Matter
Three states of matter
Solid, liquid, gas
Movement of Earth spinning once on its axis every 24 hours, causing day and night
Animals that only eat plants for energy
Herbivores
Force that pulls objects towards the center of the Earth
Gravity
Tool that measures temperature
Thermometer
Process where liquid becomes a gas when heat is added
Evaporation
Star at the center of our solar system that provides heat and light energy
Sun
Process green plants use to convert carbon dioxide, sunlight, and water into oxygen and sugar
Photosynthesis
Force that resists motion of two surfaces sliding against each other
Friction
Info collected using your 5 senses in an experiment
Observation
Amount of mass in a given volume of a substance
Density
Breakdown of rocks into smaller pieces by wind, water, ice, etc.
Weathering
An environment where a specific plant or animal naturally lives and finds resources
Habitat
Simple machine with a bar that pivots on a fixed point called a fulcrum
Lever
A conclusion based on observations and prior knowledge, not direct observation/data alone
Inference
A combo of two or more substances that can be physically separated, like a salad or sand in water
Mixture
Wind, water, or ice transports soil from one place to another
Erosion
Complex network of interconnected food chains to show a flow of energy
Food web
An object at rest tends to stay at rest, and an object in motion tends to stay in motion due to what property
Inertia
Repeating an experiment multiple times to ensure the results are reliable and accurate
Trials
A change that forms one or more new substances with different properties, like rusting iron
Chemical change
Darker, cooler areas on the surface of the sun caused by changes in magnetic fields
Sunspots
Physical features/behaviors that help an organism survive in its specific environment
Adaptations
Distance traveled divided by the time it took to travel that distance makes up
Speed
The variable in an experiment that the scientist changes directly.
Independent variable.