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See Horus, the Baby Reindeer, Get a Bottle Feeding
Learn all about the reindeer weaning process at the San Diego Zoo, and why this little guy is right on track.
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Lechatliers principle and pressure effect
Explains how equilibrium shifts in response to pressure changes, following Le Chatelier’s Principle
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Solid State Electrical Properties and Band Theory
Electrical conductivity varies from metals to insulators. Solids can be divided into three categories: conductors, insulators, and semiconductors. Conductors are solids through which electricity can flow to a large extent, classified as...
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Understanding Interstitial Defects Hidden Spaces
Imperfections in solids are irregularities or deviations from the ideal arrangement of atoms or molecules in a crystalline solid structure. These defects can occur during the crystallization process when the rate of crystal formation is...
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Beautiful Bonds The World of Covalent and Metallic Solids
Beautiful Bonds: The World of Covalent and Metallic Solids Covalent solids, also known as network solids, are materials with atoms bonded together in a continuous network by covalent bonds, resulting in large, rigid structures. These...
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Amorphous Insights The Science of Non-Crystalline Solids
Studying Non-Crystalline Materials A substance that lacks a regular and ordered arrangement of its constituent particles is referred to as an amorphous solid. Amorphous solids include things like proteins, plastics, glass, rubber, and...
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Molecular Matters Polar and Non-Polar Solids
Molecular Matters: Polar and Non-Polar Solids Polar molecular solids are crystalline solids with a permanent dipole moment due to differences in electronegativity between atoms. These solids have strong dipole-dipole interactions, lower...
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Exploring Crystalline and Ionic Solids
Exploring Crystalline Ionic Solids. Crystalline solids have a regular internal arrangement of particles, a long range order, and sharp melting points. They are hard and rigid, with a characteristic heat of fusion. They are anisotropic,...
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Crystal Clear - Understanding Crystalline Solids
Clear as Glass: A Guide to Crystalline Solids Crystalline solids consist of substances with their constituents arranged in a precise and organized manner. A wide variety of naturally occurring solid substances can be found in crystalline...
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Exploring the Core Key Properties of Solids
Exploring the Core: Basic Solid Properties Solids diffuse slowly compared to liquids and gases, as constituent particles are closely packed, allowing little space for movement. They have a higher density than gases and liquids. Most...
Science ABC
Can Metals Exist as Gases?
Yes, metals can exist in gaseous forms. To illustrate, let's consider lead, which has a boiling point of 1740°C. When heated past its melting point of 327°C, lead turns into a gas at 1740°C. Another notable example is mercury, which...
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Ion
An atom or molecule that has gained or lost one or more electrons, and so has an electrical charge. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Volatile
A substance which turns easily to a vapour at normal temperatures and pressures. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Flammable
Easily ignited, able to catch fire easily. Flammable materials may be solids, liquids, or gases. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Ionic compound
A chemical compound typically formed from metal and non-metal elements combining. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
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Changing States of Matter
Water can either be a solid, a liquid or a gas. How does matter change state? Chemistry - Atoms And Bonding - Learning Points. Ice, liquid water and steam all consist of exactly the same molecules. Evaporation occurs when the temperature...
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Solids, Liquids and Gases
What is the difference between solids, liquids and gases? How does each state behave? Chemistry - Atoms And Bonding - Learning Points. The kinetic theory of matter states that particles are in constant motion and there are forces of...
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Polyhedra: Platonic Solids
A special set of symmetrical solid shapes that were once thought to be the building blocks of the Universe – what are the characteristics of the Platonic Solids? Includes summing of interior angles. Maths - Shape A Twig Math Film....
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Water Forces
The unique force created by hydrogen bonding gives water some unique properties, which seem to defy the laws of nature. Chemistry - Atoms And Bonding - Learning Points. Hydrogen bonding is a special force of attraction between water...
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Heat Transport
Conduction, convection and radiation are all ways in which heat is transported. How does each work, and what are they useful for? Physics - Energy And Radioactivity - Learning Points. The three types of heat transport are conduction,...
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Speed of Sound
Sound waves move through different mediums at different speeds, but why is this? What factors affect the speed of sound? Physics - Waves - Learning Points. Speed of sound depends on many different factors. Temperature, elasticity and...
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What is Sound?
Sounds can vary greatly: extremely quiet or deafeningly loud, high and shrill to low and booming. Why are they so different? Physics - Waves - Learning Points. Sound is a vibration passed to and fro along particles forming a wave. It can...
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Salt
In chemistry, an ionic compound containing positive metal ions and negative non-metal ions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Solids – Pixelate
What is it? ... These are bricks! Material processes - Solids, liquids and gases - Solids A Twig Tidbit Film - Pixelate. A pixelated image unscrambles. The children have to guess what it is.