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- Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between the particles are different in solids, liquids and gases. The arrangement, movement and spacing of the particles explain many of the properties of solids, liquids and gases.
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Why should kids learn about solids & liquids?
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Teaching resources about solids, liquids, and gases. Learning about solids, liquids, and gases is a brilliant way to encourage an early interest in science. These building blocks of matter make up everything in existence.
Solids, liquids and gases have different properties. A solid has a fixed shape and volume but some solids can change shape when a force is applied. Liquids can be poured easily and take the shape of the bottom of the container that they are in. Gases are often invisible.
Nov 4, 2019 · When working with liquids and solids, it is important that students ensure their personal safety and the safety of others. This includes understanding why they should never put any materials in their mouths unless instructed to do so by the educator and why they should wash their hands after handling any materials. This inquiry could begin from:
When solid, the molecules in water are held tightly together and don't move easily. Liquid water is just called water. As ice heats up it will change phases to liquid water. Liquid molecules are looser and can move about easily. Gas water is called steam or vapor. When water boils it will turn to vapor.
- Matter is everything around us. Matter can be a confusing word because it has several meanings. We often hear phrases like “What is the matter?” or “It doesn’t matter”.
- Solid. Right now, you are probably sitting on a chair, using a mouse or a keyboard that is resting on a desk – all these things are solids. Something is usually described as a solid if it can hold its own shape and is hard to compress (squash).
- Liquid. The simplest way to determine if something is a liquid is to ask this question: If I try and move it from one container to another (i.e. by pouring), will it conform to (take on the shape of) the new container?
- Gas. The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape.
Solids. Examples of solids include ice, wood and sand. They stay in one place and can be held. They keep their shape. They do not flow like liquids. They always take up the same amount of space...
Key points. Substances can exist in three states of matter - solid, liquid and gas. All substances are made from particles, and the forces between the particles are different in solids,...
