Layers of the Earth
Earth's Interacting Spheres
Space
Fossils
Earth's Crust
300
The thinnest of Earth's layers
What is the crust?
300
Wind generates ocean waves
Atmosphere/hydrosphere
300
A large, spherical body that orbits a star
What is a planet?
300
What is a fossil?
Any evidence of ancient life
300
Which of these rock layers is the youngest?
Layer 1
350
The thickest of Earth's layers, spanning 1,800 km
Mantle
350
A river cutting through the ground to form a canyon
Hydrosphere/geosphere
350
This is the number of planets in our solar system
What is eight?
350
List three things we can learn from fossils
Examples:
Appearance, age, diet, evolution, ecosystems, color
350
Of the two types of crust, this one is thinner and more dense
What is oceanic crust?
400
Earth's crust is divided into these two types
What are oceanic crust and continental crust?
400
A volcano spewing dust and gas into the air
Geosphere/atmosphere
400
A small, rocky body that orbits a planet
What is a moon?
400
What is the difference between body fossils and trace fossils?
Body fossils - part of the organism
Trace fossil - evidence of behavior
400
Of the two types of crust, this one is thicker and less dense
What is continental crust?
450
This is Earth's only liquid layer
What is the outer core?
450
Humans building a dam
Biosphere/hydrosphere
450
This event occurs when the moon covers up the sun, from Earth's perspective
What is a solar eclipse?
450
In what TYPE of rock are fossils usually found?
Sedimentary rock
450
Mountains result from this type of plate boundary
What is a convergent boundary?
500
The inner core is made of these metals
What are iron and nickel?
500
Plants taking up carbon dioxide and releasing oxygen
Biosphere/atmosphere
500
This process happens inside stars, where hydrogen atoms are fused together to form helium
What is nuclear fusion?
500
What type of fossilization is the process of turning "bone into stone?"
Permineralization
500
An area where two tectonic plates slide past one another
What is a transform boundary?