RAINBOW LAB
Materials1. Scale/ Balance
2. 1-100mL Graduated Cylinder
3. 2- 150mL Beakers
4. Pipette
5. Sheet of White Paper
6. Salt
7. Food Coloring (Red, Blue, Green, Yellow)
8. Water
2. 1-100mL Graduated Cylinder
3. 2- 150mL Beakers
4. Pipette
5. Sheet of White Paper
6. Salt
7. Food Coloring (Red, Blue, Green, Yellow)
8. Water
You can use a scale to get the amount of salt you need for each problem. Once you have all the solutions in their own beakers, mix them until all the salt has been mixed in each one. When all of the salt have been mixed in each beaker, you can finally start mixing them together. Take the blue beaker first, and put 20 mL into the cylinder.
We took a pipette and the green solution. Using the pipette, take a small amount of the green solution and slowly drop one drop of the solution down the side of the cylinder. Your partner will need to slowly tip the cylinder for you to be able to do this. Add another 20 mL of the other solution you will see that the solutions do not mix together with each other. If you continue doing that with the other solutions as well, you will have all the colors standing on top of one another.
We took a pipette and the green solution. Using the pipette, take a small amount of the green solution and slowly drop one drop of the solution down the side of the cylinder. Your partner will need to slowly tip the cylinder for you to be able to do this. Add another 20 mL of the other solution you will see that the solutions do not mix together with each other. If you continue doing that with the other solutions as well, you will have all the colors standing on top of one another.