Meaning
Phonemic spelling
Collocation
Word family
100

What pH does an acidic SOLUTION have?

0 to 7

100

bɒnd

bɒnd

100

Precipitation is often used to _______ (verb) metal ions. 

remove

100
A substance may precipitate in highly pure form. 


Use the noun: PRECIPITATION

PRECIPITATION may occur in a substance in a highly pure form. 

200

The chemical process in which solid material is separated from a liquid is called ________

precipitation

200

pɑːtɪkl

ˈpɑːtɪkl/

200

In some cases it may be necessary to isolate an impure ________ (noun) and reprecipitate it. 

precipitate

200

Soil is a composition of oxygen, carbon, bacteria, and water. 

Use the verb: COMPOSE

Soil is COMPOSED of oxygen, carbon, bacteria and water. 

300

Name ONE product of the combustion process. 

methane, carbon monoxide

300

ælkəhɒl

ˈælkəhɒl

300

Chloride ions and silver ions ________ (verb) to form silver chloride. 

combine

300

The Sun emits solar energy. 

Use the noun: EMISSION

The EMISSION of solar energy is carried out by the sun. 

400

Tell me two things about the COMPOSITION of soil. 

water, clay / silt / sand, holes, bacteria, oxygen, carbon

400

prɪsɪpɪteɪt

/prɪˈsɪpɪteɪt/

400

In the filtration process, the liquid passes ______ (preposition) it. 

through

400

This plant absorbs carbon dioxide. 

Use the noun: ABSORPTION

The ABSORPTION of carbon dioxide is carried out by the plant. 

500

Name two TRANSITION metals. 

chromium, iron, nickel

500

kɒmpəzɪʃn

ˌkɒmpəˈzɪʃn

500

Mixing these components will cause silver chloride to be precipitated ______ (adverb). 

out

500

There is a correlation between these two variables.

Use the verb: CORRELATE

These two variables CORRELATE 

or

These two variables ARE CORRELATED. 

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