Tectonic Plates
State the name of the boundary that is found above the Pacific Ocean.
The Pacific Plate
Draw arrows to show A. Convergent, B. Divergent and C. Transform boundary movement.
A. --> <--
B. <-- -->
C. ^v
Define volcano based on the definition provided in the EDI.
A geological feature where extremely hot material from inside the Earth erupts through the surface.
What is the process by which green plants make their own food using sunlight, carbon dioxide, and water?
Photosynthesis
Which space agency successfully landed the first human on the Moon in 1969?
NASA
Identify the 2 Earth layers that make up tectonic plates.
Crust and Mantle
Explain what a volcanic eruption is.
When pressure is released, it creates an explosion that ejects extremely hot material (ash, cinders, lava, gas)
What is the layer of Earth underneath the crust and above the core called?
Mantle
What planet is known as the red planet?
Mars
Identify which crust is more dense (oceanic or continental).
Oceanic
Rift valleys are formed at divergent plate boundaries. Cracks in the Earth's crust get pushed apart from rising magma that solidifies.
Describe how volcanoes are formed at convergent boundaries.
Created at a subduction zone.
Oceanic crust sinks into the mantle, which melts, then rises to solidify into volcanic arcs.
What is the process of water changing into vapour called.
Evaporation
State the chemical symbol for gold.
Au
State the difference between continental crust and oceanic crust.
The continental crust is the crust of land masses. Oceanic crust is the crust of the ocean floor.
Describe how island arcs are formed
Island arcs are formed at subduction zones. The denser, older crust subducts underneath the younger crust. This melts into the magma which rises up to form island arcs.
Describe how volcanoes are formed at divergent boundaries.
When two plates move away from each other, magma rises to fill up space, this solidifies and forms a volcano.
What is the atomic number for oxygen
8
What is the law that states that for every action, there is an equal and opposite reaction?
Newtons (3rd) Law
List all 7 of Earth's major tectonic plates.
North American, South American, Pacific, Eurasian, African, Australian, Antarctic
Oceanic ridges are formed via seafloor spreading. Magma escapes through weak crust. When it reaches the surface, it cools to form rock. The younger rock then pushes the older rock further away creating an oceanic ridge.
Identify the 7 components of a volcano.
1. M.C. 2. V 3. L 4. C 5. S.C. 6. A.C.G 7. V.B.
1. Magma Chamber
2. Vent
3. Lava
4. Crater
5. Secondary Cones
6. Ash, Cinder, Gas
7. Volcanic Bombs
What is the common name for dihydrogen monoxide.
Water / H2O
What is the pH value for a neutral substance.
pH 7