1) Particles of atoms a) Sun, Moon, planets b) cell, tissue,organ c) proton, neutron, electron d) comets, stars, meteors e) cement, brick, stone f) solid, liquid, gas 2) Charge of Proton a) positive b) negative c) neutral d) magnetic 3) Substance with one type of atom. a) compound b) mixture c) solution d) element 4) Which instrument is used to measure temperature? a) b) c) d) 5) Which is a drawing of a water molecule? a) b) c) d)

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