Front

What causes sand dunes to change shape?

Back

Wind and gravity.

Front

How do you round the number 26.68 to the nearest whole number?

Back

26.

Front

In the number 27,193, what is the value of the digit 7?

Back

70,000.

Front

What causes the Appalachian Mountains to be shorter and more rounded than the Rocky Mountains?

Back

Erosion.

Front

Which sentence is correctly punctuated?

Back

Without water, flowers cannot grow.

Front

What is erosion?

Back

The process by which natural forces move weathered rock and soil from one place to another.

Front

What is the value of the digit 7 in the number 74,918?

Back

700.

Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting a number to a nearby specified value, often to make it simpler.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks, while erosion is the movement of those broken pieces.

Front

What is the purpose of punctuation in a sentence?

Back

Punctuation helps clarify meaning and indicates pauses or stops in writing.