Gravity, An invisible force that pulls all objects towards the centre of the Earth, Mass, How much matter (stuff) something is made of, Force, A push or a pull that can make something move, Inertia, When something resists changing its motion. It stays still or keeps moving unless a force changes it., Static Electricity, An imbalance of electric charges on a surface that can move hair or small objects, Electric Energy, The power used to make lights and electronics work, Universe, Everything that exists, including stars, planets, space, and galaxies

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