What do particles in pure substances and mixtures look like?

In this lesson, we are going to look at the differences in the particles of pure and impure substances. We will use water and gold as examples. You will need a pencil, a piece of paper and a ruler.

What do particles in pure substances and mixtures look like?

In this lesson, we are going to look at the differences in the particles of pure and impure substances. We will use water and gold as examples. You will need a pencil, a piece of paper and a ruler.

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Lesson details

Key learning points

  1. Define pure, impure and mixture
  2. Draw particle diagrams to represent pure and impure materials
  3. Give examples of useful mixtures

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5 Questions

Q1.
Does diagram A represent the particles in a solid, liquid or gas?
An image in a quiz
Correct answer: Gas
Liquid
Solid
Q2.
Does diagram B represent the particles in a solid, liquid or gas?
An image in a quiz
Gas
Liquid
Correct answer: Solid
Q3.
Does diagram C represent the particles in a solid, liquid or gas?
An image in a quiz
Gas
Correct answer: Liquid
Solid
Q4.
Which state of matter takes the shape of the bottom of a container?
Gas
Correct answer: Liquid
Solid
Q5.
Which state of matter can be compressed?
Correct answer: Gas
Liquid
Solid

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 the diagram above showing a pure or impure substance?
An image in a quiz
Correct answer: Impure
Pure
Q3.
What kind of substance is the diagram above showing?
An image in a quiz
Impure gas
Impure liquid
Impure solid
Pure gas
Pure liquid
Correct answer: Pure solid
Q4.
What type of substance is the diagram above showing?
An image in a quiz
Correct answer: Impure gas
Impure liquid
Impure solid
Pure gas
Pure liquid
Pure solid
Q5.
What type of substance is diagram D showing?
An image in a quiz
Impure gas
Correct answer: Impure liquid
Impure solid
Pure gas
Pure liquid
Pure solid

Lesson appears in

UnitScience / Particles in physical and chemical changes

Science