<div>Time to read a book.<br>Time to wash dishes.<br>Time to do this or that.<br><br>You say things like this every day, all the time. But there was a time when time itself was undefined—no one knew the difference between a minute, an hour, or a day.<br>Then people started creating tools to measure time. First they used the big stuff around them—the sun, the moon, water. Soon after, using the knowledge they got from their natural time-telling tools, people began to build clocks—huge clocks unlike the ones we use today. They also used their knowledge of the sun and moon to create calendars made up of months and years.<br>Now, centuries later, we have clocks all around us. We can easily figure out how long a month is. But it took many years of tinkering and inventing to perfect the art of telling time. You could take a few moments now to read all about time. If you have a minute, that is.</div><div> </div>This title has been selected as a Common Core Text Exemplar (Grades 4-5, Informational Texts)
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Seller: World of Books (was SecondSale), Montgomery, IL, U.S.A.
Condition: Good. Good condition ex-library book with usual library markings and stickers. Seller Inventory # 00095034968
Seller: World of Books (was SecondSale), Montgomery, IL, U.S.A.
Condition: Acceptable. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00061912100
Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Very Good. Used book that is in excellent condition. May show signs of wear or have minor defects. Seller Inventory # 13396671-20
Seller: Better World Books: West, Reno, NV, U.S.A.
Condition: Very Good. Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Seller Inventory # 2397757-6
Seller: Better World Books, Mishawaka, IN, U.S.A.
Condition: Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. Seller Inventory # 2397756-75
Seller: HPB-Ruby, Dallas, TX, U.S.A.
hardcover. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_449931430
Seller: HPB Inc., Dallas, TX, U.S.A.
hardcover. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_430184941
Seller: ThriftBooks-Phoenix, Phoenix, AZ, U.S.A.
Hardcover. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0618396683I3N00
Seller: ThriftBooks-Reno, Reno, NV, U.S.A.
Hardcover. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0618396683I3N00
Seller: ThriftBooks-Phoenix, Phoenix, AZ, U.S.A.
Hardcover. Condition: Very Good. No Jacket. Former library book; May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G0618396683I4N10