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Properties of the different states of matter can be explained in terms of the motion and arrangement of particles (ACSSU151)
States of matter,
Properties of matter,
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In this learning sequence, students explore a simple particle model for matter, heat energy and thermal expansion. They apply their learning to the context of expansion and contraction of rail lines and investigate ways that this is mitigated in real situations involving rail lines. They subsequently explain this to young ...
All substances are made up of tiny particles. A change in temperature can change the way these particles behave. Watch as the Surfing Scientist demonstrates how a gas behaves when it is heated. Find out whether the balloon gets sucked or pushed into the bottle!
Explore with the Surfing Scientist team what happens when metals are heated and cooled. Find out what happens to a metal ring when it is immersed in extremely cold liquid nitrogen. What do hinges on the Sydney Harbour Bridge have to do with all this? Find out.
Imagine trying to pick up a slippery ice cube with just a piece of string. Watch the Surfing Scientist team demonstrate how it can be done, using a surprising additive.
Some magic tricks, such as disappearing ink or candles that won't blow out, can be explained by chemistry. In this clip, three classroom chemistry experiments demonstrate that some familiar magic tricks rely on acid-base chemical reactions, and the properties and behaviour of gases. Watch closely if you've ever wanted to ...
Select samples from an outdoor setting. Magnify the substances to atomic level so that the particles they consist of can be seen. Sort the substances into groups based on how the particles are arranged and how they move. Classify the substances as solids, liquids or gases. For example, classify argon as a gas and ice as ...
Can you imagine being able to crush a can without hitting or squashing it? Watch as Ruben the Surfing Scientist shows you how this can be done. Listen to Ruben explain the science behind the imploding can and find out what invisible force is involved.
Imagine you could walk on water! Some insects can do just that. Watch as the Surfing Scientist uses a paperclip and a glass of water to demonstrate how this is possible.
Explore the different types of minerals inside rocks. See that most rock-forming minerals are made up of just two common elements. Discover that most minerals are made up of the same basic building blocks put together in different ways, and that this can explain some of their properties.
This resource is an interactive game in which floating symbols, representing the chemical elements, are dragged into their correct position on a Periodic Table of Elements. Players can click on the elements in the table to alternate between its name and symbol; and double click to see some of its properties and uses. This ...
Take a journey with two 2013 Sleek Geeks Eureka Science Schools Prize finalists, as they present their take on the history of steam power. See how they link steam power, the properties of water and the way energy is converted. WARNING: if flickering light affects you, you may be best to avoid watching this video.
Some liquids are denser than others. The relative density of two liquids will determine which one will float on top of the other. Liquids that are less dense will float on top of one that is denser. Based on this, which of these two liquids do you think will float on top of the other: olive oil or milk?
Want to do a simple science experiment that works just like a magic trick? Watch the Surfing Scientist to find out how. He creates a pattern made up of regular shapes by dissolving coated chocolate buttons.
Why are some metals prized more for jewellery than others? Listen to presenter Bernie Hobbs explain the chemical reaction that affects the look and durability of metals. Using the periodic table and some dazzling computer graphics, Bernie demonstrates why 'oxygen-proof, low-reactivity, transition metals' such as gold keep ...
Explore some of the amazing properties of liquid nitrogen with Ruben the Surfing Scientist. Find out how Ruben proves that liquid nitrogen is very very cold. See the effect of adding liquid nitrogen to water.
What is the relationship between mass and energy? Dr Derek Muller uses the sun as an example to explain Einstein's famous formula, E=mc2.
Did you know you can measure gravity? The more mass an object has, the more gravity it has, so by measuring the mass of something, you can figure out its gravity. Why do you think climate scientists may want these measurements? Watch this NASA animation to find out.
Nitrogen gas makes up 80% of the air we breathe, and if we cool the nitrogen gas down to minus 196 Celcius and squash it down we can turn it into liquid nitrogen. This liquid takes up much less space than it did as a gas. When we warm up liquid nitrogen it will turn back into a gas and take up more room, so what happens ...
Explore the elements contained in the periodic table and the structure of some molecules found in everyday items. Build an element by adding the correct number of protons, neutrons and electrons, and construct a molecule by correctly placing atoms onto the structure. Symbols and formulas used to represent elements and molecules ...
People rely on plants to survive, and plants are affected by people. This unit shows some of the relationships that make up earth's ecosystem. This inquiry-based sequence of six lessons is based on current food security, sustainability and photosynthesis research. The experiments and activities include easy to set and see ...