Mcgraw: Hill Ryerson Science 9 Pdf

They reported the loose wire to their teacher, who thanked them and fixed the circuit before anyone got shocked. Kaitlyn smiled—a real one.

But their victory was cut short by a commotion at the back of the room. Kaitlyn, the quiet student who never spoke, stood frozen beside an open circuit board. A small compass on her desk was spinning wildly—north, south, north, south—even though no magnets were nearby.

Leo rubbed the balloon furiously against his hoodie, then pressed it to the wall. It stuck. “Science win,” he said. mcgraw hill ryerson science 9 pdf

Maya tapped the cover of the textbook. “Blame McGraw Hill Ryerson. Page 298.”

Maya grabbed the textbook and flipped to the electricity unit. “Electromagnetism,” she murmured. “An electric current creates a magnetic field. If the compass is moving without a magnet, there’s stray current somewhere.” They reported the loose wire to their teacher,

Maya pointed to a diagram in the book. “You didn’t rub it long enough. Electrons move from your hair to the balloon. Negative charge builds up. Opposite charges attract the wall.”

“So the broken wire is making an unstable magnetic field,” Kaitlyn said, her voice steadier now. Kaitlyn, the quiet student who never spoke, stood

“You two are actually good at this,” she said.