Science

Exit Lesson

Indicators of a Chemical Reaction

This lesson explores what happens in a chemical reaction, ways in which we can identify that a chemical reaction has taken place and how the law of the conservation of mass applies to chemical reactions.

Video

Play 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

Print
PDF
PPTX
Google

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.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Indicators of a chemical reaction

This quiz will assess you on the knowledge gained in this lesson and some of your prior knowledge

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.What does the "conservation of mass" mean?

1/6

Q2.Burning wood is an example of a chemical reaction because... (choose the best answer)

2/6

Q3.In a reaction between 70 g of copper and 35g of oxygen, how much copper oxide would be produced?

3/6

Q4.A chemical reaction between magnesium and oxygen produced 80 g of magnesium oxide. If 48 g of magnesium was used, what mass of oxygen was used?

4/6

Q5.Which of the following are examples of a chemical reaction? Choose 3 answers.

Select three (3) boxes

5/6

Q6.In a reaction between 80 g of sodium hydroxide and 72 g of hydrochloric acid, what mass of sodium chloride is made when 36 g of water is also made?

6/6

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Indicators of a chemical reaction

This quiz will assess you on the knowledge gained in this lesson and some of your prior knowledge

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Q1.What does the "conservation of mass" mean?

1/6

Q2.Burning wood is an example of a chemical reaction because... (choose the best answer)

2/6

Q3.In a reaction between 70 g of copper and 35g of oxygen, how much copper oxide would be produced?

3/6

Q4.A chemical reaction between magnesium and oxygen produced 80 g of magnesium oxide. If 48 g of magnesium was used, what mass of oxygen was used?

4/6

Q5.Which of the following are examples of a chemical reaction? Choose 3 answers.

Select three (3) boxes

5/6

Q6.In a reaction between 80 g of sodium hydroxide and 72 g of hydrochloric acid, what mass of sodium chloride is made when 36 g of water is also made?

6/6

Lesson summary: Indicators of a Chemical Reaction

It looks like you have not completed the quiz.

To share your results with your teacher please complete the quiz.

Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Jog

On the spot:
Chair yoga

Take part in The Big Ask.

The Children's Commissioner for England wants to know what matters to young people.

Share your views and have your voice heard.

The next lesson in Chemical reactions is "Oxidation"

Browse Oak's lessons:

SubjectsSchedule