Leap 2025 Grade 8 Science Practice Test Answer Keys, rubrics, and Scoring Notes for items on the Science Grade 8 Practice Test.

Leap 2025 Grade 8 Science Practice Test Answer Keys, rubrics, and Scoring Notes for items on the Science Grade 8 Practice Test. Science Grade 8 Practice Test Answer Key GRADE 8 PRACTICE TEST ANSWER KEY 1 This document contains the answer keys, rubrics, and Scoring Notes for items on the Science Grade 8 Practice Test. Additional Practice Test resources are available in the LDOE Practice Test Library. Session Set Sequence Item Type Key Point Value Alignment 1 Opal 1 TEI See Rubric 1 PE: 8-MS-ESS3-1 DCI: MS.ESS3A.a CCC: Cause and Effect 1 2 TEI See Rubric 1 PE: 8-MS-ESS3-3 DCI: MS.ESS3C.a CCC: Cause and Effect 1 3 TPD: MS/ MC A, C/C 2 PE: 8-MS-ESS3-1 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ESS3A.a CCC: Cause and Effect 1 4 CR See Rubric 2 PE: 8-MS-ESS3-3 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ESS3C.a CCC: Cause and Effect 1 Glowing Jellyfish 5 MC C 1 PE: 8-MS-LS3-1 DCI: MS.LS4C.a CCC: Cause and Effect 1 6 TEI See Rubric 2 PE: 8-MS-LS3-1 SEP: 2. Developing and using models DCI: MS.LS3A.a CCC: Cause and Effect 1 7 MC A 1 PE: 8-MS-LS4-6 DCI: MS.LS4C.a CCC: Cause and Effect 1 8 CR See Rubric 2 PE: 8-MS-LS4-6 SEP: 5. Using mathematics and computational thinking DCI: MS.LS4C.a CCC: Structure and Function 1 Solar Cooker 9 MS B, D 1 PE: 8-MS-PS3-3 DCI: MS.PS3B.c CCC: Energy and Matter 1 10 MC D 1 PE: 8-MS-PS3-3 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: ETS.MS.1B.a CCC: Energy and Matter 1 11 TEI See Rubric 2 PE: 8-MS-PS3-5 SEP: 7. Engaging in argument from evidence DCI: MS.PS3B.a CCC: Energy and Matter Science Grade 8 Practice Test Answer Key GRADE 8 PRACTICE TEST ANSWER KEY 2 Session Set Sequence Item Type Key Point Value Alignment 1 Solar Cooker 12 CR See Rubric 2 PE: 8-MS-PS3-3 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ETS1A.a CCC: Energy and Matter 1 Standalone Items 13 MS A, E 1 PE: 8-MS-ESS2-3 SEP: 4. Analyzing and interpreting data DCI: MS.ESS2B.a 1 14 TPD: MS/ MC A, D/ B 2 PE: 8-MS-LS4-2 DCI: MS.LS4A.b CCC: Patterns 1 15 TPD: MC/ MC B/C 2 PE: 8-MS-ESS1-4 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ESS1C.a CCC: Scale, Proportion and Quantity 2 Tsunamis and the Louisiana Coast 16 MS B, C, E 1 PE: 8-MS-ESS3-2 SEP: 4. Analyzing and interpreting data DCI: MS.ESS3B.a 2 17 TPD: MC/ MS D/ B, D 2 PE: 8-MS-ESS3-2 DCI: MS.ESS3B.a CCC: Patterns 2 18 MC B 1 PE: 8-MS-ESS2-1 DCI: MS.ESS2A.a CCC: Stability and Change 2 19 TPD: MC/ MS C/ B, C, E 2 PE: 8-MS-ESS2-1 SEP: 2. Developing and using models DCI: MS.ESS2A.a 2 20 ER See Rubric 9 PE: 8-MS-ESS3-2 SEP: 4. Analyzing and interpreting data DCI: MS.ESS3B.a CCC: Patterns 2 Standalone Items 21 MC B 1 PE: 8-MS-LS1-4 SEP: 7. Engaging in argument from evidence DCI: MS.LS1B.c CCC: Cause and Effect 2 22 TPD: MC/ TEI See Rubric 2 PE: 8-MS-PS1-6 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.PS1B.c 2 23 TPD: TEI/ MC See Rubric 2 PE: 8-MS-LS4-3 DCI: MS.LS4A.c CCC: Patterns 3 Nitinol 24 MC D 1 PE: 8-MS-PS1-3 DCI: MS.PS1A.b CCC: Structure and Function Science Grade 8 Practice Test Answer Key GRADE 8 PRACTICE TEST ANSWER KEY 3 Session Set Sequence Item Type Key Point