Science 9 Pdf - Mcgraw Hill Ryerson

“So the broken wire is making an unstable magnetic field,” Kaitlyn said, her voice steadier now.

“It’s not working,” he grumbled.

Maya read aloud: “ Current in a wire creates a circular magnetic field. The direction of the compass needle will change if the current is alternating or unsteady. ” mcgraw hill ryerson science 9 pdf

Maya flipped through her worn copy of McGraw Hill Ryerson Science 9 , searching for the section on static electricity. Outside the classroom window, rain streaked the glass. Inside, her lab partner, Leo, was trying to stick a balloon to the wall.

Leo rubbed the balloon furiously against his hoodie, then pressed it to the wall. It stuck. “Science win,” he said. “So the broken wire is making an unstable

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

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.” The direction of the compass needle will change

Leo grinned. “Best field trip we never left the classroom for.”

If you’d like, here’s a short, original story instead, inspired by a Grade 9 science class using that very textbook: