8 Science (Super Quiz) Formatted Sample Test Ans Key

8/13/2019 8 Science (Super Quiz) Formatted Sample Test Ans Key

1/7

20138th

GradeScience (Super Quiz) Sample Test

1984 Orange County Superintendent of Schools Office

2013 ORANGE COUNTY

ACADEMIC PENTATHLON

8th GRADE

SCIENCE (SUPER QUIZ)

SAMPLE TEST

Orange County Department of Education, 200 Kalmus Drive Costa Mesa CA

All rights reserved. No part of this material may be reproduced or transmitted in

any form or by any means without the prior written permission of OCDE.

The Academic Pentathlon logosm

is a service mark of OCDE


2/7

2013 8th

Grade Science (Super Quiz) Sample Test

1984 Orange County Superintendent of Schools Office 2

Instructions:

The following items (#1 - #15) are multiple choice. On your Scantron answer sheet, blacken the lettered space

(A-D) corresponding to the answer that BEST completes or answers each of the items.

1. Water has a pH of 7, making it a _________________.A. Strong acidB. Weak acidC.Neutral substanceD. Strong base

2. Glucose has a chemical formula of C6H12O6. How many atoms does one glucose molecule have?A.

1B. 6

C. 12D. 24

3. Which of the following atomic models first included a nucleus?A. Daltons ModelB. Thomsons ModelC. Rutherfords ModelD.

Bohrs Model

4. Which of the following happens when the particles in a solid are heated just enough to change state?A. FreezingB. MeltingC. EvaporationD.None of the above

5. An organic acid contains one or more __________________ groups; which is written as _________.A. Hydroxyl, -COOHB. Hydroxyl, -OHC. Carboxyl, -COOHD. Carboxyl, -OH


3/7

2013 8th




4/7

2013 8th



6. Use the periodic table below to determine which element is a transition metal.A. CopperB. CarbonC. AluminumD. Sulfur

7. Mike completed an experiment to see how the angle of incidence affected the efficiency of a solar cell.What was his independent variable?

A. The angle of incidence

B. The efficiency of the solar cellC. The surface area of the solar cell

D. All of the above

8. All of the hydrocarbons listed below have single bonds EXCEPT __________.

A. Butane

B. Ethene

C. Isobutane

D. Ethane

The Periodic Table of the Elements


5/7

2013 8th



9. What type of reaction is N2 + 2O22NO2?A. DecompositionB. ReplacementC. CombustionD.

Synthesis

10.__________________ is the crystalline form of carbon.A.NanotubeB. DiamondC. GraphiteD. Fullerene

11.What does the diagram tell us?

A. Krypton has 8 valence electrons.B. Krypton does not need any more electrons.C. Krypton is stable.D. All of the above.

12.Which of the following families are listed in order from most reactive to least reactive?A.

Alkali metals, Alkaline earth metals, Transition metalsB. Alkali metals, Transition metals, Alkaline earth metals

C. Alkaline earth metals, Alkali metals, transition metalsD. Transition metals, Alkaline earth metals, Alkali metals

13.Which element is NOT found in calcium hydroxide (Ca(OH)2)?A. CarbonB. CalciumC. HydrogenD. Oxygen


6/7

2013 8th



14.______________ are so small their mass is usually thought of as almost zero.A.NucleusB. ElectronsC.

NeutronsD. Protons

15.Which is one of the six most common elements found in living things?A. IronB. CalciumC. PotassiumD.None of the above


7/7

2013 8th



2013 Academic Pentathlon

8thGrade Science (Super Quiz) Sample Test

Answer Key

1. C M p. 327 V2. D H pgs. 262-263 S3. C P p. 127 H4. B P p. 97 V5. C P p. 303 H6. A M p. 217 S7. A H p. 51 H8. B P p. 301 S9. D M p. 275 H10. B P p. 294 V11. D H p. 237 S12. A M p. 217 S13. A H pgs. 196-197 V14. B H p. 173 V15. D M p. 340 H

8 Science (Super Quiz) Formatted Sample Test Ans Key

Documents

Transcript of 8 Science (Super Quiz) Formatted Sample Test Ans Key