Boiling point of water |
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100 degrees Celsius |
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Density |
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the amount of mass (or matter) compacted into a certain volume |
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Solid |
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has a specific volume and shape and the particles are held tightly together |
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Freezing point of Water |
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0 degrees Celsius |
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Liquid |
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has specific volume but not a specific shape |
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Thermometer |
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instrument for measuring temperature |
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Gas |
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has no specific volume or shape and the particles move freely |
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Balance Scale |
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the instrument for measuring mass |
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Mixture |
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a combination of two or more substances |
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Magnet |
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attracts iron or stel and can be used to separate a mixture of sand and iron filings |
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Solution |
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a mixture of two or more substances that are evenly distributed |
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Insulator |
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any material that stops or slows the movement of electricity or heat |
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Dissolve |
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to completely mix together |
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Conductor |
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any material that easily allows heat or electricity to move through it |
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Physical Property |
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a characteristic that can be measured or observed without changing the substance |
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Filter |
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a tool used to separate smaller particles from larger particles, such as separating sand and water |
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Mass |
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the amount of matter in an object measured in grams |
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Chemical Change |
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when two substances join and a new substance is created (ex. mixing baking soda with water) |
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Physical Change |
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the substance changes size or shape, but is still the same object |
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Buoyancy |
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the ability or tendency to float in water or air or some other fluid |
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Signs of Physical Change |
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Change in size, shape, or state of matter (liquid to solid, solid to liquid, liquid to gas) |
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Signs of Chemical Change |
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bubbles, heat given off, light given off, new substance formed, color change |
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