Www.ngfl-cymru.org.uk NGfL CYMRU GCaD Breathing and Respiration......the same or different?

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NGfL CYMRU GCaD

Breathing and Respiration...

...the same or different?


NGfL CYMRU GCaDGetting started

Look at the animals in the next 6 slides

Think of ways in which you could put them into two groups with 3 animals in each group


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1

http://www.flickr.com/photos/wwarby/2405292186/


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2

http://www.flickr.com/photos/kro-media/3579999343/


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3

By schizoform

http://www.flickr.com/photos/schizoform/93957289/


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4

By cookipediachef

http://www.flickr.com/photos/cookipedia/3735296947/


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5


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6


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Thinking images!

Show your two groups of animals by clicking on the images to change the colour of the frames. Then, explain in the green box below why you chose these two groups.

Reset

Choose your Groups!

1 2

4 5

3

6

Thinking images!


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How did you get on?

One way of grouping them would be into:

animals which breathe with lungs elephant, frog, red kiteand animals which do not breathe with lungsearthworm, wasp and clown fish (The sea anenome in the photo is an animal which does not use lungs for breathing either!)


NGfL CYMRU GCaDThe Big Idea

Many people get confused between

breathing ..... and ..... respiration

THEY ARE NOT THE SAME THING!


NGfL CYMRU GCaDFor example:

In ‘Artificial Respiration’ (also known as ‘The Kiss of Life’)

you can help save someone’s life by helping them to

breathe, but you can’t do their respiration for them.


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Also in a dusty or dangerous atmosphere you might use a respirator to help you to breathe more easily, but it doesn’t do your respiration for you.


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So to find out what you understand about this topic already here’s a Quick Quiz ... There are only 3 questions!

Q1 In which part(s) of your body does breathing take place?

Q2 In which part(s) of your body does respiration take place?

Q3 Which is a chemical process? Breathing? Respiration? or both?


NGfL CYMRU GCaDQuick Quiz answers:

Q1 Breathing happens in your lungs, and your muscles in your chest help with this. Your lungs are part of the respiratory system.

Q2 Respiration happens in every cell in your body (and in fact every living cell in plants and animals!)

Q3 Respiration is a chemical process.

(Breathing is a physical process)


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Can you remember how all the parts of the respiratory system fit together?

To play a game where you try to connect all the parts of the respiratory system in the correct order ...click here

http://lgfl.skoool.co.uk/content/keystage3/biology/pc/learningSimulations/BRVSC/launch.html


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Structure of the respiratory system

Click here for a tutorial about the structure of the respiratory system. Watch and listen

carefully as it ends with a quick quiz!

Now click here to this drag and drop activity on the Respiratory System

http://lgfl.skoool.co.uk/content/keystage3/biology/pc/learningsteps/TRSLC/launch.html

http://ngfl-cymru.echalk.co.uk/Science/biology/breathing/RespiritorySystemLabelling/RespiratoryLabel.html


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Now it’s your go! Your task is to make a working model of your respiratory system

Here’s a list of what you will need to do in your group...

• Set your success criteria (activity on next screen)

• Build your working model

• Draw and demonstrate your model explaining how it works

• Discuss and record similarities and differences between the model and the real thing

• Reflect on your success criteria


NGfL CYMRU GCaDSetting your success criteria

What would a good model of the respiratory system be like?

Each person in your group thinks of two success criteria and writes them down on separate sheets/cards (don’t let any one else see them yet!)

Place them face down on the table As a group turn over all the cards to read the different success

criteria and discuss them in your group (some may be the same!)

Place them in rank order with the ‘best’ at the top Write down your group’s four ‘best’ success criteria

Now to make your model......


NGfL CYMRU GCaDBuilding your model

You can use: a balloon, a filter funnel and a plastic bottle

• Can you get your model respiratory system to breathe?

• Draw your model and label it to show which parts represent the different parts of the respiratory system


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Your model may look something like thisCan you describe and explain what is happening in the two photos?


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How is your model similar to and different from the real human respiratory system?Fill in the chart to show similarities and differencesModel human respiratory system Real life human respiratory system


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Our Success Criteria were ... How far did we meet the Success Criteria?

Why do we think that? How would we refine our Success Criteria if we made the model again?

Reflecting on Success Criteria

Use this chart to think about your Success Criteria for the model making activity

Our Success Criteria were ... How far did we meet the Success Criteria?

Why do we think that? How would we refine our Success Criteria if we made the model again?


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How does the respiratory system work?

How breathing happens is quite complicated!

It’s all to do with pressure changes in the chest.

