price
They are called indicators.
It means that papers are better than shoes so it is better to wear out your shoes than your paper
You will need 5 copper coins witch are pennies and 5 non-copper coins witch are dimes, pieces of paper towel and lemon juice. First you take a piece of paper towel and dip it in lemon juice. place it on top of a copper coin. then you take a non-copper coin and place it on top of the paper towel. After, you take a piece of paper towel and put it on top of your non-copper coin. Do the same thing as a pattern until you have used 5 copper coins and 5 non-copper coins. Make sure you have a piece of paper towel in between each coin. Finally, wet each finger tip and hold the ends of your battery. Do you feel a BZZ?
It depends. Is it in a box? othrwise probably not much. These dolls on eBay gor for between 3 and 20 dollars depending on completeness of the outfit, cleanliness and the paper work is not as important because colectors often buy birthcertificate lots.....and use those instead. good luck!
yes the shorter it is and the more lightweight it is the better your tin can telephone will be.
Red cabbage juice and litmus paper both serve as pH indicators, but they have different advantages. Red cabbage juice is natural, easy to prepare, and can provide a color spectrum for various pH levels. However, litmus paper is more standardized and offers quicker, more precise results for determining acidity or alkalinity. Ultimately, the choice depends on the context and the level of accuracy required.
blue
They are called indicators.
You will have made a pH indicator. Just like litmus paper.
Litmus paper, phenolphthalein, and red cabbage juice are substances that change color in response to changes in acidity or basicity. Litmus paper turns red in acid and blue in base, phenolphthalein is colorless in acid and pink in base, and red cabbage juice turns red in acid and blue in base.
You can use litmus paper or purple cabbage juice to test if a substance is acidic or not. Blue litmus paper turns red under acidic conditions. If you search 'litmus paper chart' online you can find some pretty good charts to find just how acid the substance is.
Potato juice is typically neutral or slightly acidic, so if you test it with litmus paper, blue litmus paper will remain blue, and red litmus paper will remain red. This indicates that potato juice does not change the color of either type of litmus paper, reflecting its neutral pH.
Blue litmus paper would turn red in orange juice.
Lemon juice is an acid therefore, it turns blue litmus paper red and red litmus paper remains red
Litmus paper and red cabbage juice are pH indicators, meaning they change color in response to the acidity or alkalinity of a solution. They are not specifically related to AIDS; instead, they are used to test the pH levels of various substances. When mixed with an acidic solution, litmus paper turns red, while red cabbage juice can shift through a spectrum of colors depending on the pH level. These color changes help identify the nature of a solution but are not linked to any specific disease or condition.
Litmus paper would turn red if apricot juice, which is acidic, was dropped on it. This is because litmus paper turns red in the presence of an acid.
Litmus paper is used to test the acidity or alkalinity of a solution. Tomato juice is acidic, so when litmus paper is dipped into it, blue litmus paper will turn red, indicating the acidic nature of the juice. Red litmus paper will remain red since it is already acidic.