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Physical Properties
Unit 1 Vocabulary
| Term | Definition |
|---|---|
| matter | Anything that has mass and takes up space (has volume). |
| physical property | Characteristics of objects that can be observed, measured, or changed without changing the matter itself. Scientists use these to classify matter into groups. |
| mixture | A combination of two or more substance that can be easily separated. |
| solution | A type of mixture in which the particles of one substance are dissolved in another substance. |
| conductor | A substance or object that allows energy to flow through it easily is a _____. We use these materials in electrical circuits and objects that need to allow heat to move. |
| insulator | An _____ is a substance that does not let heat or electricity flow through it. We use these materials to protect from heat and electricity. An example is the plastic coating on electrical cords. |
| solubility | _____ is the ability of a substance to dissolve in water or another liquid , such as sugar dissolving in water. |
| dissolving | _____ happens when a substance breaks down into small pieces and spreads evenly throughout a liquid. |
| mass | The amount of matter in an object is the _____ of the object. |
| relative density | _____ _____ of an object determines whether the object floats or sinks in water. We observe this by placing the object in water to see if it sinks or floats. |
| magnetism | _____ is the force of attraction that causes a magnetic material to move. |
| thermal energy | The energy related to the temperature of an object or substance is _____ _____. |
| apron | An ____________is used to protect clothes when using substances that could splash or spill. |
| goggles | ____________ are used to protect your eyes during an experiment. |
| gloves | To protect your hands from chemicals or heat, you should use __________. |
| graduated cylinder | Volume is measured using a ________ _______. The unit of volume is milliliters. |
| triple beam balance | Mass is measured using a _____ _____ _____ and the unit is grams. |
| pan balance | A _____ _____ and a triple beam balance are both used to measure the mass of objects. |
| hot plate | A _____ _____ is an electrical appliance used in science to heat substances. |
| stopwatch | If you are performing an experiment and need to have an exact time, you would need a _____. |
| beakers | _____ are tools used to mix and pour liquids. Their measurement is not as precise as a graduated cylinder. |
| electrical energy | Energy that is absorbed or delivered by an electric circuit is _____ _____. |
| gas | Matter in a _____ state fills its container because the molecules move rapidly and freely. |
| liquid | Matter in a _____ state has the ability to flow that makes it take the shape of its container, filling the bottom of the container first. |
| table | A data _____ is another word for a chart where we record information during an experiment. |
| solid, liquid, gas | The 3 states of matter we study are _____, _____ and _____. |
| states of matter | _____ _____ _____ are the forms matter such as solid, liquid, or gas. Another name used for this is phases of matter. |
| solid | Matter in a _____ state has a definite shape and size because the molecules of the substance are tightly packed. |
| temperature | _____ is the measure of how hot or how cold a substance is. |
| increase | To _____ means to get more or to go higher. |
| decrease | To _____ means to have less or to go down. |