HOW DO ARCHAEOLOGISTS FIND OUT ABOUT THE PAST

• Archaeologists use material remains (artefacts and buildings)to find out about the past
• Artefacts are objects made by people
• The time before writing was developed was called prehistory
• post holes show the size and shape of buildings
• Archaeologists find sites by chance discoveries, geophysical survey(using scientific instruments),stories from the past, maps, aerial pohtography(using drones or airplanes to show srop marks)
• statigraphy is when the oldest objects are at the bottom of the layer and the youngest at the top
• All finds are catalogued in a field computer or in a site books
• Tree-ring/dendrochronology dating is used to estimate the age of wood
• radiocarbon dating is seeing how much carbon is inside an object and whats left is how old it is
• Conservation is the protection and preservation of an ancient object so they don't decay