top_category
stringclasses
1 value
subcategory_1
stringclasses
3 values
subcategory_2
stringclasses
10 values
subcategory_3
stringclasses
54 values
subcategory_4
stringclasses
172 values
subcategory_5
stringclasses
602 values
subcategory_6
stringlengths
3
65
subcategory_7
stringlengths
3
94
subcategory_8
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Pyroclastic rocks
Tephra
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rocks in religion
Sacred rocks
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock climbing
Rock climbers
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock climbing
Climbing competitions
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock climbing
Climbing equipment
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Abu Simbel
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Cliff dwellings
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Indian rock-cut architecture
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Monolithic churches in Ethiopia
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Petra
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Rock-cut tombs
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock-cut architecture
Sacred caves
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Bitumen-impregnated rocks
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Bituminous sands
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Breccias
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Carbonate rocks
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Chert
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Claystone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Coal
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Conglomerates (geology)
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Evaporite
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Flint (rock)
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Mudstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Oil shale
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Sandstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Shale
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Siltstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Sedimentary rocks
Slate
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Stone objects
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Alabaster
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Bluestone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Building stone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Claystone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Conglomerates (geology)
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Deaths by stoning
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Fictional characters with earth or stone abilities
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Gravel roads
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Limestone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Lithophones
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Mudstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Quarrying
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Sandstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Siltstone
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Stonemasonry
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Stone (material)
Stones
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Rocks
Rock stubs
Meteorite stubs
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Soil by country
Soil in Chile
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Soil by country
Soil science in India
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Soil by country
Soil in the United States
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Alkaline soils
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Clay
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Peat
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Permafrost
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Serpentine soils
null
Applied sciences
Applied and interdisciplinary physics
Geophysics
Structure of the Earth
Lithosphere
Soil
Types of soil
Soil classification
null