Science Midterm Test Prep Year 5

What is a mixture?

• A substance made of one type of atom

• A combination of two or more substances

• A chemical reaction between two elements

• A liquid that changes color

Which of the following is an example of a mixture?

• A box of buttons

• A spoon of sugar

• A bowl of salt

• Fruit salad

What kind of mixture looks the same throughout?

• Heterogeneous

• Homogeneous

• Pure substance

• Suspension

What happens when sugar is added to water?

• It sinks to the bottom

• It dissolves and forms a solution

• It evaporates instantly

• It turns into gas

What is the substance that dissolves in a solution called?

• Solvent

• Solute

• Filtrate

• Mixture

What is the solvent in a saltwater solution?

• Salt

• Water

• Air

• Sugar

A mixture in which particles do not dissolve and settle over time is called a:

• Solution

• Suspension

• Gas

• Pure substance

What is an example of a heterogeneous mixture?

• Juice

• Air

• Cereal with milk

• Saltwater

Which type of mixture allows you to see the different parts?

• Solution

• Homogeneous mixture

• Heterogeneous mixture

• Gas

In a solution, the larger amount of substance is usually the:

• Solute

• Solvent

• Filter

• Gas