The crust, What layer of the Earth do we live on?, Earth spinning on its axis, What causes day and night on Earth?, Gravity, What is the name of the force that pulls objects toward Earth?, Erosion, What do we call the movement of rocks and soil by wind or water?, The Moon, Which object orbits the Earth?, Sunlight, water, and air (carbon dioxide), What do plants need to make their own food?, Roots, What part of the plant takes in water from the soil?, Herbivores, What do we call animals that eat only plants?, They help with pollination, Why are bees important to plants?, The respiratory system, What body system helps humans breathe?, Gas, What state of matter is air?, It changes into a liquid, What happens when a solid melts?, Hydrogen and oxygen, What is water made from?, A physical change, Is mixing sand and water a chemical or physical change?, Solid, What state of matter has a fixed shape and volume?, Light and heat energy, What type of energy comes from the Sun?, The shadow gets bigger, What happens to a shadow when the light source moves closer?, A lever, What simple machine is a seesaw an example of?, Friction, What force slows objects down when they rub against each other?, A force, What makes objects start moving, stop moving, or change direction?

General Science Knowledge 1

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