Most substances can exist as a solid, liquid or gas. They can change state, usually when they are heated or cooled. For example, liquid water turns into water vapour when it is heated enough, and ...

Water molecules, for example, will change from a solid state to a liquid state at temperatures over 0 degrees Celsius, and from a liquid to a gas at temperatures over 100 degrees Celsius.

States of Matter | Grades 2-5. Special | 16m 46s. Use your science knowledge and apply it using physical activity! Learn about the stages of matter, solid, liquid and gas, then perform an exercise ...

States of Matter. Water is the only substance on Earth that occurs naturally as a solid, liquid, and gas. It does so because the temperature and pressure on our planet are just right to allow ice ...

Matter is the "stuff" that makes up the universe. Everything that has mass is matter. In normal everyday life we come across matter in three states, solid, liquid and gas.