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Materials & Substances — Lesson 18

5:00
0/12
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Fast recall sprint

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Browse the cards below, then start a play round — five minutes of quick drills that lock each word into memory.

compost
Specimen

compost

ˈkɑːmpoʊst
A mixture of decaying vegetation and manure; used as a fertilizer — we add kitchen scraps to our compost bin.
We add kitchen scraps to our compost bin.
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concentrate
Specimen

concentrate

ˈkɑːnsəntreɪt
The desired mineral that is left after impurities have been removed from mined ore — I can't concentrate when the TV is on.
I can't concentrate when the TV is on.
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concentrates
Specimen

concentrates

ˈkɑnsəntɹeɪts
The desired mineral that is left after impurities have been removed from mined ore — the factory produces fruit concentrates for export.
I bought a bottle of orange juice concentrate.
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conglomerate
Specimen

conglomerate

kənˈɡlɑːmərət
A composite rock made up of particles of varying size — the company grew from a small startup into a massive conglomerate.
The media conglomerate owns several television networks and newspapers.
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conglomerates
Specimen

conglomerates

kənˈɡlɑːmərəts
A composite rock made up of particles of varying size — corporate conglomerates often expand by acquiring smaller businesses.
The media conglomerate owns several television networks and newspapers.
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conjugate
Specimen

conjugate

ˈkɑːndʒʊɡeɪt
List or change the form of a verb to show its different tenses, persons, and — can you conjugate this French verb for me?
Students must learn to conjugate verbs in the present tense.
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coolant
Specimen

coolant

ˈkuːlənt
A liquid or gas that is used to reduce or control temperature in engines — we added more coolant to the radiator.
The coolant in the car engine needs to be checked regularly.
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copolymer
Specimen

copolymer

koʊˈpɑːlɪmər
A polymer consisting of two or more different monomers — scientists synthesized a new copolymer for drug delivery applications.
The copolymer exhibits improved elasticity compared to the original homopolymer.
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corks
Specimen

corks

kɔrks
Corks are the plural form of cork, referring to small cylindrical pieces of — she collected colorful corks in a glass jar.
He pulled the corks from three different wine bottles.
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corpuscle
Specimen

corpuscle

ˈkɔːrpʌsəl
(nontechnical usage) a tiny piece of anything — the doctor examined the patient's blood corpuscles under the microscope.
The doctor examined the patient's blood corpuscles under the microscope.
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corpuscles
Specimen

corpuscles

ˈkɔːrpəsəlz
(nontechnical usage) a tiny piece of anything — red corpuscles carry oxygen throughout the body.
Red corpuscles carry oxygen throughout the body.
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corrosive
Specimen

corrosive

kəˈroʊsɪv
A substance having the tendency to cause corrosion (such a strong acids or alkali) — salt water is highly corrosive to iron pipes.
The corrosive acid burned through the metal surface.
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▸ Catalogue Progress 0 / 12 specimens catalogued

Mark each specimen as learned to complete this drawer.