The final stage of metallurgy?
What is shaping
The type of volcano is made from alternating layers of lava and ash?
What is a composite volcano
The first type of reusable space craft?
What is a space shuttle
The fastest type of earthquake waves?
What are primary waves
The first man on the moon?
Who is Neil Armstrong
The largest group of minerals which comprises 90% of the earth’s crust?
What are silicates
The bowl- shaped hollow formed by the collapse of an underground magma chamber?
What is a caldera
Moons that help keep a planet's rings in place are called?
What are shepherd moons
The method for reducing earthquake damage by placing buildings on movable "stilts" that absorb earthquake energy?
What is the base- isolated system
The first person to travel in space?
Who is Yuri Gagarin
The middle of the earth's three main layers ?
What is the mantle
The large almond or teardrop -shaped pieces of ejecta?
What is a volcanic bomb
The visible part of the sun?
What is the photosphere
Smaller earthquakes that follow a large earthquake days or months later?
What is an aftershock
The Father of Modern Rocketry?
Who is Robert Goddard
The study of the earth?
What is geology
A volcano that has been active in recorded history or still producing seismic activity?
What is an active volcano
What is an object so massive and dense that not even light can escape?
What is a black hole
What is a fault
The first American to orbit the earth?
Who is John Glenn
A well-known amorphous igneous rock that has a glass-like texture and splits to form sharp edges?
What is obsidian
An underground channel that formed when surface lava hardened before the lava underneath it?
The term that refers to the "backward" rotation of a planet?
What is retrograde
The bending or buckling of rocks under great force produces?
What is a fold
Any activity that is performed by an astronaut outside a spacecraft?
What is an EVA