Which statement best describes matter?, Matter is made of atoms, Matter is made of sound, Matter does not take up space, What is the smallest unit of matter?, Molecule, Cell, Atom, Which of the following is true about molecules?, A molecule is formed when atoms join together, A molecule is smaller than an atom, A molecule is the same as a proton, Which particles are found in the nucleus?, Electrons only, Protons and neutrons, Molecules, Electrons move in:, Energy levels around the nucleus, Between different atoms only, Inside the nucleus, What is the charge of a proton?, Positive (+), Negative (−), Neutral (0), Why don’t electrons fall into the nucleus?, Protons push them away, They move quickly in fixed energy levels, Neutrons block them, What happens when an electron jumps to a higher energy level?, It loses energy, It disappears, It gains energy

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