This Friday (June 11th), we will explore the eruption area of acid-base chemistry in our new kids video series “Summer School with Live Science”.
In this week’s article, Live Science producer Diana Whitcroft, sodium Baking soda (baking soda) and citric acid (lemon juice in this case). This fun experiment is a great way to introduce your young mind to the world. Chemistry..
Every Friday at 3:00 pm EDT (12:00 pm PDT), Diana hosts a summer school with live science. Live Science Facebook, YouTube And twitter page.Every week, the series explores different areas of stem (Science, Technology, Engineering, Mathematics) Through simple hands-on experiments that you and your child can follow together at home.
Disclaimer: All scientific experiments, recipes, and methods are highly recommended to be tried only under adult supervision. Adults need to handle or help with potentially harmful equipment and ingredients. Be sure to wash your hands thoroughly after conducting the experiment. Avoid contact with your face or eyes when conducting experiments, and wear eyeglasses or protective goggles if possible. Do not take any ingredients during or after this experiment.
Lemon Volcano: Material
Age range: 5-10 years
- Tray or cookie sheet
- Paper (optional)
- Cutting knife
- Popsicle stick
- Food coloring
- Dishwashing detergent
- baking soda
Step 1: Prepare your workstation
Place the tray on a side that is well covered with newspaper. Optional: Place the paper in the tray. A volcano erupts here. Once the paper catches the colorful liquid, you can turn it into artwork.
Step 2: Prepare the lemon
Cut a small piece of the bottom of the lemon for an adult to make it stand upright. Then cut off the top of the lemon to expose the inner pulp and juice. Use an ice lolly stick to grind the inside of the lemon so that the “meat” or fleshy interior is completely pushed down and the lemon is almost filled with juice. Be careful not to puncture the lemon zest.
Step 3: Choose a color
Squeeze a few drops of food coloring into lemon. The amount of food coloring used depends on the size of the lemon and the amount of juice it produces. Little lemon with little juice: 2-3 drops. Large lemon with plenty of juice: 4-5 drops. Try different color combinations and see what comes out! You can also spout two or three lemons at a time to give the paper a tie-dye effect. Next, spray the lemon with dish soap.
Step 4: Erupt the volcano
Using a spoon, sprinkle a few teaspoons of baking soda on the lemon. Again, you need to adjust the amount depending on the size of the lemon. Small lemon with less juice: 2-3 teaspoons. Large lemon with plenty of juice: 4-5 tsp. You should see bubbling and bubbling immediately, but you may need to use a spoon or popsicle stick to mix the juice and baking soda better. Your lemon now begins to overflow with colorful bubbles.
Document this experience on social media or firstname.lastname@example.org.. Please take a look at the results so that we can introduce them in the photo gallery.
Step 5: Paint!
Now that the explosive fun is over, it’s time to be creative. Use your hands, paintbrush, and sponge to create your own work of art from the colorful liquids left on the paper. Get rid of the lemons and go to town! Be careful not to overpaint the paper. If you combine too many colors, the colorful canvas turns into a large gray mass (unless you really like gray, of course).
Science behind Lemon Volcano
When baking soda was added to the lemon juice, it foamed and foamed. This is because the combination of baking soda (baking soda) and citric acid (lemon juice) produces carbon dioxide and a compound called sodium citrate, which reacts. It is carbon dioxide that causes all these bubbles (remember that CO2 is the gas that whips water in sodas and selzers). We know that carbon dioxide is the main gas we exhale when we breathe. It occurs naturally in the Earth’s atmosphere and is emitted from natural resources such as geysers (and volcanoes) and industrial processes.
Sodium citrate is a sodium derived from citric acid. It is used in various daily necessities. It is used as an anticoagulant for blood products and as an acidity regulator for foods.
Live Science Summer School: Lemon Volcano
Source link Live Science Summer School: Lemon Volcano