friction - a force between two surfaces, force - a push or pull, magnet - a piece of metal with a strong attraction to another metal object., magnetic - being attracted or pulled, Newton - Isaac ........ a scientist who discovered the laws of gravity, longitude - imaginary measuring line running from north to south globe, equator - an imaginary line around the middle of a planet, rhythm - repeated pattern of sound, lever - a bar on a pivot that can lift up, latitude - imaginary lines running from east to west,

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