Show the animation Conservation of Mass in Physical and Chemical Changes. Explain that whether a process involves melting, dissolving, or a chemical reaction, all the atoms that were there before the ...

Measuring mass with marble fizz and massive bricks! Matter cannot be created nor destroyed. But weight, there’s more to know about the Conservation of Mass! STEM Challenge: Designing a Simple ...

Learn about the conservation of mass in physical and chemical reactions in this guide for students aged 11 to 14 from BBC Bitesize.

Mass is a form of energy and when gas falls into a black hole, that material’s energy is added to the black hole’s, ... Black holes do not violate the law of conservation of energy.