Click here for an animation to see and hear how it happens

http://lgfl.skoool.co.uk/content/keystage3/biology/pc/learningsteps/BRVLC/launch.html


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Show solution

In what order does everything happen?

chest volume increasesIntercostal muscles contractPressure inside chest decreaseschest moves up and outAir rushes into lungsDiaphragm muscle contracts1

BREATHING IN






Intercostal muscles relaxAir rushes out of lungsChest volume decreasesDiaphragm muscle relaxesPressure in chest increasesChest moves down and in1

BREATHING OUT






Hide solution Show solutionHide solution

Click on each box to until you sort the correct order of events in Breathing in and Breathing out!


NGfL CYMRU GCaDIn what order does everything happen?

Click on each box to until you sort the correct order of events in Breathing in and Breathing out!

Diaphragm muscle contracts

BREATHING IN

Intercostal muscles contract

Chest moves up and out

Chest volume increases

Pressure inside chest decreases

Air rushes into lungs

Diaphragm muscle relaxes

BREATHING OUT

Intercostal muscles relax

Chest moves down and in

Chest volume decreases

Pressure in chest increases

Air rushes out of lungs


NGfL CYMRU GCaDInformation about respiration

• This is a chemical process• It happens all the time in every cell in all animals and

plants• It happens so cells can get the energy they need • The most active cells do the most respiration

By euthmanBy euthman

Some of the millions of cells in the lining of the human gutgut

Individual human cells Some of the millions of cells in a stem of a plant

By GreenRon

http://www.flickr.com/photos/euthman/1799754415/

http://www.flickr.com/photos/euthman/2802708709/

http://www.flickr.com/photos/greenron/4849215188/


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What chemicals does respiration need?

Basically ... a type of fuel and a gas to “burn” it with

• Carbohydrate (actually glucose, a type of sugar) is the fuel our body uses

• Oxygen is the gas used to “burn” it• They react together inside cells to release the

energy they need


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Which chemicals are formed during respiration?

They are the same chemicals formed when wood or other fuels are burned, so that’s...• Carbon dioxide• Water

The word equation for the reaction is:

oxygen + glucose carbon + water +

dioxideIn the next few slides you will be able to compare the amount of energy released when different foods are burned.

energy


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In this enquiry you will be burning some snack foods to compare how much energy they release.

What could we measure to get an idea of how much energy is in the food?

Enquiry


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In this enquiry you will be able to collect the heat energy from the burning food in a tube of water, and then work out the temperature rise of the water.

The equipment will be set up like this.

You will be able to change the:

• type of food

• mass of food

• volume of water in the tube

Enquiry


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Thinking about the variables in your enquiry...

Independent variable Dependent variable Keep the same for fair test

Enquiry


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Think about how you will record your results

Remember you are investigating which snack

food contains most energy.

There will be three foods to investigate:

Biscuits, Frazzles and Hula Hoops.

You will need to design a chart to record your results!

Make sure you carry out fair tests!

Enquiry


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NGfL CYMRU GCaDFollow up from the Burning Food experiment

The Burning Food experiment gives an idea of what is happening in our cells during respiration.

• What have you learned from your results?• Draw one or more graphs to show your results.

*********• How do our bodies use the energy from respiration?• What could happen if we eat too much snack food and don’t

use up the energy ?

*********

Maybe you will get the chance to do the experiment for real!


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Here’s a quick reminder of the chemical reaction happening in respirationClick on the chemicals and drag them to the correct places

+ +

glucose

carbon dioxide

energy

oxygen

water


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Here’s a quick reminder of the chemical reaction happening in respiration

+ + + energyoxygen water glucose carbon dioxide


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Look at these words and statements carefully.Some are about breathing, some are about respiration and some are about both

Happens 24/7 in our bodies

Uses up glucose Happens in oak trees

Happens in fish

Is a type of burning

Produces carbon dioxide

Happens in every cell

Energy is released

Is a chemical process

Happens because muscles contract and relax

Is a physical process

We have lungs to do this

(Statements also available as word doc. so cards can be made for learners to arrange on paper version of Venn diagram )

In the next activity you will use a Venn diagram to help sort the statements into the different groups


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Check your understanding by dragging the words and statements into the correct parts of the Venn diagram

Is a type of burningHappens because

muscles contract and relax

We have lungs to do this

Happens 24/7i n our body

Energy is releasedIs a chemical processHappens in fishHappens in oak trees

Produces carbon dioxide

Uses up glucoseIs a physical process


NGfL CYMRU GCaDReflection triangle

How will they help you investigate and learn in

new situations?

When might you use these strategies again?

What strategies did you use?

How did they help you with your

learning?

Did you work on

your own or in a group?

Why?

Explain why this was (or was not!) a good idea

Reflection Triangle to help you think about your work - Start at the base of the triangle and add in your ideas


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Thinking more about breathing ...In what situations might we need help with our

breathing?

in sports?

in workplaces?

in hospitals?

Choose one of these situations (or think of another of your own) Research and explain how science has helped us to breathe in these situations

Www.ngfl-cymru.org.uk NGfL CYMRU GCaD Breathing and Respiration......the same or different?

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