Pure and impure formulations

This lesson will explain the difference between pure and impure substances, and define a formulation.

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

Purity and Formulations

This quiz will test your knowledge from this lesson and previous lessons

Question 1

Question 2

Question 3

Question 4

Q1.True or false: A formulation is a list of ingredients

1/4

Q2.Which three of these are true for a pure substance? Tick all that apply.

Select three (3) boxes

2/4

Q3.Which four of these are examples of formulations? Tick all that apply.

Select four (4) boxes

3/4

Q4.Why do we put salt on the roads?

4/4

Quiz:

Purity and Formulations

This quiz will test your knowledge from this lesson and previous lessons

Question 1

Question 2

Question 3

Question 4

Q1.True or false: A formulation is a list of ingredients

1/4

Q2.Which three of these are true for a pure substance? Tick all that apply.

Select three (3) boxes

2/4

Q3.Which four of these are examples of formulations? Tick all that apply.

Select four (4) boxes

3/4

Q4.Why do we put salt on the roads?

4/4

Lesson summary: Pure and impure formulations

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