5.4 Hearing

Chapter 5 Sense it

- Take off your coats and hats

- Take out your laptop and join the lesson-up

- Code is on the board to the right

This lesson

15 min	Revision previous learning goals
2 min	Learning goals for 5.4
30 min	New info + excercises
3 min	Review learning goals

Annette picks up her pen.
She feels her pen because impulses are produced in her tactile senses

1. How does your body notice changes around or inside you?

1. true
2. false

Put in the correct order

1. How does your body notice changes around or inside you?

1.

2.

3.

4.

An impulse is conducted to the brain

a low temperature reaches the sensory cells

The girl feels that the water is cold.

Cold senses convert stimuli into impulses

1. How does your body notice changes around or inside you?

Senses or response

Stimuli

look for food

ear

throwing up

tongue

catch a ball

listening music

smell parfum

see fire works

Feeling thirsty

What is the difference between
a sense and a sense organ?

1. What are your main sense organs?

2. What are your five main senses?

When light enters the eye, it passes through various regions until it reaches the optic nerve. Which of the following gives the correct order for light passing through the eye? 

lens

retina

cornea

pupil

What do we use to see colours

1. Rods
2. Cones

5.4 hearing

1. What are the parts of your ear + function?

2. How does your ear help you keep your balance?

Let's start with a test - video in the next slide

Raise your hand when you stop hearing the high pitch sound

At the end of the lesson, try to explain why you stop hearing the pitch when you get older

The outer ear

Pinna - Funnel-shaped part of the outer ear made of skin and cartilage.

Eardrum -  The membrane of the middle ear, which vibrates in response to sound waves.

1. What are the parts of your ear + function?

The ear is divided into three parts: the outer ear, the middle ear and the inner ear. Hearing starts at the outer ear. When a sound is made, the sound waves are collected by the pinna and funneled down the ear canal where they hit the eardrum. This makes the eardrum vibrate just like the skin on a drum vibrates when you tap it.

The middle ear

Eardrum --> Hammer --> Anvil --> stirrup

1. What are the parts of your ear + function?

The ear is divided into three parts: the outer ear, the middle ear and the inner ear. Hearing starts at the outer ear. When a sound is made, the sound waves are collected by the pinna and funneled down the ear canal where they hit the eardrum. This makes the eardrum vibrate just like the skin on a drum vibrates when you tap it.

The inner ear

Cochlea - Shell-shaped hollow tube of the inner ear where sensory receptors convert vibrations into nerve impulses.

Auditory nerve - The nerve of the ear that transmits nerve impulses to the brain.

1. What are the parts of your ear + function?

The ear is divided into three parts: the outer ear, the middle ear and the inner ear. Hearing starts at the outer ear. When a sound is made, the sound waves are collected by the pinna and funneled down the ear canal where they hit the eardrum. This makes the eardrum vibrate just like the skin on a drum vibrates when you tap it.

When a sound is made,___1___  are collected by the___2___  and directed down the _____3____  .They hit the_____4_____  , which starts to ___5___  . A small bone called the ___6____  picks up the vibration and transfers it to two other small bones called the ___7___  and the ___8___  . The vibration arrives at a coiled tube called the ___9___  , where it is turned into a ___10___  . The ___11___  then carries the message to the brain.

1. What are the parts of your ear + function?

ear canal

Eardrum

auditory nerve

sound waves

pinna

nerve impulse

vibrate

cochlea

stirrup

hammer

Anvil

Which of the following
parts is located in the inner ear?

1. What are the parts of your ear + function?

1. What are the parts of your ear + function?

1. What are the parts of your ear + function?

1. What are the parts of your ear + function?

1. Hammer
2. Cochlea
3. Eardrum
4. Anvil

Think back to the high pitch video. Which part of the ear is probably damaged in older people?
Give the part + explanation

Back to

the inner ear

 Semicircular canals - Parts of the inner ear that detect the direction of movement and acceleration and help maintain your balance.

Filled with fluid

2. How does your ear help you keep your balance?

2. How does your ear help you keep your balance?

1. What are the parts of your ear + function?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎

2. How does your ear help you keep your balance?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