What is Electromagnetic Spectrum
seven colors that make up white light
What is visible spectrum?
tiny bundle of energy
What is a photon?
wave in which the particles of the medium move up and down at right angles to the direction of the wave motion
What is transverse wave?
object that reflects light
What is an illuminated object?
process by which plants use energy from the Sun to make food
What is photosynthesis?
range of electromagnetic waves
What is electromagnetic spectrum?
straight line that shows the direction of light
What is a ray?
Speed, wavelength, frequency, and amplitude
What are the four properties of light waves?
material that transmit some light
What is translucent?
substance in plants that absorbs the Sun's light and gives plants their green color
What is chlorophyll?
Longest wavelength and the lowest frequency
What are Radio Waves?
Can be changed into heat, electricity, and other forms of energy
What is Light?
distance from the crest or trough on one wave to the crest or trough of the next wave.
What is a wavelength?
material that transmit light easily
part of the green plant cells where photosynthesis takes place
What is chloroplast?
Has Short wavelength and High frequency
What are Gamma Rays?
travels in straight lines
What is Light?
number of light waves that pass by a point each second
What is the frequency?
material that blocks light
What is opaque?
Chlorophyll absorbs all the Sun's light EXCEPT
What is Green light?
Used to kill bacteria and can cause sunburn
What are Ultraviolet Rays?
Made up of a stream of many photons
height of a wavelength
What is the amplitude?
Object that gives off its own light
Luminous object
The food that a plant makes
What is glucose (sugar)?