Determine the right answer to fill in the blank spaces List items: water, natural, particles, mixture, salt, made, identical, minerals, gases, sand, cotton
A pure substance is something that is entirely made up of that are to each other.
Any substance that is not pure, must be a .
We are surrounded by mixtures. The air is a mixture of . The oceans are a mixture of (mainly) and . The solid earth is mostly rock, which is a mixture of different .
ressources are substances we need and use, which occur naturally. Some come from living things, (example) other are non-living (example) .
The opposite of a natural resource is a resource.

Science

Explanation:

A pure substance is something that is entirely made up of particles that are identical to each other.

Any substance that is not pure, must be a mixture.

We are surrounded by mixtures. The air is a mixture of gases . The oceans are a mixture of (mainly) water and salt. The solid earth is mostly rock, which is a mixture of different minerals.

Natural resources are substances we need and use, which occur naturally. Some come from living things, (example) cotton other are non-living (example)  sand.

The opposite of a natural resource is a made resource.

found in the nucleus

has mass of one amu

radiation warms things up temp rises convection currents air circ windy weather