🔬 Science Trivia
Quiz Set 5 — Earth Science
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is the innermost layer of the Earth?
The inner core is a solid ball at Earth's center, primarily iron and nickel.
Question 2 of 10
What scale measures earthquake magnitude?
The Richter scale (now superseded by moment magnitude) measures earthquake energy release.
Question 3 of 10
What is the most abundant gas in Earth's atmosphere?
Nitrogen makes up 78% of the atmosphere, far more than oxygen at 21%.
Question 4 of 10
What type of rock is formed from lava?
Igneous rock forms when magma or lava cools and solidifies.
Question 5 of 10
What is the term for a scientist who studies earthquakes?
Seismologists study earthquakes and seismic waves that travel through Earth.
Question 6 of 10
Which ocean is the largest?
The Pacific Ocean covers more than 30% of Earth's surface area.
Question 7 of 10
What causes ocean tides?
The Moon's gravitational pull is the primary driver of Earth's ocean tides.
Question 8 of 10
What is the process where rocks are broken down by weather?
Weathering is the breakdown of rocks in place; erosion involves movement.
Question 9 of 10
What is the most common mineral in Earth's crust?
Feldspar minerals make up about 41% of Earth's continental crust.
Question 10 of 10
What layer of the atmosphere contains the ozone layer?
The ozone layer is located in the stratosphere, 15–35 km above Earth's surface.
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