1. Without a medium, sound cannot travel
2. Afoms are basic building blocks of matter that make up
everything
3. Protons are small particles that spin around the center of
the atom holding a negative (-) charge while electrons are
particles in the center of an alom that hold a positive ft)
charge.
4. The sun's energy travels as a visible light the only EM
wave that can be seen by the naked oyes
5. Sound is a lorm of energy produced by hitling Iwo objects
together​