Electronic l2

Question 1 Step 1: Set up a simple circuit test with a 9V battery, wires, a small bulb, and switch. Insert each material between two wires to test if the bulb lights up (high conductivity), glows dimly (low), or not at all (none). Materials tested: copper wire, aluminum foil, plastic ruler, paper clip (wait, paper), iron nail, rubber band. Step 2: Record results in table. |l|c|c|c| Material & High & Low & None \\ Copper wire & & & \\ Aluminum foil & & & \\ Iron nail & & & \\ Plastic ruler & & & \\ Paper & & & \\ Rubber band & & & \\ Conductors (high conductivity): copper wire, aluminum foil, iron nail. Non-conductors (none): plastic ruler, paper, rubber band. No low conductivity observed in tests. Question 2 Step 1: Create model of a helium atom (2 protons, 2 neutrons, 2 electrons). Resources used: Styrofoam balls: 2 small white (protons), 2 medium gray (neutrons), 2 tiny black (electrons). Toothpicks for bonds. Clay for nucleus base. Wire for orbits. Paint: red for protons, blue for neutrons. Step 2: Assembly process. Step 2a: Form nucleus by sticking 2 proton balls and 2 neutron balls together with toothpicks into a clay base (label "Nucleus"). Step 2b: Bend thin wires into circular orbits around nucleus. Step 2c: Attach electron balls to wires at opposite points on first orbit. Step 2d: Paint protons red, neutrons blue, electrons black. Label parts. Model shows protons (+ charge) and neutrons (neutral) tightly packed in center nucleus. Electrons (- charge) orbit in shells. (Photo of model would be inserted here showing labeled 3D structure.) Final Answers Q1: Conductors - metals (copper, aluminum, iron); Non-conductors - plastic, paper, rubber. Q2: Helium atom model assembled as described with protons/neutrons in nucleus, electrons orbiting.