Solutions

This lesson looks at the structure of word equations, how chemical reactions happen and why mass always has to be conserved.

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:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which state of matter would be described as having a fixed shape, high density and is not compressible?

1/6

Q2.What causes pressure in a contained gas?

2/6

Q3.What effect does INCREASING volume have on the pressure exerted by a gas?

3/6

Q4.What effect does INCREASING temperature have on the pressure exerted by a gas?

4/6

Q5.What effect does INCREASING altitude have on gas pressure?

5/6

Q6.Which of the following is NOT a change of state?

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:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.Which state of matter would be described as having a fixed shape, high density and is not compressible?

1/6

Q2.What causes pressure in a contained gas?

2/6

Q3.What effect does INCREASING volume have on the pressure exerted by a gas?

3/6

Q4.What effect does INCREASING temperature have on the pressure exerted by a gas?

4/6

Q5.What effect does INCREASING altitude have on gas pressure?

5/6

Q6.Which of the following is NOT a change of state?

6/6

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.

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:

Solutions

This quiz will test your knowledge from this lesson and your prior learning.

Q1.What is conservation of mass?

1/5

Q2.Which of the following could be done to increase the pressure in a gas?

2/5

Q3.Why does it sometimes seem as if mass has not been conserved in a chemical reaction?

3/5

Q4.Identify the products in this chemical reaction: Acid + Alkali --> Salt + Water

4/5

Q5.In a chemical reaction, what would the mass of the products be if one of the reactants weighed 10g and the other weighed 25g?

5/5

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:

Solutions

This quiz will test your knowledge from this lesson and your prior learning.

Q1.What is conservation of mass?

1/5

Q2.Which of the following could be done to increase the pressure in a gas?

2/5

Q3.Why does it sometimes seem as if mass has not been conserved in a chemical reaction?

3/5

Q4.Identify the products in this chemical reaction: Acid + Alkali --> Salt + Water

4/5

Q5.In a chemical reaction, what would the mass of the products be if one of the reactants weighed 10g and the other weighed 25g?

5/5

Lesson summary: Solutions

It looks like you have not completed one of the quizzes.

To share your results with your teacher please complete one of the quizzes.

Time to move!

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

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga

The next lesson in:
Particles
is:
Review 1

Browse Oak's lessons: