# What is a spectrum of light kids?

## What is a spectrum of light kids?

A spectrum, plural: spectra, is a band of several colours: violet, indigo, blue, green, yellow, orange and red. A spectrum can be seen if the Sun’s light is passed through a prism and allowed to gather on a white screen. This visible spectrum is part of the larger electromagnetic spectrum.

How can a spectrum of light be produced?

Production of Line Spectra An electron orbit a nucleus in a stable energy level. As electrons jump down to the n = 2 orbit, they emit photons of specific frequency (hence colour) that can be seen as emission lines in the visible part of the em spectrum. This visible set of lines is called the Balmer series.

### How can I make a spectrum at home?

Make sure the gap is not be wider at the top or bottom. This will make a very small slit through which light enters the spectrum….Gather your materials.

1. A cardboard box.
2. A DVD or CD.
3. 2 business cards (or a 3×5 cards).
4. A cardboard tube.
5. Aluminum tape or aluminum foil and glue.
6. Scissors.
7. Pen or marker.

How do you explain wavelength to a child?

Wavelength is the measured distance between two identical points on two back-to-back waves. Thinking back to our ocean example, to measure the wavelength we would measure the distance between two back-to-back crests, or we could measure the distance between two troughs, which are the lowest part of a wave.

## How does a homemade spectroscope work?

A spectroscope, or spectrometer, splits light into the wavelengths that make it up. Early spectroscopes used prisms that split the light by refraction—bending the light waves as they passed through glass.

How do astronomers learn about stars?

The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy. Today, this process uses instruments with a grating that spreads out the light from an object by wavelength. This spread-out light is called a spectrum.

### What is light for kids?

Light is a form of energy. The Sun is a very important source of light energy. Without the energy from the Sun, there would be no plants or animals on Earth’s surface.