The amount of mass in a certain volume. Example: g/mL or g/cm3. The density of a material varies with temperature and pressure.

The ability of a substance (solute) to dissolve in another substance (solvent) to make a uniform solution. Example: sugar (solute) dissolving in water (solvent) to make sugar water.

The state of matter in which a solute is dissolved. Example: sugar (solute) being a solid when dissolved in water (solvent).

the process of a substance going from the solid phase to the gas phase without passing through an intermediate liquid phase

the process of a substance going from the gas phase to the solid phase without passing through an intermediate liquid phase.

the process of a substance going from the liquid phase to the gas phase without passing through an intermediate solid phase.

the process of a substance going from the liquid phase to the solid phase without passing through an intermediate gas phase.

A type of vaporization of a liquid that occurs only on the surface, the liquid goes through a phase change to a gas.

The substance (generally a liquid) you are trying to dissolve something into. Example: sugar (solute) dissolving in water (solvent) to make sugar water.

Exploring the Properties of Matter: 8th Grade Science Quiz

1. What is meant by Boiling Point?

The temperature at which a gas condenses into a liquid state.

The maximum temperature that a substance can reach before evaporating completely.

The temperature at which a liquid substance goes through a phase change into the gas state.

The point where a liquid substance freezes into a solid state.

The boiling point specifically refers to the temperature at which a liquid changes to a gas, not freezing or condensing. It is not the maximum temperature a substance can reach before evaporating completely.

Explanation

The boiling point specifically refers to the temperature at which a liquid changes to a gas, not freezing or condensing. It is not the maximum temperature a substance can reach before evaporating completely.

2. What is density?

The color of a substance

The state of matter

The weight of an object

3. What does the term 'insoluble' refer to?

The property at which one substance changes its chemical composition when mixed with another substance.

The property at which one substance completely dissolves into another substance.

The property at which one substance does not mix well with another substance.

The property at which one substance (solute) will not dissolve into another (solvent). Example: oil and water.

In the context of solubility, 'insoluble' refers to the inability of a substance to dissolve in another substance. This can result in the formation of distinct layers when the substances are mixed.

Explanation

In the context of solubility, 'insoluble' refers to the inability of a substance to dissolve in another substance. This can result in the formation of distinct layers when the substances are mixed.

4. What is the melting point?

The temperature at which a substance changes color.

The temperature at which a substance freezes.

The temperature at which a substance goes from liquid to gas.

The temperature at which a substance goes through the phase change from solid to liquid.

The melting point specifically refers to the temperature at which a substance transitions from a solid to a liquid state.

Explanation

The melting point specifically refers to the temperature at which a substance transitions from a solid to a liquid state.

5. What is solubility?

The process of a substance turning into a gas form.

The ability of a substance to conduct electricity.

The weight of a substance in comparison to its volume.

Solubility specifically refers to the ability of a substance to dissolve in another substance to form a uniform solution.

Explanation

Solubility specifically refers to the ability of a substance to dissolve in another substance to form a uniform solution.

6. What is a solute?

The substance in which another substance is dissolved. Example: water (solvent) in which sugar (solute) is dissolved.

The substance you are trying to dissolve into another. Example: sugar (solute) dissolving in water (solvent) to make sugar water.

The process of separating a solute from a solvent. Example: sugar (solute) being extracted from water (solvent).

A solute is the substance that is being dissolved into another substance (solvent) to form a solution. It is crucial to understand the role of solute and solvent in the process of dissolution.

Explanation

A solute is the substance that is being dissolved into another substance (solvent) to form a solution. It is crucial to understand the role of solute and solvent in the process of dissolution.

7. What is sublimation?

Sublimation specifically refers to the transformation of a substance directly from a solid to a gas, bypassing the liquid phase entirely. It is a unique process that occurs under specific temperature and pressure conditions.

Explanation

Sublimation specifically refers to the transformation of a substance directly from a solid to a gas, bypassing the liquid phase entirely. It is a unique process that occurs under specific temperature and pressure conditions.

8. What is the freezing point?

The point at which a substance goes through a phase change from liquid to solid.

The point at which a substance changes from gas to liquid.

The point at which a substance goes through a phase change from solid to liquid.

The point at which a substance undergoes a chemical reaction.

The freezing point is specifically referring to the transition from liquid to solid state in substances.

Explanation

The freezing point is specifically referring to the transition from liquid to solid state in substances.

9. What is evaporation?

Condensation of a gas into a liquid state.

Boiling of a liquid resulting in the formation of bubbles throughout the liquid.

Sublimation of a solid directly into a gas without passing through the liquid state.

Evaporation is different from boiling, condensation, and sublimation as it specifically refers to the surface process where a liquid turns into a gas.

Explanation

Evaporation is different from boiling, condensation, and sublimation as it specifically refers to the surface process where a liquid turns into a gas.

10. What is a solvent?

The resulting mixture after dissolving a solute in a solvent.

A substance that is dissolved in a solvent.

The process of separating a solute from a solvent.

A solvent is the substance in which a solute is dissolved to form a solution. It is essential in the process of dissolving a solute.

Explanation

A solvent is the substance in which a solute is dissolved to form a solution. It is essential in the process of dissolving a solute.