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Definition
| the ability to be made into thin sheets |
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Definition
| a change in the form of a substance that does not change its identity |
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Definition
| the ability to conduct electric current |
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Definition
| the ratio of the mass of a substance to the volume of the substance |
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Definition
| the ability of a substance to dissolve |
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Definition
| characteristic of matter that can be observed without changing the matter's identity |
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Term
| Equation used to calculate a substance's density |
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Definition
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Term
| An object is placed in water it the density of that object's density is less than the density of water what will happen |
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Definition
| The object will float on top of the water |
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Term
| Examples of physical change include |
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Definition
| the shaping of a gold bar and the melting of a frozen fruit bar |
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Term
| What kind of changes in substances are always physical changes |
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Definition
| changes of state from solid to liquid to gas and back. |
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Term
| Wearing the right safety equipment and taking every precaution to prevent accidents are examples of |
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Definition
| taking responsibility in the laboratory |
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Term
| This causes the most accidents in a lab |
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Definition
| failure to read and follow directions carefully |
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Term
| Emergency medical care for someone who has been hurt or who is sick is called |
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Definition
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Term
| When an accident happens during a science lab you should always |
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Definition
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Term
| Reading and following directions |
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Definition
| checking all instructions before doing an experiment |
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Term
| using proper safety equipment |
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Definition
| wearing heat resistant gloves when picking up a hot object |
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Term
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Definition
| gathering equipment before starting an activity |
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Term
| knowing what a picture of goggles means |
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Definition
| recognizing safety symbols |
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Term
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Definition
| following your teacher's directions when disposing of waste |
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Term
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Definition
| the type of matter and its arrangement in an object |
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Term
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Definition
| the ability of a substance to burn |
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Term
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Definition
| the process of changing into entirely new substances |
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Term
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Definition
| a change in matter that does not change the identity of a substance |
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Term
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Definition
| the ability of a substance to change and form one or more new substances |
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Term
| Chemical properties are harder to observe because |
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Definition
| chemical properties change substance's identity |
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Term
| the best way to tell if a chemical change has taken place is |
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Definition
| if the composition changes |
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Term
| Examples of chemical change include |
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Definition
| soured milk, rusted metal and digested food |
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Term
| When most chemical changes take place |
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Definition
| heat is liberated or absorbed |
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Definition
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Definition
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Definition
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Definition
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| change of state of matter |
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Definition
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Term
| molding a piece of silver |
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Definition
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| melting a bar of aluminum |
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Definition
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| iron rusting to iron oxide |
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Definition
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| wood burning to ash and smoke |
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