Massachusetts Comprehensive Assessment System Practice Test Mathematics Science and Technology/Engineering Grade 8 Student Name School Name District Name [MCAS Logo] This is a practice test. Your responses to practice test questions must be recorded on your Practice Test Answer Document. Mark only one answer for each multiple-choice question. If you are not sure of the answer, choose the answer you think is best. HOW TO ANSWER OPEN-RESPONSE QUESTIONS • Read all parts of each question carefully. • Make each response as clear, complete, and accurate as you can. • Support your responses. • Check your answers. Mathematics DIRECTIONS This part of the practice test contains one multiple-choice question, one short-answer question, and one open-response question. Mark your answers to these questions in the spaces provided on pages 6 and 7 of your Practice Test Answer Document. 1. What is the value of the expression below when [v equals five] and [t equals one]? [vt minus sixteen t squared] A. 121 B. 21 C. [negative eleven] D. [negative two hundred fifty one] Question 2 is a short-answer question. Write your answer to this question in the box provided on page 6 of your Practice Test Answer Document. Do not write your answer on any other page. You may do your figuring on any other page. 2. In the figure below, parallel lines l and m are intersected by transversal p. [Horizontal parallel lines l and m intersected by transversal p with angles labeled one and two] If the measure of [angle one] is 50°, what is the degree measure of [angle two]? Question 3 is an open-response question. • BE SURE TO ANSWER AND LABEL ALL PARTS OF THE QUESTION. • Show all your work (diagrams, tables, or computations) in your Practice Test Answer Document. • If you do the work in your head, explain in writing how you did the work. Write your answer to question 3 in the space provided on page 7 of your Practice Test Answer Document. [calculator icon] You may use a calculator to answer this question. 3. A rancher has two water tanks. • Each water tank is in the shape of a cylinder. • The base of each water tank is in the shape of a circle. Diagrams of the two water tanks are shown below. [Water tank one is 6 feet wide. Water tank two is question mark feet wide.] a. What is the circumference, in feet, of the base of Water Tank 1? Show or explain how you got your answer. (Use 3.14 for pi.) b. The circumference of the base of Water Tank 2 is 6.28 feet longer than that of Water Tank 1. What is the diameter, in feet, of the base of Water Tank 2? Show or explain how you got your answer. (Use 3.14 for pi.) c. How many more square feet does the base of Water Tank 2 cover than the base of Water Tank 1? Show or explain how you got your answer. (Use 3.14 for pi.) Science and Technology/Engineering DIRECTIONS This part of the practice test contains two multiple-choice questions and one open-response question. Mark your answers to these questions in the spaces provided on page 9 of your Practice Test Answer Document. 1. The illustration below shows Earth and the Sun. [Sun and Earth (not to scale)] What season does the Southern Hemisphere experience when Earth and the Sun are in the positions shown? A. fall B. spring C. summer D. winter 2. While hiking through Granville State Forest, a student found an organism. It resembled a plant, but appeared to lack chlorophyll. When the student examined a sample of the organism using a microscope, he saw many cells with cell walls and no chloroplasts. This organism is most likely a member of what Kingdom? A. Animalia B. Eubacteria C. Fungi D. Protista Question 3 is an open-response question. • BE SURE TO ANSWER AND LABEL ALL PARTS OF THE QUESTION. • Show all your work (diagrams, tables, or computations) in your Practice Test Answer Document. • If you do the work in your head, explain in writing how you did the work. Write your answer to question 3 in the space provided on page 9 of your Practice Test Answer Document. 3. The diagram below shows a cube being studied by a science class. [Image of a cube] The density of water is 1.0 g/cm^3. Although the class has no water, the students want to know if the cube will float or sink in water. a. List the instruments needed to conduct this investigation. b. Explain, in detail, the steps that must be taken to determine if the cube will float or sink. MASSACHUSETTS COMPREHENSIVE ASSESSMENT SYSTEM Grade 8 Mathematics Practice Test Answer Document School Name: District Name: Last Name of Student: First Name of Student: Marking Instructions •Use a No. 2 pencil only. •Do not use ink, ballpoint, or felt tip pens. •Make solid marks that fill the circles completely. •Erase cleanly any marks you wish to change. •Make no stray marks on this form. •Do not fold, tear, or mutilate this form. 1. A B C D 2. DO NOT WRITE IN SHADED AREA 3. MASSACHUSETTS COMPREHENSIVE ASSESSMENT SYSTEM Grade 8 Science and Technology/Engineering Practice Test Answer Document School Name: District Name: Last Name of Student: First Name of Student: Marking Instructions •Use a No. 2 pencil only. •Do not use ink, ballpoint, or felt tip pens. •Make solid marks that fill the circles completely. •Erase cleanly any marks you wish to change. •Make no stray marks on this form. •Do not fold, tear, or mutilate this form. 1. A B C D 2. A B C D 3. Page 4 of 4 Page 3 of 4