- Force is a push or pull that may cause motion to start or stop
- Changing the amount of force changes the motion of an object
- Force affects the speed and direction of the motion of an object
- Speed is the distance an object moves over a period of time
- Inertia is the tendency of an object to remain at rest or in motion
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- Scientists classify things into the categories of living and nonliving things
- Plants and animals are the main categories of living things
- Living things have cells
- Classification is based on the characteristics of organisms including their cell structure
- Hereditary traits are passed down through generations by DNA located on chromosomes in cells
- Plant cells differ from animal cells
- Plants are producers, animals are consumers and come consumers are decomposers
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- The earth's relationship to the sun causes night, day, and changes in seasons
- Weather patterns are predictable systems with interrelated parts
- Meteorologists study weather patterns to predict weather
- Scientists use International Weather Symbols to describe weather
- Precipitation is a result of the water cycle
- Weather and climate have major effects on people's lives.
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