Diarrhea happens when there is an imbalance in water secretion and absorption within the body. This excess water causes the stool to pass through quicker than normal. Diarrhea feels like the food takes a “fast pass” out of the gut....

Why do we dance? We dance to music because of neural connections in our brain. These connections link the part that perceives music, the auditory cortex to the regions that help us move, the motor regions. We might have started creating...

Ants touch each other head-on to identify and cooperate with other ants from their colonies. When two ants collide, they smell each other thoroughly to make sure that they belong to the same colony. Ants are surprisingly good at...

Explore the fascinating role of the orchestra conductor, from ancient traditions to modern maestros like Gustavo Dudamel, who inspire orchestras to bring masterpieces to life.<br/>

This brief video introduces the viewer to the different types of caves on our planet.

The mechanical and chemical breakdown of food in the body into simpler chemicals that can be absorbed and used in its metabolism.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds...

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...

Biological evolution has allowed some animals to fly. Find out exactly how their wings work to achieve this. Physics - Forces - Learning Points. Flight occurs when the upward force is greater than the downward. Flight is explained by...

Discover the chemical processes occurring deep within the Earth that create beautiful crystal structures in caves. Chemistry - Reactions - Learning Points. Caves are a result of rainwater slowly carving away rock. Carbonic acid forms in...

The world has already faced a major global climate challenge: the hole in the ozone layer, discovered in 1985. Find out what ozone is, why it's important, and how the ozone hole is being repaired. Earth Science - Human Impacts - Learning...

We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...

We use a Hero's engine model to show how equal and opposite forces can cause propulsion. Two holes are pierced in a metal bottle and some water is added. This is suspended above a Bunsen burner, and as the water boils and leaves the...

Aeroplanes use the same forces and physical principles as birds to fly. Discover how man has copied nature to achieve flight. Physics - Forces - Learning Points. Flight occurs when the upward force (lift) is greater than the downward....

The wearing away of rock and the removal of weathered rock, soil, and other solid materials away from source. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...

As opposed to voluntary, an involuntary action is one that happens without any conscious control - for example a reflex response, or anything that someone does in their sleep. A Twig Science Glossary Film. Key scientific terms defined in...

What is it? ... It's a tug of war! <br<b<br/>r/>/>


Physical processes - Force <br<b<br/>r/>/>and motion - Action and reaction


A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.

True or false ... Unbalanced forces cause an object to change speed?
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Physical processes -Force and motion - Actio
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Learning Points
Unbalanced forc
e

s cause an object to change...

Six different clips are shown, five of them showing examples of balanced forces ... can you spot which ones?
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Physical processes - Force and motion - Actio
n

and reaction


A Twig Tidbit Film - Spot...

Opposing forces are at work all the time, even when you aren't moving!
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Physical processes -Force and motion - Actio
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and reaction />

Learning Points
When opposing forces are balan
c

ed,...

Find out how rockets shoot into space at amazing speeds.
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Physical processes -Force and motion - Actio
n

and reaction />

Learning Points
Newton's third law states that every for
c

e has an equal...

Plusquamperfekt (Past Perfekt Tense) - B1 German Grammar Lesson for Beginners



Ever wondered how to perfectly narrate events that happened before other past events? This German grammar lesson is your...

By the end of this learning object, the learner should be able to: Classify waves according to their ability to propagate and transfer energy in space.9871

The best storytellers speak in an active voice rather than a passive voice. Get some real-time practice and examples that show you how to turn passive sentences into active sentences and watch your stories transport your listeners.

How to lead by example in 4 important ways.