equivalent fractions (noun) ē-'kwi-vuh-lent 'frak-shunz fractions that have the same value Two equivalent fractions are 1 2 and 2 4 . equivalent measurements (noun) ē-'kwi-vuh-lent 'me-zhurr-ment two ways to describe the same amount You create equivalent measurements by converting units within a measurement system. erode (verb) e-'rōd to wear away Strong winds erode the rock. erosion (noun) ē-'rō-zhun wearing away of rocks and soil The wind and water over many years causes erosion. errand (noun) 'aer-rand a quick trip for a particular purpose I run an errand to the market with my mom. evacuate (verb) e-'va-kyū-āt to leave a place because of an emergency The people had to evacuate the building when the fire alarm went off. evenly (adverb) 'ē-ven-lē in a regular way The Sun’s rays don’t heat the atmosphere evenly. expand (verb) eks-'pand to make wider or larger Water expands when it freezes. expedition (noun) eks-puh-'di-shun a journey taken for a reason Astronaut Jack Fisher enjoys the view on one of his space expeditions. experiment (noun) eks-'pe-ruh-ment a planned demonstration to discover something We mix liquids for our experiment. expression (noun) eks-'pre-shun a common saying “You can’t judge a book by its cover” is a common expression. F fat (noun) fat oily substance found in parts of animals and plants Most meat contains more fat than fish does. 2 4 1 2 335 DICTIONARY equivalent fraction fat
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