Watch this video to see how molecules are in motion all the time.
Read about atoms on the link below, then answer the following questions.
1. An atom is a combination of electrons, neutrons, and ______________.
2. Which is the simplest atom, it has only one proton and one electron.? _______________
3. When many atoms of different kinds get together, they make clumps or gropus of atoms called _____________.
