But what's an atom made of? What is matter, really? Matter is defined as that which 1) has mass and 2) has volume or takes up space. Mass is an intrinsic property whose base SI unit is the ...

Everything around us is made from matter. Matter is anything that has mass and takes up space. Learning how to sort matter into categories that share similar characteristics can help us make better ...

These particles could potentially hold the key to solving one of the most elusive mysteries in modern physics: dark matter. This strange and invisible substance is thought to make up around 85% of ...

Matter is made up of small particles called ... Particles in gases - AQA Gases take up more space than solids or liquids and their particles are moving much faster. The temperature, pressure ...