The state of the atmosphere at a specific time and place, including factors such as temperature and pressure, wind speed, and precipitation. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...

A substance that produces inflammation or pain on contact with skin, eyes, the respiratory system or other membranes such as stomach linings. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning...

Fossil fuels are a finite energy source. How long will they last, and why is it so difficult and costly to extract these fuels from beneath the earth and oceans? Earth Science - Earth's Resources - Learning Points. Fossil fuels are...

Or burning, a chemical reaction that requires an initial source of heat, a fuel, and an oxidising agent such as oxygen, and releases energy as heat, and often light. A Twig Science Glossary Film. Key scientific terms defined in just 60...

Light is focused on to an object ... what happens next?
<

br/>

Physical processes -Ligh
t

- Reflection />

Learning Points
Focusing light usi
n

g mirrors generates a lot of heat.


A Twig...

What is it? ... It's a radiator!
<

br/>

Material processes - Changing materials - Expansion
a

nd conduction


A Twig Tidbit Film - Big Reveal. The image zooms out from an extreme close-up to full frame. The...

What is it? ... It's a red-hot poker!
<

br/>

Physical processes - Energy and energy transfer -


Heat transfer


A Twig Tidbit Film - Big Reveal. The image zooms out from an extreme close-up to full frame....

What is it? ... It's rice steaming!
<

br/>

Physical processes - Energy and energy transfer - Heat a
n

d temperature


A Twig Tidbit Film - Big Reveal. The image zooms out from an extreme close-up to full...

Exploring the surface of the Sun.
<

br/>

Our universe - Space adventure - Th
e

Sun and Moon />

Learning Points
The Sun provides the Earth with ene
r

gy in the form of light and heat.
<

br/>...

Find out how the amazing Brunsvigia plant uses the wind to spread its seeds.
<

br/>

Living things - Amazing plants - Pl
a

nt life cycle />

Learning Points
Plants grow from seed, to seedling, to...

Four processes that involve objects changing shape are shown, but which is the odd one out?
<

br/>

Physical processes - Energy and energy transfer - Heat a
n

d temperature


A Twig Tidbit Film - Odd one out....

Did you know that heat and temperature are different things?
<

br/>

Physical processes - Energy and energy transfer - Heat a
n

d temperature />

Learning Points
Tempera
t

ure and heat are different...

True or false ... Geothermal energy is energy found inside the Earth? People and places - Future of energy - Energy sources Learning Points Geothermal energy comes from inside the Earth. A Twig Tidbit Film - True or False? The children...

Exothermic reactions release heat energy. Discover how some reactions release heat slowly and some quickly.
<

br/>

Material processes - Changing materials - More chem
i

cal reactions />

Learning Points...

A Bunsen burner heats up the end of a metal rod ... what happens next?
<

br/>

Physical processes -Energy and energy transfer -


Heat transfer


A Twig Tidbit Film - What happens next? A short section of film...

True or false ... Friction generates heat?
<

br/>

Physical processes -Force and mot
i

on - Friction />

Learning Points r

/> Friction generates heat energy.


A Twig Tidbit Film - True or...

True or false ... Heat is measured in degrees Celsius?
<

br/>

Physical processes -Energy and energy transfer - Heat a
n

d temperature />

Learning Points
Heat is a form o
f

energy and is measured in...

What chemical and physical changes are at play in cake baking.
<

br/>

Material processes - Changing materials - More chem
i

cal reactions />

Learning Points
Chemica
l

changes are usually...

Find out the different ways an asteroid's energy is transformed.
<

br/>

Physical processes - Energy and energy transfer - Energy
t

ransformation />

Learning Points /

> There are many types of...

Find out how diamonds are formed within igneous rock.
<

br/>

Material processes - Classifying mat
e

rials - Rocks />

Learning Points
Diamonds are form
e

d under extreme heat and pressure.
...

Six clips are shown on screen ... can you spot the examples of energy transfer?
<

br/>

Physical processes - Energy and energy transfer - W
h

at is energy? />

Learning Points
Light, heat, electri
c

ity...

Did you know that greenhouse gases in the atmosphere prevent heat from escaping?
<

br/>

People and places - Future of energy - The


energy debate />

Learning Points

C

arbon dioxide is a greenhouse...

Four images associated with burning are shown onscreen, but which is the odd one out and is not needed to start a fire?
<

br/>

Material processes - Changing mater
i

als - Burning />

Learning Points
...

Find out what makes a mixture, and what happens when materials react chemically.
<

br/>

Material processes - Separating mixtures - What


is a mixture? />

Learning Points
A mixture is formed when...