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Dorling Kindersley Science Encyclopedia Work/Review Sheets

CARBON

Read each question and circle the letter of the best answer.
NOTE: Some questions may have more than one "correct" answer - think carefully about what you have read, and choose the most complete one.


1.What group on the periodic table does Carbon (C) belong to?
A) Group 14. B) Group Session. C) The Rock Group. D) A, B & C.

2.Why is Carbon such an important element?
A) We have it in our bodies. B) We eat it in our food. C) Nothing living could survive without it. D) A, B, & C

3.The Carbon atom can bond with how many other atoms?
A) A few. B) Four. C) Hundreds of thousands. D) A, B and C.

4.In what two forms does pure Carbon appear in nature?
A) Diamond and graphite. B) Chalk and coal. C) The hardest mineral known and a drawing medium. D) A & C.

5.Where did the "Buckyball" get its name?
A) American engineer, Buckmkinster Fuller. B) 3rd allotrope of Carbon. C) It looks like a domed roof. D) A & C.

6.A little Carbon dioxide puts the fizz in soda, but too much of it in the air can do what?
A) Traps heat in atmosphere. B) Might raise Earth’s temperature. C) Could cause climate changes. D) A, B & C.

7. Why are carbon fiber composites used in objects like tennis rackers and small airplanes?
A) Color and texture. B) Strength and lightness. C) Temperature control. D) A, B & C.

8.How does Activated Charcoal help clean water or air?
A) Great powers of absorption. B) Attracts materials. C) Removes gases and odors. D) A, B & C.

9.Diamonds and graphite are both pure allotropes of Carbon. How are they different?
A) Diamonds are clear, graphite is grey.. B) Diamonds cost a lot but graphite is cheap. C) Diamonds are hardest mineral known, graphite’s soft enough to leave a line on paper. D) A,B & C.

10.How thick is a Carbon fiber?
A) Much thinner than a human hair. B) Thin as a human hair. C) Thick as ten human hairs. D) Thin as a horse hair

11.How strong are Carbon fibers?
A) As strong as a human hair. B) As strong as steel. C) 8 times stronger than steel. D) Not very.

12.Carbon has an unusual quality among nonmetals. What is it ?
A) It is a good conductor of electricity. B) It melts easily. C) It never melts. D) A, B and C.

What more can you say about MATTER now?________________________________________________________________________________
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Matter19 ©1999-2001 Sassafrass Grove Homeschool
NOTE: These work/review/related-activity sheets are for use with the DK Science Encyclopedia as a 12 part science study. The first portion of the initial section, "Matter" is presented here. More will be added as time permits. If you find errors or see need for additions, please contact us at the e-mail address provided at the bottom of this page.

This site and these worksheets are in no way associated with nor endorsed by Dorling Kindersley.
©2001 S.A.McUmber-House, Sassafrass Grove - all rights reserved

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