What is the center of the solar system?, Earth, Moon, Sun, Mars, Which organ is responsible for pumping blood throughout the body?, Brain, Heart, Lungs, Stomach, What gas do humans need to breathe in to stay alive?, Carbon Dioxide , Oxygen , Nitrogen, Hydrogen , Water changes into vapor through what process?, Melting , Freezing , Evaporation , Condensation , What planet is known as the “Red Planet”?, Venus, Mars, Jupiter, Saturn, What is H₂O commonly known as?, Fire, Water, Sugar , Salt, Which part of the plant makes food?, Roots, Leaves, Stem, Flower, What state of matter has a definite shape and volume?, Solid, Liquid, Gas, Plasma, What do we call the force that pulls objects toward Earth?, Friction , Gravity, Magnesium , Pressure , Which part of the human body controls all activities?, Brain, Lungs, Heart, Skin.

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