Science topic

Grade 8 forces and motion

Pushes and pulls, simple machines, magnets and building strong structures. Here is what we have for Grade 8.

Lessons

Forces and Motion: Crash, Push and Stop

Why you lurch forward when the bus brakes, how fast a toy car really goes, why heavier carts hit harder, and how to build a crumple zone that saves an egg. Four lessons on inertia, speed, mass and stopping safely.

Free tools

Lever Lab

Put weights on a seesaw and balance it. Discover the law of the lever (weight times distance) by experiment, then solve balance puzzles.

Forces and motion in other grades:Kindergarten Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 All grades