500 ACT Science Questions to Know by Test Day

281 Pages·2014·7.09 MB·English

by  Inc. Anaxos

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ISBN: 978-0-07182016-5
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CONTENTS
Introduction

Chapter 1 Test 1
Questions 1–45
Chapter 2 Test 2
Questions 46–88
Chapter 3 Test 3
Questions 89–133
Chapter 4 Test 4
Questions 134–173
Chapter 5 Test 5
Questions 174–217
Chapter 6 Test 6
Questions 218–261
Chapter 7 Test 7
Questions 262–299
Chapter 8 Test 8
Questions 300–344
Chapter 9 Test 9
Questions 345–386
Chapter 10 Test 10
Questions 387–430
Chapter 11 Test 11
Questions 431–478
Chapter 12 Test 12
Questions 479–500

Answers
INTRODUCTION
Congratulations! You’ve taken a big step toward ACT success by purchasing
McGraw-Hill Education: 500 ACT Science Questions to Know by Test Day. We
are here to help you take the next step and score high on your ACT exam so you
can get into the college or university of your choice.
This book gives you 500 ACT-style, multiple-choice questions that cover all
the most essential science material. Each question is clearly explained in the
answer key. The questions will give you valuable independent practice to
supplement your regular textbook and the ground you have already covered in
your science class.
This book and the others in this series were written by expert teachers who
know the ACT inside and out and can identify crucial information, as well as the
kinds of questions that are most likely to appear on the exam.
You may be the kind of student who needs extra study a few weeks before
the exam for a final review. Or you may be the kind of student who puts off
preparing until the last minute. No matter what your preparation style, you will
benefit from reviewing these 500 questions, which closely parallel the content,
format, and degree of difficulty of the science questions on the actual ACT.
These questions and the explanations in the answer key are the ideal last-minute
study tool for those final weeks before the test.
If you practice with all the questions and answers in this book, we are
certain you will build the skills and confidence you will need to excel on the
ACT. Good luck!
—The Editors of McGraw-Hill Education
CHAPTER 1
Test 1
Passage 1
A corn seed, or kernel, is made up of pericarp, aleurone, and endosperm layers.
Figure 1.1 shows the basic anatomy of a corn seed. The endosperm layer may be
yellow or white. The aleurone layer may be purple, red, or colorless. Unless the
aleurone is colorless, the color of the aleurone layer masks the color of the
endosperm layer.