How many colors are in the rainbow?
Q: How many colors are in the rainbow?
A: There are seven colors in the rainbow, including blue, red, orange, yellow, green, indigo, and violet.
Q: What is the wavelength of blue light?
A: The wavelength of blue light is about 470 nanometers, which is shorter than the wavelengths of indigo and violet.
Q: What is the significance of the color blue for the Earth?
A: Blue is the color of the Earth's sky and sea. Earth looks blue when seen from outer space by astronauts.
Q: What does the color blue signify?
A: Blue is a color used to show coldness. It can also be the color of lips if one is chilly.
Q: What bird is commonly associated with the color blue?
A: The bluebird is commonly associated with the color blue.
Q: What is the name of the cool blue color that a blue jay has?
A: The cool blue color of a blue jay is simply called "blue."
Q: Where does blue rank in terms of wavelength in comparison to other rainbow colors?
A: The wavelength of blue light is shorter than the wavelengths of indigo and violet, but it is longer than the wavelengths of red, orange, yellow, and green.
