See what's happening during different stages of pregnancy, as the baby changes from conception to birth. Biology - Being Human - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use...

Danger elicits an instinctive biological response. Find out which hormones control whether we run away, or stand our ground and fight. Biology - Being Human - Learning Points. At the first sight of danger, messages are sent to the brain...

Marine mammals like dolphins, seals and whales can hold their breath far longer than humans. How do they do this?



Biology - Human Body - Learni

ng Points.

Underwater mammals, such as humpback whales, can...

Find out how humans can overcome biological responses to hold their breath underwater for several minutes.



Biology - Human Body - Learni

ng Points.

When we hold our breaths, our lungs signal the brain to...

Over millions of years, fish species evolved to leave water and survive on land, producing the characteristics shared by all amphibians. Biology - Animal Kingdom - Learning Points. The coelacanth is a lobe-finned fish that evolved 400...

The heart powers everything you do. It pumps without you thinking about it, and beats over a billion times in an average lifetime. But how does it work? Biology - Human Body - Learning Points. The heart is the hardest working muscle in...

Find out more about the range of toxins in cigarettes and the serious damage they can cause to smoker's lungs. Biology - Human Body - Learning Points. Cigarette smoke damages the lungs. The chemicals in cigarettes irritate the lung...

What is cystic fibrosis? Find out what the symptoms are and how it is caused. Biology - Cells And DNA - Learning Points. Cystic fibrosis is a serious progressive, genetic disease that affects the whole body. Cystic fibrosis is caused by...

We test the effects of smoking by drawing first air and then cigarette smoke through apparatus that contains mineral wool and universal indicator. The air has no effect, but the smoke discolours the wool and changes the colour of the...

We dissect and examine a cow\u2019s lungs. Before the dissection, the lungs are inflated to show the changes in volume that occur when mammals breathe. During the dissection the position and function of different parts are examined,...

We depend on oxygen for life. But in fact, oxygen is corrosive: ageing us, damaging cell DNA, and 'rusting' us from the inside. Biology - Human Body - Learning Points. Oxygen is vital in powering every cell and process in the human body....

Discover the scale and effects of the chemical ingredients in cigarettes. What are smokers breathing in to their lungs, and what effects are these chemicals having on them? Biology - Healthy Living - When a cigarette is burned it...

Tiny, hair-like projections from the surface of a cell that wave in unison to cause movement. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

The last and smallest stage of branching airway tubes in the lungs. The bronchioles are microscopic and end in air sacs called alveoli. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...

Four organs found in the human body are shown, but which is the odd one out?
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Life processes - Body systems - The di
g

estive system


A Twig Tidbit Film - Odd one out. The children have to work out...

Did you know you are one big walking talking chemical reaction?
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Material processes - Changing materials - Chem
i

cal reactions />

Learning Points
Chemical react
i

ons happen inside the human...

Find out why we classify whales as mammals, not fish.
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Life processes - Variation and classification


- Vertebrates />

Learning Points
Mammals are on
e

of the five types of vertebrates.
...

Explanation of the circulatory system.
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Life processes - Body systems - The circ
u

latory system />

Learning Points
The heart is a strong muscle tha
t

pumps blood throughout the body.
...

Follow the journey of a human breath.
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Life processes - Body systems - The resp
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ratory system />

Learning Points
As we inhale, air trav
e

ls down the trachea to the lungs.
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Warning: Contains footage of smoking.
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Why do so many people smoke when the risk to their heal
t

h is so high?


Life processes - Humans and o
t

her animals - Dru
g awareness
...

All living things need to excrete, but what do we mean by this?
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Life processes - Living process
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s - Excretion />

Learning Points
Excretion is the p
r

ocess of removing waste products.
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By the end of this learning object, the student will be able to: Summarize the main points on the human respiratory system.13553

This video explores the critical role of oceans in sustaining life on Earth, highlighting their vastness, ecological significance, and the pressing issues of pollution and climate change. It emphasizes the importance of marine...

Venture into the fascinating 'factory' of the human body, where water, gases, and electricity play crucial roles in our daily functions. From hydrating cells and transporting nutrients to facilitating breath and powering the heart,...