Curated Video
Volcanic eruptions
Erupting volcanoes are a captivating example of materials changing state. Material processes - Solids, liquids and gases - Changes of state Learning Points Molten rock underground is called magma. Molten rock on the surface of the Earth...
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Advanced separation
Find out how advanced separation processes are used to separate substances in complex mixtures. Material processes - Separating mixtures - Other means of separation Learning Points Chromatography separates pigments in a liquid....
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Water cycle
Learn all about the Earth's water cycle. Physical processes -The Earth and beyond - Water and weather Learning Points Water constantly recycles itself through a process called the water cycle. Evaporation: the change of liquid water into...
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Very strange liquids
Not all liquids act the same ... some can behave very strangely indeed! Material processes - Solids, liquids and gases - Liquids Learning Points Liquids do not have a fixed shape. Non-Newtonian liquids change behaviour when a force is...
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Everyday liquids
What are the properties of a liquid? Material processes - Solids, liquids and gases - Liquids Learning Points Liquids do not have a fixed shape. The speed at which a liquid flows is known as viscosity. Liquids have fixed volume. The...
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Heat energy
Discover that heat energy can turn a solid metal into liquid. Physical processes - Energy and energy transfer - Heat and temperature Learning Points Heat energy always travels from a hotter to a cooler area. Heat energy causes molecules...
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Liquefaction
A fascinating example of a solid behaving as a liquid. Material processes - Solids, liquids and gases - Solids Learning Points Liquefaction causes solid soil to take on some characteristics of liquids. A Twig Context Film. Reinforce and...
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Why is urine yellow?
Urine is a waste product produced by humans and animals. Why is it yellow? Life processes - Living processes - Excretion Learning Points Urine is produced by the kidneys and is excreted through the bladder. Urine is mostly water, excess...
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What is a gas?
What are the properties of a gas? Material processes - Solids, liquids and gases - Gases Learning Points Gases do not have a fixed shape and so move to fill their container. The molecules in gases are widely spaced and move about...
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Snowflakes
How are snowflakes formed in such a dizzying array of patterns? Material processes - Solids, liquids and gases - Characteristics of water Learning Points Liquid water freezes at 0°C. The shape of a snowflake is changed at different...
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How do sounds travel?
Find out that sound waves always need a medium to travel through. Physical processes - Sound - How does sound travel? Learning Points Sound waves are known as compression waves. Sound waves travel at different speeds depending on the...
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Separation by evaporation
Learn how to find out the difference between tap water and spring water. Material processes - Separating mixtures - Separation by evaporation Learning Points Evaporation can be used to separate a solution. A solution is formed when a...
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Changing state
Materials change state all the time, but how and why? Material processes - Solids, liquids and gases - Changes of state Learning Points Melting is the change of state from solid to liquid. Evaporation is the change of state from liquid...
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Heat transfer
Investigate the ways in which heat can be transferred. Physical processes - Energy and energy transfer - Heat transfer Learning Points Conduction is the transfer of energy from one molecule to the next. Convection is the transfer of heat...
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Exploding mountains
Learn about the devastation caused when volcanic mountains erupt. People and places - Physical geography - Mountains Learning Points The solid rock found between the Earth's liquid core and the crust is called the mantle. In a volcanic...
Maddie Moate
How are Marbles made? | Maddie Moate
I went to the House of Marbles in Newton Abbot to catch up with glass-maker Paul and learn how to make my own multi-coloured glass marble!
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Matter and its Construction: States and Properties of Matter
By the end of this learning object, the student will be able to: Recognize the concept of matter. List the properties of matter. Compare among the three state of matters.4426
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Matter and its Construction: Molecule
By the end of this learning object, the student will be able to: Describe the properties of molecules.17353
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Matter and its Construction: Heat of Fusion and Vaporization
By the end of this learning object, the student will be able to: Recognize the concept of heat of fusion and vaporization16331
Curated Video
Why Does Water Evaporate at Room Temperature?
Water evaporates at room temperature because the molecules at the top of the liquid have less intermolecular attraction than those within the bulk. When the top layer is exposed to sunlight, some molecules gain enough kinetic energy to...
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I WONDER - What Is Plasma?
Zoom into 'What Is Plasma?' to see the fourth state of matter that lights up the stars and our neon signs! A quick, glowing adventure into physics, perfect for young scientists.
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I WONDER - What Are The States Of Matter?
Zoom into 'What Are The States Of Matter?' to discover how solids, liquids, gases (and more!) shape our world! A quick, bubbly adventure into physics, perfect for kids eager to explore.
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I WONDER - What Are Everyday Examples Of Different States Of Matter?
Explore 'Everyday Examples Of Different States Of Matter' to find the solid, liquid, and gas in daily life! Quick and fun for curious kids.