Mensual science P1A

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Properties and changes of matter

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Jessica porras

Panama

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Mensual science P1A


Mensual science P1AVersion en ligne Properties and changes of matter par Jessica porras 1 What defines a physical property? a Changes the substance into a new material b Only observable at high pressure c Requires a chemical reaction d Observed or measured without changing the composition 2 Is melting point a physical or chemical property? a Physical b None c Both d Chemical 3 What is an intensive property? a Only for liquids b Depends on amount of matter c Changes with mass d Property that does not depend on amount of matter 4 What is distillation used for? a Mix substances evenly b Separate substances based on boiling points c Identify color of a compound d Measure density of a liquid 5 What indicates a chemical change? a Mixing two substances b Formation of a precipitate c Change in color only d Formation of a new substance 6 Which is evidence of a chemical change? a Change in state from solid to liquid b Dissolving sugar in water c Formation of a gas d Change in shape 7 Is cutting paper a physical or chemical change? a Both b Physical change c Chemical change d None 8 What does solubility describe? a Boiling point of a solvent b Rate of reaction c Color of a solution d Ability to dissolve into another substance 9 What does density measure? a Hardness b Mass per given volume c Boiling point d Weight of a substance 10 What tends to happen to viscosity when a liquid is heated? a Becomes undefined b Viscosity increases c Viscosity usually decreases d Stays the same Explicación 1 Physical properties do not alter what the substance is made of. 2 Melting point is observed without changing the substance’s identity. 3 Examples: density, temperature; they stay the same regardless of sample size. 4 Distillation leverages differing boiling points to separate components. 5 A chemical change creates substances with new identities. 6 Gas formation, precipitates, energy changes indicate chemical change. 7 Cutting alters size/shape but not composition. 8 Solubility is about dissolving capability in a given solvent. 9 Density compares how much mass fits in a volume. 10 Heating often makes liquids flow more easily, lowering viscosity.

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Mensual science P1A

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À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Mensual science P1AVersion en ligne

par Jessica porras

What defines a physical property?

Is melting point a physical or chemical property?

What is an intensive property?

What is distillation used for?

What indicates a chemical change?

Which is evidence of a chemical change?

Is cutting paper a physical or chemical change?

What does solubility describe?

What does density measure?

What tends to happen to viscosity when a liquid is heated?

Explicación