Waves and Information
Grade 4 Science · Alaska, USA
Explore sound waves, light waves, and how information travels.
Lessons
What Are Waves?
A wave is a disturbance that moves energy from one place to another. Waves are all around us in the form of sound, light, and water.
Properties of Waves
Waves have measurable properties like wavelength, amplitude, and frequency.
Sound Waves
Sound is made by vibrations that travel through air, water, or solid objects. Sound cannot travel through empty space.
Light and Color
Light is a type of wave that you can see. White light is actually made up of all the colors of the rainbow.
Digital and Analog Signals
Information can be sent using analog or digital signals. Digital signals are used in most modern technology because they are more reliable.
People Also Ask
What topics are in Waves and Information for Grade 4 Science?+
The Waves and Information chapter covers multiple lessons aligned to the Alaska curriculum. Browse all lessons below to see the full topic list.
Is Waves and Information part of the Alaska curriculum?+
Yes, Waves and Information is part of the official Grade 4 Science curriculum in Alaska, USA.