5.5 Smell 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

5.5 Smell

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 128-129

Lessongoals

• Remember: I can name the body parts involved in my sense of smell by correctly identifying them.
  
• Understand: I can explain what these body parts do to help me smell by describing their role in detecting scents.
  
• Understand: I can explain how my nose protects me against unhealthy substances in the air by describing its defense mechanisms.

Homework 5.5

Asgmt 29-30

Scan the chapter

Use your book and laptop/notebook

• Go to chapter 5.5 on pages 128-129
• Quickly scan the text for difficult/unknown words
• Make a list of all the words you don't know/understand, add these to your PIF
• Add descriptions and/or synonyms of these words during the lesson

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

What are stimuli and impulses

1. A stimulus is something that sensory organs take in. Impulses are signals in the nerves
2. An impulse is something that sensory organs take in. Stimuli are signals in the nerves
3. They are both something taken in by sensory organs
4. They are both signals in your nerves

What part of the retina is best at seeing colours?

1. Sclera
2. Fovea
3. Choroid
4. Blind spot

Why don't we notice the fact that our retina has a blind spot?

Which of these does the brain use to make your muscles move.

1. Stimulus
2. Impulse

Warmbloedig

Koudbloedig

nasal hairs

Filter out dust particles

Nasal lining

built out of mucus-producing cells and cells with cilia.

The mucus traps smaller dust particles and germs, It also moistens the air

The cilia moves the mucus towards the throat to be swallowed

Sense of smell

Checks the air for strange/dangerous smells

bloodvessels

Warms up the air, helps protect the tissues of the lungs.

Breathing through your nose

Lots of names for parts!

Dont worry about all the names of the different parts!

You only need to recognize the following parts:

• Nasal cavity
• Olfactory cells
• Nerve

Smelling scents

nerve

Olfactory cells

scent particles

Odours/scents/smells are a combination of different chemicals in the air.

Specialized sensory receptors that change the scents (stimuli) into impulses

Sends the impulses from your olfactory cells to the brain.

The brain interprets the impulse and lets you know that you smell something (and in most cases what you are smelling)

Think-Pair-Share

• Think: Work on the assignment on your own.
• When you visit a farmer, you might first smell a stinky scent. But only a minute later you won't notice that smell any more
• Is the smell gone?
• Why don't you smell it any more?

• Pair: Discuss and compare with your neighbour, improve your answer
• Share: Talk about given answers during plenary session.

These words I'll add to my PIF

What you should do: 5.5

• TB: pages  128-129
• Asgmt  29-30 WB pgs. 132-133 

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: 5.5

• TB: pages 128-129
• Asgmt 29-30 WB pgs. 132-133 

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

When people smell a stinky scent, they usually use their hand to close of their nose.

Why can this simple behaviour be important?

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish