, listed below, who have supplied the content.

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Lahore Museum, Lahore, Pakistan This collection represents most major periods of the sub-continent's history like Graeco-Bactrian, Mauryan, Indo-Greek,Indo-Parthian, Kushan, Indo-Scythian, Huns, Hindu Shahia, Arabs, Ghaznavids, the Sultans, the Mughals, the Durranis, the Sikhs, the British and the modern coins of Pakistan. The collection attracts scholars from all over the world for its rarity and richness.

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What is gold and what makes it so special? Watch the video to start answering these questions.

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Copyright © 2018 Discovery Education. All rights reserved. Discovery Education is a subsidiary of Discovery Communications, LLC.

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Would you believe that something as common as your cell phone houses this precious metal? Well, it does! Watch the video below to find out more.

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Copyright © 2018 Discovery Education. All rights reserved. Discovery Education is a subsidiary of Discovery Communications, LLC.

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Ancient cultures used gold in a variety of ways, but today we use the precious metal in more modern ways than you might have guessed. Watch these videos to learn how gold continues to help our modern world go round.

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Astronaut Bling: Why Gold Goes to Space on Every Mission | National Geographic

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Gold is used on space suit helmets to reflect infrared light. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible.

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Watch this video explaining why people find gold to be so valuable. As you watch you will be prompted to answer questions about the video. Listen carefully because your responses will be recorded!

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Edpuzzle video lesson. Make any video your lesson. Take a video and crop it, add your voice or embed questions at any point.

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So, what makes gold so special? Continued

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So, what makes gold so special? Continued

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Okay, so clearly gold has been desired and proven useful to mankind for centuries, but what makes it so special? Read the following article, that has been rewordified, from BBC News. Then answer the questions on your worksheet.

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Read the following information and answer the questions for this section on your worksheet.

Gold is not a newly discovered element. In fact, gold has been used in various ways for hundreds of years.

Why gold? Well, it seems that most early cultures were fascinated by metals. Gold is a metal that is found world wide, and so it makes sense that it is mentioned by so many ancient cultures.

It is uncertain when mankind first came in contact with gold. However, gold has been found in caves dating back as far as 40,000 BC.

The first obvious use of gold is by the ancient Egyptians. The Egyptians greatly valued gold as a part of their culture and their religion. They made golden masks, jewelry, and even the tops of the great pyramids were constructed from gold. The Egyptians were also among the first to mine gold and use it as currency, or money.

However, the ancient Egyptians were not alone in their love for gold. The ancient Greeks also greatly valued gold. They saw gold as a sign of wealth, and also used it for currency.

The Incans, Aztecs, and Romans all used gold as well.

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Gold: Ancient Egypt's "flesh of the gods"

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Web Extra: In today's society gold is seen as both a symbol and investment, but in ancient Egypt it was revered as the so-called "flesh of the gods" - a part of immortality. Mo Rocca visits Cairo's Egyptian Museum and traditional bazaars for a closer look at the ancient world's relationship with this very precious metal.

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Let's start by brainstorming. What are some ways that we use gold today? What is it about gold that makes it a good material for this? Record your answers on your worksheet.

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Why do we value gold?
Our society greatly values gold, and we are not alone. Throughout history many cultures have used gold for decoration, currency, jewelry, and even in construction. What makes this metal so desirable and why has it been used in so many different ways? These are the questions that  will be exploring today. So, buckle up and start your time machines, because the answers to these questions are found in the past as well as in the present.

Click the Google link below to open your answer document. You will need to go to "File" and "Make a Copy" so that you can answer the questions in your own document.