A teacher divides her class into groups and assigns each group the task of measuring the mass of the same object
three times. The teacher already knows that the mass of
the object is 25 g.
Based on the results each group records, which group makes the most
precise measurements of the object?

What percentage of the earth's water is available for use by living things?

All of these sentences include commonly confused homophones. which sentence is correct? you put too much sugar on your breakfast serial. my father grows vegetables and flours in his garden. will someone me untie the knot in my shoelace? when did the captain set sale on his trip to north america?

Jim has found that he must consume 2,300 calories a day to reach his health goals, but he doesn't want to give up his afternoon snack of pretzels. unfortunately, he tends to eat the entire bag — which amounts to 1,300 calories! what strategy should jim use to improve his habits?