States of Matter
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| 4 states of matter | solids, liquids, gases, plasma
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| Solids have what kind of structure | definite
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| In solids, atoms are unable to move how? | freely
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| Gas particles spread out as _______ as possible. | far
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| Do liquids have a higher amount of energy than solids? | yes
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| What are examples of the three states of water | liquid - gas solid - ice gas - vapor
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| What rises as energy is added to water | temperature
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| Plasma makes up most of what? | Solar System
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| What does plasma carry? | electric currents
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| Which state of matter has the most energy? | plasma
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| Who invented the first temperature scale? | Daniel Fahrenheit
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| On the Fahrenheit scale, water boils at what temperature? | 212 degrees
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| On the Fahrenheit scale, water freezes at what temperature? | 32 degrees
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| On the Celcius scale, water boils at what temperature? | 100 degrees
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| On the Celcius scale, water freezes at what temperature? | 0 degrees
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| Water molecules are both ___________ and ___________? | positive and negative
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| Water is also known as what? | universal solvent
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| What happens to water when it freezes? | expands
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| Most matter will do one of two things when it freezes | expand or contract
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| If a substance has a large concentration of hydrogen ions it is a what? | acid
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| What is the PH range for acids? | below 7
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| What is the neutral point of the PH scale? | 7
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| What is the PH range for bases? | above 7
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| What is an example of very strong acids? | battery acid
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| What is an example of a weak acid? | milk
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| What prevents pH from changing much, if at all? | buffers
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| What is an example of a buffer? | saliva
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| What is an example of a strong base? | drain cleaners
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| What is an example of a weak base? | baking soda
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| What are two types of heat engines? | internal and external combustion engines
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| In external combustion engines, fuel is burned where? | outside the cylinder
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| In internal combustion engine, fuel is burned where? | inside the cylinder
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| What is an example of an external combustion engine? | steam engine
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| What is an example of an internal combustion engine | diesel or gas engines
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| Which state of matter has more energy than the gas state? | plasma
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| What is unique about an absolute scale? | it has no negative values
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| when fluids flow slowly, they are said to have what type of viscosity? | high viscosity
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| The concentration of which atom determines pH on the pH scale? | hydrogen atom
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