force, a push or a pull, energy, something that makes things move or change, movement, when something changes position, invisible, cannot be seen but can be felt or noticed, direction, where something is going, cause, why something happens, effect, what happens because of a cause, gravity, the force that pulls objects toward Earth, weight, how heavy something feels because of gravity, fall, to move down because of gravity, magnet, an object that can attract some metals, repel, push away, attract, pull toward, pole, the ends of a magnet, light, energy that helps us see, shadow, a dark shape made when light is blocked, transparent, lets light pass through, opaque, blocks light, source, where light comes from, reflect, when light bounces off a surface, translucent, lets some light pass through, distance, how far apart things are, observe, look carefully, predict, guess what will happen, measure, find the size, length, or amount, record, write or draw what you find.

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