Science - concentration and dilution

Hi reader today in science we are learning about what is concentration and dilution. We are also making a little experiment 

Concentration - is a measure of how much solute has been dissolved into the solvent.

Dilution - Making something less concentrated.

Aim:  Carry out a serial dilution with potassium permanganate. 

Experiment: 

Equipment: A potassium permanganate crystal, six large test tubes, tweezers, a plastic transfer pipette, a test tubes rock. 10 ml. measuring cylinder.

Hypothesis: I think it will go change the water.

Method:

1. Place the six test tubes in a test rack. label the rack with numbers 1-6   
2.  Using the measuring cylinder, fill test tubes 1 with 10 ml. of water. fill the measuring test tubes with 5 ml. of water.
3. Using your tweezers, add a single cylinder of potassium permanganate to test tube 1.
4. Gently shake the test tube until the crystal has dissolved.
5. Using the transfer pipette, carefully 5 ml. from test tube 1 and pour it into test tube 2.
6. rinse the transfer pipette thoroughly to ensure that no purple solution remains.
7. Gently shake the test tube 2 and repeat the transfer process, transferring exactly 5 ml. of solution from test tube 2 to test tube 3.
8. rinse the pipette again and repeat the transfer process of test tube 4, 5 and 6.