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1st TEST SC CARDS
1st TEST CARDS
| Question | Answer |
|---|---|
| Describe SOLIDS | SOME MOVEMENT back and fourth that ATTRACTS or REPELS electrical forces. TIGHTLY PACKED very organized pattern, ORDERLY LATTICE NETWORK. SMALL AMOUNT of empty SPACE between atoms. |
| Describe LIQUIDS | HEAT from temperature above freezing causes ATOMS TO MOVE FASTER and NO LONGER HELD by attractive forces. NO ORDER, no organization But still TIGHTLY PACKED Still SMALL AMOUNT empty SPACE between atoms |
| Describe GASES | FASTEST MOVING Atoms SPREAD OUT spread out- bouncing all over NO ORDER - total CHAOS-. LOTS OF empty SPACE between atoms.. |
| What needs to be added or removed to change states? | HEAT |
| What are the common names when going from one state to another? | Freezing, Melting, Evaporation |
| What are substances? | Matter that is one material that is the SAME ALL THE WAY THROUGH. Matter that has the SAME COMPOSITION and PROPERTIES THROUGHOUT |
| Examples of substances? | Atoms (Aluminum, Gold) Molecules (Water, Chalk) |
| What are mixtures? | Matter that is composed of 2 or MORE SUBSTANCES in NO SET RATIO-- |
| Examples of mixtures? | Tap Water (water, chlorine, Florine) Stream Water (water, salt, algae, D.O, Nitrogen and phosphorus) Air (oxygen, nitrogen, oil, pollen) |
| Examples of PROPERTIES | Color, Hardness, Solubility, Melting Point, Density |
| Examples of non-properties? | Mass, Volume, Shape, Texture |
| Define mass | It is NOT A PROPERTY, but is one way to describe matter. It is the AMOUNT of matter in a particular sample of a SUBSTANCE. It can change without changing the properties of that SUBSTANCE. |
| What 2 NON-PROPERTIES are necessary to CALCULATE the PROPERTY of DENSITY? | the PROPERTY of DENSITY needs the non-properties of MASS and VOLUME to describe it, because its formula is Mass/Volume or m/v |
| What instruments do you use to measure mass? | Scale or measuring Balance |
| What Units are used to describe mass? | grams (g), mg, Kg |
| Define volume | The AMOUNT of SPACE something TAKES UP or OCCUPIES. Its SIZE. |
| What instruments do you use to measure volume? | 1) RULER: l⋅w⋅h in cm³ (length x width x height) 2) DISPLACEMENT VESSEL: putting IRREGULAR objects in liquids to measure how much liquid is displaced. 3) LIQUIDS: using graduated cylinders to measure liquids put in them. |
| What Units are used to describe volume? | Volume is measured in TWO UNITS of VOLUME: cm³ = mL |
Created by:
familystudy22
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