Grade 6 Science: Solutions and Solubility

Miss Quinn introduces a natural science lesson for grade six students, focusing on solutions. She explains the concepts of solutes, solvents, and solutions, and discusses the difference between soluble and insoluble substances. The lesson includes an experiment testing the solubility of sugar, sand, flour, and vinegar in water. The session concludes with a recap of key terms and encouragement for students to continue learning.

What is a solution in scientific terms?

• A gas dissolved in a solid

• A liquid dissolved in a gas

• A solid dissolved in a liquid

• A mixture of two solids

In a solution, what is the term for the substance present in a smaller amount?

• Mixture

• Solution

• Solute

• Solvent

Which of the following is true about a solvent?

• It is always visible

• It is the substance that dissolves the solute

• It is present in a smaller amount

• It is always a solid

What happens to salt particles when they dissolve in water?

• They disappear completely

• They break up and mix with water molecules

• They float on the surface

• They sink to the bottom

What does the term 'soluble' mean?

• A substance can dissolve

• A substance cannot dissolve

• A substance is a solid

• A substance is a liquid

Which of the following substances is soluble in water?

• Sugar

• Flour

• Oil

• Sand

What is the result when a solute is insoluble in a solvent?

• The solution becomes clear

• The solute remains visible and does not dissolve

• The solvent changes color

• The solute dissolves completely

During the experiment, which substance was found to be insoluble in water?

• Salt

• Sand

• Vinegar

• Sugar

What is the term for a solution that cannot dissolve any more solute?

• Unsaturated solution

• Diluted solution

• Saturated solution

• Concentrated solution

Which of the following is NOT a factor affecting solubility?

• Nature of the solvent

• Pressure

• Temperature

• Color of the solute