Types of Shells
This spiral shell is commonly known for housing hermit crabs.
conch (or spiral shell)
This soft-bodied animal creates a shell and is commonly called a snail.
mollusk (or sea snail)
This is the outer protective layer of a shell.
shell (or exoskeleton)
Many shells wash up on this sandy coastal area.
beach
Shells are mostly made of this mineral substance.
calcium carbonate
This fan-shaped shell is often associated with scallops.
scallop shell
This animal produces pearls inside its shell.
oyster
This is the opening of a shell where the animal emerges.
aperture
Coral reefs are found in these warm ocean waters.
tropical waters
Some shells make this sound when held to your ear (supposedly).
the ocean (or wave sound illusion)
This long, narrow shell is often called a “tooth shell.”
tusk shell
This eight-armed creature sometimes uses shells for protection.
octopus
The pointed top of a spiral shell is called this.
apex
Tide pools are formed in this zone between high and low tide.
intertidal zone
This famous spiral shell is often used as a horn in cultures.
conch shell
This brightly patterned shell is often called a cowrie.
cowrie shell
This mollusk uses a radula to scrape food.
gastropod
The lines on a shell that show growth are called these.
growth lines (or rings)
Deep-sea shells must withstand this extreme condition.
high pressure
Shell color often helps with this survival function.
camouflage
This rare shell, once used as currency, is called the “Money ___.”
Money Cowrie
This animal cements itself to rocks and has a rough shell.
barnacle
The inner shiny layer of some shells is called this.
nacre (mother-of-pearl)
Hydrothermal vents are found in this ocean zone.
deep sea (or abyssal zone)
Some shells can regenerate small damages due to this process.
shell repair (or regeneration)