Unit M Activity 3 To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. Exploration #2, STEP 1: Rubbing a nail so the point end becomes a N-pole. Exploration #2, STEP 1: Rubbing a nail so the point end becomes a N-pole. Exploration #2, STEPS 2&3: Cutting the magnetized nail in half and testing the ends of each piece. Exploration #2, STEPS 2&3: Cutting the magnetized nail in half and testing the ends of each piece./a> Exploration #2, STEP 4: Testing the magnetic strength of half a magnetized nail versus a whole magnetized nail. Exploration #2, STEP 4: Testing the magnetic strength of half a magnetized nail versus a whole magnetized nail. Exploration #3, STEP 2: Cutting a magnetized nail into unequal pieces and testing them. Exploration #3, STEP 2: Cutting a magnetized nail into unequal pieces and testing them. Exploration #3, STEP 3: Cutting the longer piece again and testing the two parts. Exploration #3, STEP 3: Cutting the longer piece again and testing the two parts. Return to Unit M Resources Page Copyright © 2020 Next Gen PET