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Post-Test
| Term | Definition |
|---|---|
| Volume | The amount of space occupied by an object. (measured in mL or cm3) |
| Compound | A pure substance composed of two or more different elements that are chemically bonded. Examples: CO2, NaOH, NaCl |
| Atoms | Tiny particles that make up all matter that cannot be seen with the naked eye. (a single microscopic unit of matter) |
| Matter | Anything that has mass and takes up space |
| Mass | The amount of matter in an object (measured in grams) |
| Element | A pure substance that is composed of a single type of atom. Examples include: Silver (Ag), Iron (Fe), Boron (B) |
| Hypothesis | Problem which the lab activity is designed to solve; Suggested solution to a problem; educated guess |
| Scientific Method | Model or guide used to gather information and solve problems |
| Dependent variable | the factor that changes as a result of changes to the independent variable in an experiment; also called responding variable |
| Independent Variable | the one factor that a scientist changes during an experiment, also called the manipulated variable |
| beaker | wide, cylinder shaped vessel used to hold liquids |
| graduated cylinder | tall, narrow container that has markings so that it can be used to measure the volume of liquids; measures in milliliters |
| triple beam balance | a device used to find the mass of objects; measures in grams |
| microscope | Is an instrument that magnifies very tiny things in order to make them appear larger. |
| Stopwatch | device used to measure time |
| Solid | The particles are tightly packed together and can only vibrate in place |
| Gas | The particles move and spread far apart, filling all the space available |
| Liquid | A state of matter that has a definite volume, but not shape of its own; it will take the shape of a container that it is put in; The particles move around one another freely. |
| Conservation of Mass | When an object or substance undergoes a phase change, the mass of the object or substance stays the same For example, if 5 grams of pure ice melts into liquid water, the liquid will also have a mass of 5 grams. |
| Motion | Change in an object's position over time relative to a reference point |
| Speed | Distance it travels divided by the time it takes to travel that distance The rate at which an object moves |
| gravitational potential energy (GPE) | the increase in potential energy caused when an object is lifted up against the force of gravity. Related to height |
| kinetic energy | energy that an object has because it is moving |
| potential energy | the energy available as a result of an object's position or condition |
| Modeling | When you use a copy of what you are studying to help explain it. |
Created by:
nwysocki
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