Weather
  • WEATHER
    • Earth's Blanket
    • Water Cycle
    • Clouds
    • Weather Instruments
    • Weather pattens
    • Weather Maps
    • Climate Zones
    • Quizzes, Worksheets, Websites
  • SIMPLE MACHINES
    • Inclined Plane
    • Wedge
    • Screw
    • Lever
    • Wheel and Axle
    • Pulley
  • CRCT PRACTICE TESTS
  • ECOSYSTEMS
    • habitats
    • non-living things
    • living things
  • MOTION AND FORCE
  • MOON PHASES

Speed

*measure of the distance an object travels in a certain amount of time

*need to know 2 things to find speed:
   (1) distance the object traveled
   (2) how long it took to get that distance

Velocity

*measure of speed in a certain direction
*speed + direction = velocity

*friction and gravity can change the velocity of moving objects

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