Read the introduction [paragraphs 1-2] and the final section, “An Astronomer's Greatest Thrill.” What is the connection between these two sections? (Newsela)

What will a positive and a negative charge do if they are separated from each other?

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom