Grade 5 Chemistry Quiz

What is the difference between an element and a compound?

• An element is a substance made up of two or more different types of atoms chemically bonded together, while a compound is a pure substance made up of only one type of atom

• An element is a pure substance made up of only one type of atom, while a compound is a substance made up of two or more different types of atoms chemically bonded together.

• An element is a mixture of different types of atoms, while a compound is a pure substance made up of only one type of atom

• An element and a compound are the same thing

Give an example of an element and a compound.

• Oxygen and water (H2O)

• Nitrogen and sugar (C12H22O11)

• Carbon and salt (NaCl)

• Hydrogen and air (O2)

Explain the concept of a mixture of matter.

• A combination of two or more substances that are not chemically combined

• A mixture of only one substance

• A combination of two or more substances that are chemically combined

• A mixture of solid and liquid substances

Provide an example of a mixture of matter.

• A mixture of sand and salt

• A mixture of air and light

• A mixture of iron and gold

• A mixture of water and fire

What are the different separation methods used to separate mixtures?

• Boiling, burning, heating, and cooling

• Mixing, blending, stirring, and combining

• Filtration, distillation, evaporation, and chromatography

• Freezing, melting, condensing, and solidifying

Explain the process of filtration as a separation method.

• Filtration is a method of separating solid particles from a liquid by heating the mixture

• Filtration is a method of separating liquid particles from a solid by passing the mixture through a non-porous material

• Filtration is a method of separating solid particles from a liquid by passing the mixture through a porous material, such as filter paper or a filter funnel.

• Filtration is a method of separating gas particles from a liquid by passing the mixture through a solid material

What is distillation and how is it used to separate mixtures?

• Distillation is a process used to evaporate mixtures based on the differences in boiling points of the components.

• Distillation is a process used to separate mixtures based on the differences in boiling points of the components.

• Distillation is a process used to combine mixtures based on the differences in boiling points of the components.

• Distillation is a process used to filter mixtures based on the differences in boiling points of the components.

Describe the process of evaporation as a separation method.

• Liquid is heated to produce vapor, leaving behind the solid particles or impurities.

• Gas is compressed to produce liquid, leaving behind the solid particles or impurities.

• Solid is heated to produce liquid, leaving behind the vapor or impurities.

• Liquid is cooled to produce vapor, leaving behind the solid particles or impurities.

How does chromatography work as a separation method?

• By heating the mixture to evaporate the components

• Based on affinities for stationary and mobile phases

• By using gravitational force to separate substances

• By using a magnetic field to attract different substances

Explain the concept of a physical change in matter.

• A physical change in matter is a change in the substance's ability to conduct electricity.

• A physical change in matter is a change in the form or appearance of a substance, without changing its chemical composition.

• A physical change in matter is a change in the state of matter from solid to liquid.

• A physical change in matter is a change in the substance's chemical composition.