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| Find out something you are wondering about. Why? how? |
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| Make a prediction based on what you know. An educated gues |
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| Items you need. thermometer, rulers, paper, etc. Get items around |
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| make and take measurements. Observe and record information. use math and writing. |
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| analyze and compare information. Identify the test and control groups. Record findings. |
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explain why you found what you did.
IS MY EXPERIMENT REPEATABLE? |
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Have a definite shape and definite volume
*The particles that make up a solid are very closely packed together.
*Particles can not move very far out of their place nor can they flow over or around each other.
*Particles can only vibrate in place; little other motion occurs so the solid keeps its definite shape.
*Particles are arranged in a regular repeating patterns called crystal |
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| *When the particles of a solid are not arranged in a regular, repeating pattern they do not keep their shape permanently. Particles can slowly flow around one another and can lose their shape under certain conditions |
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Particles are held tightly together but not as tightly as in a solid.
*Particles are free to move so a liquid has no definite shape it takes the shape of its container. Has a definite volume. |
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| the resistance of a liquid to flow. |
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No definite shape or volume. *Particles will fill all of the available space in a container, regardless of size or shape.
*Particles tend to spread far apart from each other but can be tightly packed together too. |
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| With a fixed amount of gas, when the Pressure is increased, the volume decreases. When the pressure is decreased, the volume increases |
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| With a fixed amount of gas, when the temperature is increased, the volume increases. When the temperature is decreased, the volume decreases. |
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Very rare on Earth but one of the most common phases of matter in the universe.
*Extremely high in energy and dangerous to living things. |
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| Solid to liquid- This occurs when a substance absorbs heat energy. Temp at which substance melts = melting point |
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| Liquid to Solid- occurs when a substance loses heat energy. Temp at which a substance freezes = freezing point. |
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| Liquid to Gas- Particles in a liquid absorb enough energy to “escape” from the liquid phase. |
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| If vaporization occurs on the surface of the liquid it is called |
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| If enough heat energy is supplied, particles inside the liquid can change to gas then travel to the surface.The temperature at which a liquid boils is called the boiling point. |
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Gas to Liquid-
Substance loses heat energy, particles slow down. |
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| Solid to Gas- is when a solid’s surface particles escape directly into the gas phase without going through the liquid phases: ex: dry ice does not exist as a liquid under ordinary pressure |
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| describe how a substance changes into other new substances |
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| the change a substance undergoes when turning into another substance. Chemical changes are closely related to Chemical properties but are not the same. A chemical property describes a ubstances ability to change into a different substance. A chemical change is the process by which the substance change. |
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| another name for a chemical change. Often involves chemically combing different substances. |
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