# What is refraction and how can we use it?

In this lesson, we will learn what happens when light travels through two transparent materials. We're going to learn what refraction is, how we can use it and we will carry out an investigation to show that refraction is occurring. For this lesson If you would like to take part in the demonstration you will need a piece of plain paper and a transparent glass of water. If you don't have these things then don't worry! You can still complete the lesson and watch the teacher's demonstration.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.What is reflection?

1/5

Q2.What types of material are reflective?

2/5

Q3.Fill in the gap with the correct word: The angle of incidence is always _____ to the angle of reflection

3/5

Q4.With diffuse reflection how does light bounce off a surface?

4/5

Q5.On which surfaces does specular reflection occur?

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.What is reflection?

1/5

Q2.What types of material are reflective?

2/5

Q3.Fill in the gap with the correct word: The angle of incidence is always _____ to the angle of reflection

3/5

Q4.With diffuse reflection how does light bounce off a surface?

4/5

Q5.On which surfaces does specular reflection occur?

5/5

# 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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Science - Reflection end of lesson Quiz

Don't worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is reflection?

1/5

Q2.What is refraction?

2/5

Q3.Which of these is NOT a use of refraction?

3/5

Q4.Is photo A an example of reflection or refraction?

4/5

Q5.Is photo B an example of reflection or refraction?

5/5

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Science - Reflection end of lesson Quiz

Don't worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.What is reflection?

1/5

Q2.What is refraction?

2/5

Q3.Which of these is NOT a use of refraction?

3/5

Q4.Is photo A an example of reflection or refraction?

4/5

Q5.Is photo B an example of reflection or refraction?

5/5

# Lesson summary: What is refraction and how can we use it?

## 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