Colors colors everywhere

We did this graph that shows the different colors and it looks like the rainbow its like skittles of the rainbow and the graph shows the different wavelengths of the colors so ya and there is a test on friday and i am going to fail it and i need to STUDY alot so i can pass a test because i have not passed a test in this chem class ahahahahahahahah HELP!!!!!!! i can only help myself so i need to study alot alot alot alot!!!!!! Skittles taste the Rainbow!!!! bye bye bye bye bye bye