Acids and bases are essential for many chemical processes in everyday life. Also, acid-base reactions like our baking soda and vinegar make for cool chemistry for kids! Learn how you can identify an acid and a base and how to measure the acidity and alkalinity of solutions with the pH scale chart. We love fun, hands-on chemistry for kids!
What is the PH Scale Chart?
The pH scale measures how acidic or basic a substance is. Its range is from 0 to 14. Acids have a pH from 0 to 7, while bases have a pH above 7. Pure water has a pH of 7, which is neutral and means it is neither an acid nor a base.
We use the pH scale chart to measure substances’ acidity or basicity (alkalinity) because it helps us understand how these substances can affect living things and the environment. It also can help us make better decisions about what chemicals we use and how we use them.
A pH scale chart for kids is a simple, visual tool used to explain how substances can be either acidic, neutral, or basic (alkaline) based on their pH levels. The scale ranges from 0 to 14, with 7 being neutral. Here’s a breakdown:
- Acids (pH 0-6): These substances are sour or sharp, like lemon juice or vinegar. The lower the number, the more acidic a substance is.
- Neutral (pH 7): Water is neutral, meaning it’s neither an acid nor a base.
- Bases (Alkaline) (pH 8-14): These substances are often slippery and can be found in cleaning products, like soap or baking soda. The higher the number, the more basic the substance is.
Testing pH
If you want to test for acids and bases at home, why not make your own pH indicator from red cabbage. Depending on the pH of the liquid, the cabbage turns various shades of pink, purple, or green! It’s incredibly cool to watch, and kids love it!
Check out>>> Red Cabbage Indicator
What are Acids and Bases?
Acids are substances that have hydrogen ions and can donate protons. Acids have a sour taste and can turn litmus paper red. They can also react with certain metals to produce hydrogen gas.
Many fruit juices, such as cranberry juice, apple juice, and orange juices, are weak acids. Lemon juice and vinegar are slightly more vital acids.
Bases are molecules that can accept hydrogen ions. Bases have a bitter taste and can turn litmus paper blue. They feel slippery to the touch and can neutralize acids.
Many vegetables have weak bases in them. A stronger base would be household ammonia. Other examples of bases include soap and baking soda.
ACID BASE REACTIONS
What happens when an acid reacts with a base? When an equally strong acid and base are combined, they become neutralized and the pH levels cancel each out. The reaction produces a salt and water, which has a neutral pH.
Free Printable PH Scale Chart for Kids
Acid Base Experiments
Vinegar and baking soda experiments are classic acid-base reactions. You’ll also find experiments that just use an acid such as vinegar or lemon juice. We have so many fun examples of real life acid-base reactions that your kids will love to try! Check out these acid-base experiments below.
Balloon Experiment
Blow up a balloon with an acid-base reaction.
Baking Powder Science
Find out what happens to baking powder when you add water. Here is a simple acid-base reaction that you use in baking.
Bottle Rocket
Make a rocket from a water bottle with a vinegar and baking soda reaction. This experiment is sure to be a blast!
Citric Acid and Baking Soda
We gathered up some of our favorite citrus fruits to experiment with a fun acid-base reaction. Which fruit makes the biggest chemical reaction; oranges or lemons?
Cranberry Secret Messages
Cranberry juice and baking soda is another fun acid-base experiment to try. Plus, find out how you can use it to send secret messages to a friend.
Dancing Corn
Bubbling corn or dancing corn looks like magic but really it is a fun variation of the acid-base reaction, baking soda and vinegar.
Egg in Vinegar Experiment
Can you make an egg bounce? What happens to the shell? Does light pass through it? Find out when you add an egg to a container of vinegar.
Fizzy Lemonade
Find out how to turn an acid base reaction into a fizzing drink!
Lemon Volcano
Make a fizzing lemon volcano when you add baking soda to lemon juice.
Baking Soda and Vinegar Volcano
Take the baking soda and vinegar reaction outside with an easy sandbox volcano!
Salt Dough Volcano
Make your own homemade volcano science project from salt dough, and baking soda and vinegar.
Fizzing Slime Volcano
This is one of the coolest slime recipes we have to date because it combines two things we love: slime-making and baking soda vinegar reactions. Learn how to make an unique slime recipe while also experimenting with acids and bases!
Dying Eggs With Vinegar
Here’s a fun way to color real eggs with an acid-base reaction.
Seashells In Vinegar
What happens when you put a seashell in vinegar? What are the effects of ocean acidification? Explore what happens to seashells in vinegar.
Helpful Science Resources To Get You Started
Here are a few resources to help you introduce science more effectively to your kiddos or students and feel confident when presenting materials. You’ll find helpful free printables throughout.
- Best Science Practices (as it relates to the scientific method)
- Science Vocabulary
- All About Scientists
- Free Science Worksheets
- DIY Science Kits
- Science Tools for Kids
- Scientific Method for Kids
- Citizen Science Guide
- Join us in the Club
SCIENCE PROJECTS
Working on a science fair project? Then check out these helpful resources below and grab our free printable science fair project pack! NEW! Includes acid & bases and variables printables.
Printable Science Projects For Kids
If you’re looking to grab all of our printable science projects in one convenient place plus exclusive worksheets and bonuses like a STEAM Project pack, our Science Project Pack is what you need! Over 300+ Pages!
- 90+ classic science activities with journal pages, supply lists, set up and process, and science information. NEW! Activity-specific observation pages!
- Best science practices posters and our original science method process folders for extra alternatives!
- Be a Collector activities pack introduces kids to the world of making collections through the eyes of a scientist. What will they collect first?
- Know the Words Science vocabulary pack includes flashcards, crosswords, and word searches that illuminate keywords in the experiments!
- My science journal writing prompts explore what it means to be a scientist!!
- Bonus STEAM Project Pack: Art meets science with doable projects!
- Bonus Quick Grab Packs for Biology, Earth Science, Chemistry, and Physics
