What happens to particles during dissolving?

In this lesson, we will learn what happens to particles during dissolving. We will investigate what happens when we mix water with salt, sugar and sand. For this lesson you will need a pencil and a piece of paper. If you would like to take part in the practical you will also need a glass of water and some sugar and salt. If you do not have these things then you can still take part in the lesson by watching the teacher's demonstration.

What happens to particles during dissolving?

In this lesson, we will learn what happens to particles during dissolving. We will investigate what happens when we mix water with salt, sugar and sand. For this lesson you will need a pencil and a piece of paper. If you would like to take part in the practical you will also need a glass of water and some sugar and salt. If you do not have these things then you can still take part in the lesson by watching the teacher's demonstration.

Lesson details

Key learning points

  1. Define solvent, solute and solution
  2. Draw particle diagrams to represent a solution
  3. Describe what happens to particles during dissolving

Licence

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5 Questions

Q1.
What is meant by a pure substance?
A substance with a mix of different particles
Correct answer: A substance with only one type of particle
Q2.
Is diagram A showing a pure or impure substance?
Correct answer: Impure
Pure
Q3.
What kind of substance is diagram B showing?
Impure gas
Impure liquid
Impure solid
Pure gas
Pure liquid
Correct answer: Pure solid
Q4.
What type of substance is diagram C showing?
Correct answer: Impure gas
Impure liquid
Impure solid
Pure gas
Pure liquid
Pure solid
Q5.
What type of substance is diagram D showing?
Impure gas
Correct answer: Impure liquid
Impure solid
Pure gas
Pure liquid
Pure solid

5 Questions

Q1.
Is sand soluble or insoluble?
Correct answer: Insoluble
Soluble
Q2.
Is salt soluble or insoluble?
Insoluble
Correct answer: Soluble
Q3.
What is A in the diagram above?
Correct answer: Solute
Solution
Solvent
Q4.
What is B in the diagram above?
Solute
Solution
Correct answer: Solvent
Q5.
What is C in diagram the diagram above?
Solute
Correct answer: Solution
Solvent

Lesson appears in

UnitScience / Particles in physical and chemical changes

Science