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Dorling Kindersley Science Encyclopedia Work/Review Sheets
ATOMIC STRUCTURE
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.How many atoms would it take to cover the period shown after this question? .
A) Several hundred B) 2,765 C) Millions D) A, B & C.
2.Where is the "nucleus" of an atom found?
A) Right next to the atom B) Surrounding the atom C) At the center of the atom D) A, B & C.
3.What is the nucleus made up of?
A) Photons and neurons B) Protons and neutrons C) Democrats and Republicans D) A, B & C.
4.What are the particles that whiz around this nucleus called?
A) Electricians B) Electrodes C) Electrons D) A, B & C.
5.Some substances, such as water, are made up of molecules. What are "molecules"?
A) Small groups of Mollies B) Several kinds of atoms joined together in a group C) Atoms that have the same name D) A, B & C.
6.What does the number of protons in an atom's nucleus determine?
A) The atom's Atomic Number B) The number of electrons in that atom C) The number of neutrons D) A, & B.
7.What are electrons?
A) Negatively charged bundles of energy that travel in shells around the nucleus of an atom B) Little balls of light that surround atoms C) Little planets orbiting the center of the atom D) A, B & C.
8.What are atoms of an element that have the same number of protons but different numbers of neutrons?
A) Cousins B) Isotopes C) Nothing - it doesn't happen D) A, B & C.
9.Even in atoms with many particles, most of the atom is empty space. What makes up most of an atom's mass?
A) The nucleus B) The electrons C) The atomic number D) A, B & C.
10.What smaller particles are the atom's protons and neutrons made up of?
A) Bytes and bits B) Quirks and glucose C) Quarks and gluons D) A, B & C.
What more can you say about MATTER now?________________________________________________________________________________
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Matter06 ©1999-2000 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.
©1999 S.A.McUmber-House, Sassafrass Grove - all rights reserved
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