okay hi there, love ya site! ok i need help with a project im doing this project about iodine + starch turning blue when theres starch present in the food. got any suggestions? thanks......
Well let's see what do you have so far ?
Do you have this stuff for your project?
no
precipitation
Hello! I'm glad you find the site helpful. Let me assist you with your project on iodine and starch turning blue when starch is present in food.
To demonstrate this reaction, you will need a few materials:
1. Iodine solution: You can purchase iodine solution from a chemical supply store or online. Alternatively, you can make a homemade iodine solution by dissolving iodine crystals in water. Please exercise caution and follow safety guidelines when working with chemicals.
2. Starch-containing food samples: Collect various food samples that contain starch. Common examples include potatoes, bread, pasta, rice, corn, and cereals.
Now, here's a step-by-step guide on how to conduct the experiment:
1. Prepare a set of test tubes or small glass containers for each food sample you want to test.
2. Label each test tube or glass container with the name of the food sample.
3. Take a small piece of the selected food and place it in each labeled container.
4. Add a few drops of the iodine solution onto each food sample, making sure to cover it completely.
5. Observe any color changes. If starch is present in the food sample, it will turn blue or purple-black in the presence of iodine. If no color change occurs, it means the food does not contain starch or has a very low starch content.
6. Record your observations and compare the results of different food samples.
Remember to exercise caution when working with chemicals and always follow safety guidelines. It's also a good idea to ask for guidance from a teacher, guardian, or adult when conducting experiments involving chemicals.
I hope this helps with your project! Let me know if you need any further assistance or have any other questions. Good luck!