6th Grade Vocabulary Quiz Weeks 15-16

to keep up; to support

• substitute
• conserve
• sustain
• accumulate

to harm by contact with something undesirable

• aggravate
• conserve
• diminish
• contaminate

to increase in number or amount; to gather

• accumulate
• conserve
• diminish
• sustain

severe; extreme

• frugal
• drastic
• vital
• extravagant

danger; something that is dangerous

• impurity
• resource
• contaminate
• peril

to save by using carefully

• accumulate
• conserve
• diminish
• sustain

something that is harmful or dirty

• impurity
• contaminate
• resource
• frugal

to make worse; to anger or annoy

• accumulate
• contaminate
• aggravate
• diminish

to make or become smaller or less; to reduce

• contaminate
• conserve
• diminish
• sustain

lasting or seeming to last forever or for a long time; continuous

• sustain
• conserve
• accumulate
• perpetual