What has to happen in order for dew to form on grass?

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?