You dip the paper into the substance of your choice and it will change colour. You can then determine how strong an acid or base is by judging the colour of the paper to the colours on the pH scale. registered in England (Company No 02017289) with its registered office at 26 Red Lion Thank you for your response. Blue litmus paper turns red under acidic conditions (pH below 4.5) while red litmus paper turns blue under alkaline conditions (pH above 8.3). Neutralisation is done when the same amount of an acid is added to a base. Therefore, there is a scale called the pH scale which ranges from 1-14. There are ways to make a substance neutral (having a pH the same as water). Susan W (author) from The British Isles, Europe on October 24, 2013: Thanks for reading this, sorry that it took me so long to reply! Another method to determine whether a solution is an acid or base is to use litmus paper. I have a middle schooler that I am going to use this with, all in the name of fun. It's fun and easy to make, and it can be made using household ingredients. For more accuracy, try using Universal Indicator Paper or a pH meter. I agree, checking the pH of a swimming pool is vital. I am beginning to think that my chemist bought Litmus is old. If I was to do this experiment with my children, what practical applications would it be helpful for? I'm definitely going to have to play around with making litmus paper. If it turns red, that substance is an acid. So, these bases neutralise the acids making them virtually harmless. I voted up and I'm pinning it on my Things You Really Need to Know board. Now that you mention it, I think I will write more kitchen science hubs with more interesting experiments. Dip a strip of litmus paper into the substance. Created: Apr 12, 2019| Updated: May 19, 2019. Dip a strip of litmus paper into the substance. Primarily aimed at the upper end of KS2 but I have used this with Year 4 and Year 7 as all files can be modified to suit different ages and abilities. FlourishAnyway from USA on January 01, 2014: This is a wonderful way to engage a budding young scientist on a holiday break while school is not in session. Cut your blotting paper into small strips. Indigestion is caused by strong acids in your stomach. The acid goes on top, and the base goes on the bottom. Acids and bases are quite an important part of our lives. Susan is a science geek, and if that wasn't enough, she gets all nerdy over technology too. To all of you out there, the very same happened to me and I'm sorry I didn't address this issue earlier. I am so glad you liked it! Blue litmus paper turns red when a solution is acidic; red litmus paper turns blue in basic solutions. Using Colour in Setting Descriptions - unit of work, English Lesson Starters Fun and Interactive, Entire OCR A-Level Chemistry Course Powerpoint, AQA Combined Science Trilogy - Chemistry Whole Unit 4 - Chemical Changes, ALL Chemistry Required Practical Revision Questions. There are a number of worksheet options depending on how you would like to approach the lesson, a powerpoint presentation with plenary slides to assess understanding and a loop card game, either to be played as a class, group or individually matched. This website and its content is subject to our Terms and If it stays the same, that substance is neutral. To use this with, all in the name of fun to make this and! This issue earlier are quite an important part of our bodies signalises our health and how healthy our body.. An aqueous solution that functions similarly with it for you knowing the pH of bodies. Would love to make, and it can damage limestone monuments and kill fish in the laboratory need know... 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