Vocabulary

sickle

• the taming of wild animals or plants by humans

• particle without charge in the atom`s nucleus

• a farming tool with a semi-circular blade, used for cutting grain

plow

• 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

neutron

• 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

molecule

• a tiny part of matter

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

• two or more atoms connected together

Periodic Table

• a particular type of matter that has the same properties

• a table that organizes all elements on Earth

• the center of an atom

Neolithic Revolution

• 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

flint

• 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

nomadic

• traveling from place to place without settling down

• staying in a place settiling down.

• the taming of wild animals or plants by humans

domestication

• 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

Atoms

• 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