a hard, gray or pink rock used to form a tool or weapon

a large farming tool drawn by animals that cuts long, narrow trenches in the soil

two or more atoms connected together

particle without charge in the atom`s nucleus

positive-charged particle in the atom`s nucleus

negative-charged particle found in the outer shells of an atom`s nucleus

a tiny part of matter

a substance made entirely of one kind of atom, like hydrogen or helium.

two or more atoms connected together

a particular type of matter that has the same properties

a table that organizes all elements on Earth

the center of an atom

when many cultures transitioned from hunting and gathering to farming

the supply of water to land or crops

a hard, gray or pink rock used to form a tool or weapon

a soft, gray or pink rock used to form a tool or weapon

a hard, purple or red rock used to form a tool or weapon

a hard, gray or pink rock used to form a tool or weapon

traveling from place to place without settling down

staying in a place settiling down.

the taming of wild animals or plants by humans

growing of wild animals or plants by humans

the taming of wild animals or plants by humans

taking care of animals or plants by humans

are made up of big particles called protons, neutrons, and electrons

are made up of smaller particles called protons, neutrons, nucleus, and electrons

are made up of even smaller particles called protons, neutrons, and electrons