How many chambers does the human heart have?
Answer4
The heart has two upper chambers, the atria, and two lower chambers, the ventricles.
Science · Facts & stats
Chamber facts & stats
7 fact-checked facts about chambers in science, nature and music, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which sea creature has a spiral shell divided into gas-filled chambers that help it control buoyancy?
AnswerThe nautilus
The chambered nautilus adjusts gas and liquid in its shell chambers to rise and sink.
Going deeper
In physics, what does a cloud chamber let scientists see?
AnswerTracks left by charged particles
Charged particles passing through supersaturated vapor leave trails of tiny droplets that can be seen.
A standard piano trio is made up of piano, violin and which other instrument?
AnswerCello
A classical piano trio combines piano, violin and cello.
In a rocket or jet engine, where is the fuel burned?
AnswerThe combustion chamber
Fuel burns in the combustion chamber, and the hot gases then rush out through the nozzle.
Expert level
Which chamber of the heart receives oxygen-rich blood returning from the lungs?
AnswerThe left atrium
Pulmonary veins carry oxygen-rich blood from the lungs into the left atrium, which passes it to the left ventricle.
In a bubble chamber, particle tracks appear as bubbles in what kind of liquid?
AnswerA superheated liquid, such as liquid hydrogen
Particles passing through a superheated liquid trigger boiling along their path, leaving trails of bubbles.
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