| A | B |
|---|
| Problem | What you are trying to solve |
| Observations | Things you notice using all your senses. |
| Hypothesis | Educated Guess |
| Experiment | Way to test a hypothesis |
| Conclusion | Answer to problem using your data |
| Law | A rule of Nature – Something that happens “every time” |
| Theory | An explanation of how or why something happens based on observations. |
| Quantitative Data | data involving numbers |
| Qualitative Data | Data involving descriptions (color etc.) |
| Variables | things that change in an experiment |
| Independent | Variable scientist controls or changes. Goes on bottom of graph |
| Dependent | Variable that responds to or depends on independent variable. Goes on side of graph. |
| Meter | Base Unit of length in Metric system (m) |
| Centimeter | 1/100 of a meter (cm) |
| Millimeter | 1/1000 of a meter (mm) |
| Meterstick | device to measure length |
| Volume | Amount of space something takes up (Length x width x height) |
| Liter | Base unit of Volume in Metric system (L) |
| Milimeter | 1/1000 of a liter (ml) |
| GraduatedCylinder | Used to measure volume of a liquid |
| Mass | The amount of matter in an object |
| Gram | Base unit of mass in the metric system (g) |
| Celcius | Unit of temperature (degrees) in metric system. |
| Heat | refers to the total amount of atomic kinetic energy in a material. |
| Temperature | is a measure of the rate of motion of the molecules in a substance |
| Conduction | transfer of heat by collision of atoms in solids. |
| Convection | transfer of heat in fluid because of density differences. |
| Radiation | Transfer of heat by infrared waves that can travel through a vacuum. |
| Density | The amount of mass in a given volume D=M/V |
| Buoyancy | upward force acting on an object in a fluid (gas or liquid) |
| ArchimedesPrinciple | To float an object must displace it’s own mass of the fluid (air or water) it is trying to float in. |
| CharlesLaw | Law that states the volume of a gas increases as it’s temperature increases. |
| Matter | Anything that has mass and takes up space |
| BoylesLaw | The pressure of a gas increases as the volume decreases |
| Water cycle | The way in which water moves between the Earth and the atmosphere. Water on Earth evaporates |
| Seasons | Caused by the tilt of the earth toward sun in summer and away from sun in winter. |
| Atmosphere | Layers of gases surrounding the earth. Weather forms in the lowest levels of the atmosphere. |
| Transpiration | The process by which moisture is released from plants and trees. |
| Accumulation | the process in which water pools in large bodies (like oceans |
| Condensation | the process in which water vapor (a gas) in the air turns into liquid water. Condensing water forms clouds in the sky. Water drops that form on the outside of a glass of icy water are condensed water. |
| Evaporation | the process in which liquid water becomes water vapor (a gas). Water vaporizes from the surfaces of oceans and lakes |
| Precipitation | the process in which water (in the form of rain |
| Troposphere | Lowest layer of atmosphere where weather occurs |
| stratosphere | 2nd layer of atmosphere where ozone layer is and where jets fly |
| mesoshpere | 3rd layer of the atmosphere where medorites burn up |
| thermosphere | 4th layer of atmosphere where ionsphere is and northern lights occur - hottest temperatures |
| exosphere | 5th layer of atmosphere |
| Rotation | the spinning of the Earth on its axis; one rotation takes twenty-four hours |
| Revolution | the orbit of the Earth around the sun; this takes 365 1/4 days to complete one cycle or year |
