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Hi friends, it's Esther. Today on this experiment we are going to see what happens when we put a dirty coin in different drinks.

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What's your favorite drink?

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Here we have some water, milk, lemonade and cola. You also need cups, labels and dirty coins.

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First, label your cups like this and pour each drink in each cup.

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water, milk, lemonade and coke. Place a dirty coin in front of each label drink

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and take a photo. We will do another one at the end. Now put the coins in the

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drinks and make a hypothesis. What do you think is going to happen? Which drink

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will give us the best results? Write your hypothesis on your lab report. Now we are

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going to wait 12 hours. Okay let's take the coins out and check and see what's

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happened. Let's start with the coin in the water. This coin hasn't changed at

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all. It is still really dirty. What about the coin in the milk? The coin in the

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milk hasn't changed much. It's still dirty. What about the coin in the

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lemonade. Wow! It's definitely changed. It's a lot shinier. Last of all, the coin in

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the cola. Wow! The coin in the cola looks new. It's really shiny and clean. This is

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where the camera helps. If you take another photo now, you can compare the

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coins before and after. Water hasn't changed the coin at all. Soft drinks

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contain lots and lots of sugar and a little acid. The acid gives it a fruity

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flavor and stops the sugar from going bad. These drinks are very corrosive. The

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acid breaks down the dirt from the coins. Drinks like these are good for cleaning

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coins but not too good for our bodies well this experiment was interesting now

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you should try write the results and your conclusions in your report bye