Fourth graders learn that sound is made by vibrations that travel as waves — and that bigger vibrations make louder sounds while faster vibrations make higher-pitched sounds, from a drum to a guitar string.
Students will be able to…
Pluck a guitar string and you can SEE it wiggle — and HEAR a note. What is sound really, and why can you make it louder or higher?
Project this and change the volume and pitch. Watch the wave get taller (louder) or squeeze closer together (higher pitch)!
Tap any phase to open the teacher moves and student actions.
A plucked guitar string wiggles AND makes a sound — how are they connected?
Students investigate.
Students explain.
Students elaborate.
Students conclude.
Aligned to the Next Generation Science Standards (Grade 4 / Elementary Science).
Develop a model of waves to describe patterns of amplitude and wavelength.
Generate solutions that use patterns to transfer information.
Observe energy transfer by sound.
Developing and using models.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students build a simple instrument (like a rubber-band guitar) and change the vibration to make higher and lower notes. A printable sound sheet is in the Science library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.