Views: 7 Author: Site Editor Publish Time: 2021-07-01 Origin: Site
In learning and playing, kids can't resist amazing color-changing chemistry. It‘s fizzy, The changes color like magic, and it works over and over again. Alpha Science Classroom's chemistry experiments for kids today are completely non-toxic, made from ordinary kitchen items. This is one of our favorite kitchen kids' science experiments. This is the most common kid's science experiment activity, to help children understand the charm of science, to give children the best learning enlightenment and ability cultivation.
Alpha Science Class: Fizzy Color Changing Chemical Reaction materials
Half head of red cabbage
Ice cube tray
High transparent cup
Alpha science classroom: Fizzy Color Changing Chemical Reaction production steps
Step 1: First, we made the pH indicator ice cubes. Children will recognize these directions from another kitchen science experiment. We made our own pH indicator using red cabbage:
Step 2: children carefully cut the red cabbage into small pieces. Put 2-3 cups in a saucepan and cover with water. Bring the solution to a boil, then turn off the heat. Let it sit for about 30 minutes to cool down.
Step 3: children pour the cabbage water through a filter into a jar or large cup. The dark purple liquid in the jar is a pH indicator.
Step 4: children mix the cabbage water with enough baking soda to make the solution blue-green. You may need a few tablespoons. There is no need to be exact.
Step 5: The children pour this liquid into the compartment of the ice cube tray. Freeze for several hours to make ice cubes.
Step 6: children pour ice cubes into the baking dish or casserole. Fill a cup with vinegar. Use a plastic straw, spray ice cubes with vinegar, and observe what happens. Will the ice cubes hiss? Will ice cubes change color?
Step 7: Now is the really interesting part. Put the indicated ice cubes in a glass of vinegar. what's happening? You may want to put your cup in the baking tray in case it overflows! Add more ice cubes to your vinegar glass. What color is the current solution?
Alpha science classroom: the science behind Fizzy Color Changing Chemical Reaction
There are several different scientific principles, the alpha science classroom tells the children. First, the foam part. This is a simple reaction between baking soda and vinegar. Old classic! Since ice cubes contain baking soda, they react with the vinegar in the glass to produce carbon dioxide bubbles: the hiss you see and love.
Next is the discoloration part. We started with blue-green ice cubes and ended with bright pink vinegar. As we add more ice cubes, the solution becomes darker and darker, eventually turning purple. This is really cool!
The color will change due to changes in pH. Scientists use pH to measure the acidity of a solution. Baking soda is basic, so when red cabbage juice is mixed it will turn blue-green. Vinegar is acidic and will make the red cabbage juice pink! As more baking soda is added to the vinegar, the solution becomes more neutral, which is why it turns purple.
Today, the carbonic acid Fizzy Color Changing Chemical Reaction in the Alpha Science classroom is complete. Alpha Science Toys hope your children and students enjoy this kid's science experiment! These chemistry experiments for kids are easy to do and clean up. It's exciting for kids to see the hiss and the color change! This makes a dull afternoon at home exhilarating and educational.