Curated Video
Solar Power - Harnessing Sun’s Energy
The Sun has the potential to meet all our energy needs, if only we could harness it efficiently. Why is it so difficult to efficiently convert and store this energy? Earth Science - Earth's Resources - Learning Points. The Sun provides...
Curated Video
Measuring Food Energy
We investigate the amount of energy stored in maize snacks and peanuts by burning them. The food is placed under an aluminium beaker of water before being set alight and the temperature change of the water is recorded. We can compare the...
Curated Video
Ingenhousz's Heat Conductors
We use a metal box holding rods of different materials to test their ability to conduct heat. The box is filled with boiling water and a paperclip is attached to the end of each rod using petroleum jelly. As the heat moves through the...
Curated Video
Forensics: Tools of CSI
A criminal has committed burglary and escaped the scene without leaving a fingerprint or trace of DNA. How can forensic scientists still solve the crime? Chemistry - Atoms And Bonding - Learning Points. There are many forensic techniques...
Curated Video
Building a home
Find out why builders have to think very carefully about which materials to use when building a house. The world around us - Exploring materials - Building a home Learning Points All materials can be described in terms of their...
Curated Video
Recycling
Meet the musicians who make music with rubbish! Our universe - Sharing our Earth - Keeping Earth tidy Learning Points Humans have an effect on the world around them. People can make choices to reduce their impact on the natural world,...
Curated Video
Changing pitch – Did you know?
Did you know that a person singing at the right frequency at a high volume can cause a glass to shatter? Physical processes - Sound - Changing pitch Learning Points At certain frequencies sound waves can shatter glass. A Twig Tidbit Film...
Curated Video
Characteristics of water – True or false
True or false ... Drinking a glass of seawater will make you ill? Material processes - Solids, liquids and gases - Characteristics of water Learning Points Drinking sea water can cause dehydration. A Twig Tidbit Film - True or False? The...
Curated Video
Friction – Odd one out
Four different surfaces are shown, but which is the odd one out? Physical processes - Force and motion - Friction A Twig Tidbit Film - Odd one out. The children have to work out which of four images is the odd one out.
Curated Video
Expansion and conduction – Odd one out
Four substances are shown on screen, but which is the odd one out and is not a good conductor of heat? Material processes - Changing materials - Expansion and conduction Learning Points Metals are good thermal conductors due to their...
Curated Video
What is glass made of?
We use glass every day, but how is is made? Material processes - Changing materials - More chemical reactions Learning Points An endothermic reaction absorbs heat energy. Chemical reactions can change the properties of materials. A Twig...
Curated Video
What is a reflection?
Understand that reflection is light bouncing off a surface. Physical processes - Light - Reflection Learning Points Reflection occurs when light bounces off objects. Smooth surfaces reflect light in one direction. Rough surfaces are not...
Curated Video
Thermos flask
How do these flasks work to keep drinks at a constant temperature? Material processes - Changing materials - Insulation Learning Points Thermal insulators do not allow heat energy to flow easily through them. Vacuums are insulators...
Curated Video
Condensation and freezing
Why do water drops form on cold windows and why does water freeze? Material processes - Solids, liquids and gases - Changes of state Learning Points Condensation is the change of state from gas to liquid. Freezing is the change of state...
Curated Video
Spot the shadows
Find out how shadows are formed and what types of materials produce shadows. Physical processes - Light - Shadows Learning Points Shadows are created when an object blocks the path of light. Opaque objects do not let any light through....
Curated Video
Properties of materials
Discover how materials are grouped by their properties and how this is useful in everyday life. Material processes - Classifying materials - Properties of materials Learning Points Materials can be grouped by properties. Properties are...
Curated Video
Cat's eyes
Discover how British inventor Percy Shaw came up with the idea of Cat's Eyes. Physical processes -Light - Reflection Learning Points Shiny, smooth surfaces bounce light back and are good reflectors. Cat's eyes are excellent reflectors. A...
Great Big Story
Rediscovering the glass armonica, the forgotten sound of history
Explore the enchanting world of the glass armonica, an 18th-century invention by Benjamin Franklin, and its unique music.
Curated Video
Optical Isomerism: The Chemistry of Mirror Images
Optical isomerism occurs in molecules that are chiral, meaning they cannot be superimposed on their mirror images. These isomers, known as enantiomers, differ in their optical activity—they rotate plane-polarized light in opposite...
Bedtime History
Antonie van Leeuwenhoek for Kids | Bedtime History
Antony van Leeuwenhoek was a Dutch scientist and a pioneer in the field of microbiology. Often referred to as "the Father of Microbiology," he was the first to observe and describe microorganisms using a microscope that he designed and...