here's one: bodies of water through the change in seasons
Ice melting - Solid to Liquid
Water boiling - Liquid to Gas
Dry ice sublimating - Solid to Gas
Helium is usually in the form of a gas. Helium can liquefy, but it does so at a lower temperature than any other substance.
sunlight
Methane
milk latex fog smoke mist dust pearl opal clouds
enamel
water
An element is a substance in its pure and natural form.
Examples of natural fibres?
Density in matter, Every substance has its own, Natural property, Separating solids, liquids, and gases with precision, Intensely packed particles give it definition, Temperature and pressure influence its condition, Yielding unique characteristics for each material.
Helium is usually in the form of a gas. Helium can liquefy, but it does so at a lower temperature than any other substance.
a natural substance is something that is found again and again in many different forms eg. salt (also a reoccurring substance)
sunlight
Yes.
Natural gas, gasoline, and kerosene are some fuels made from petroleum.
Air that presses on the earth with force is atmospheric pressure. It is caused by changing in temperature and the natural movement of air around the Earth.
Natural gas is a physical substance.
Natural Resource