Value Alignment 3 Nitinol 25 TEI See Rubric 2 PE: 8-MS-PS1-1 SEP: 2. Developing and using models DCI: MS.PS1A.e CCC: Scale, Proportion and Quantity 3 26 MS B, E 1 PE: 8-MS-PS1-3 DCI: MS.PS1A.b CCC: Structure and Function 3 27 CR See Rubric 2 PE: 8-MS-PS1-1 SEP: 2. Developing and using models DCI: MS.PS1A.e CCC: Scale, Proportion and Quantity 3 Surviving in Desert Landscapes 28 MC D 1 PE: 8-MS-LS1-5 DCI: MS.LS1B.e CCC: Cause and Effect 3 29 MC B 1 PE: 8-MS-LS1-4 DCI: MS.LS1B.d CCC: Cause and Effect 3 30 TEI See Rubric 2 PE: 8-MS-LS1-5 DCI: MS.LS1B.e CCC: Cause and Effect 3 31 TPD: TEI/ MS See Rubric 2 PE: 8-MS-LS1-5 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.LS1B.e CCC: Cause and Effect 3 Standalone Items 32 MC D 1 PE: 8-MS-LS4-1 SEP: 4. Analyzing and interpreting data DCI: MS.LS4A.a CCC: Patterns 3 33 MC D 1 PE: 8-MS-ESS1-4 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ESS1C.c CCC: Scale, Proportion and Quantity 3 34 TEI See Rubric 1 PE: 8-MS-PS1-6 DCI: MS.PS1B.c CCC: Energy and Matter 3 35 TPI: TEI/ TEI See Rubric 2 PE: 8-MS-ESS2-3 SEP: 4. Analyzing and interpreting data DCI: MS.ESS1C.c CCC: Patterns 3 36 MS B, D, E 1 PE: 8-MS-ESS2-2 DCI: MS.ESS2A.b CCC: Scale, Proportion and Quantity 3 37 MS C, D, F 1 PE: 8-MS-ESS3-2 SEP: 4. Analyzing and interpreting data DCI: MS.ESS3B.a CCC: Patterns Science Grade 8 Practice Test Answer Key GRADE 8 PRACTICE TEST ANSWER KEY 4 Session Set Sequence Item Type Key Point Value Alignment 3 Standalone Items 38 TEI See Rubric 1 PE: 8-MS-PS3-3 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.PS3B.c 3 39 TPD: MC/ MC C/C 2 PE: 8-MS-LS4-1 SEP: 4. Analyzing and interpreting data DCI: MS.LS4A.a CCC: Patterns 3 40 TEI See Rubric 1 PE: 8-MS-ESS3-1 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.ESS3A.a CCC: Cause and Effect 3 41 MS A, E, F 1 PE: 8-MS-LS1-5 SEP: 6. Constructing explanations (for science) and designing solutions (for engineering) DCI: MS.LS1B.e CCC: Cause and Effect Science Grade 8 Practice Test Answer Key GRADE 8 PRACTICE TEST ANSWER KEY 5 Item Types and Scoring:  Multiple-choice (MC) questions with four answer options and only one correct answer. All MC items are worth one point each. Multiple-select (MS) questions with five to seven answer options and more than one correct answer. For MS items, the question identifies the number of correct answers, unless it is part of a Two-part Dependent (TPD). In a TPD, the question in Part B will then be worded to “select all that apply.” All MS items are worth one point each.  Technology Enhanced Items (TEI): uses technology to capture student comprehension in authentic ways. TE items are worth up to two points and may include item types such as, but not limited to, drag and drop, dropdown menus, and hot spots.  Two-part Items: require students to answer two related questions, worth a total of two points. Two-part items may combine MC, MS, and/or TE item types. o Two-part Dependent (TPD): the first part must be correct in order to earn credit for the second part. TPDs are scored as follows:  If both parts are correct, score is 2.  If Part A is correct and Part B is incorrect or partially correct, score is 1.  If Part A is incorrect, score is 0 regardless of Part B. o Two-part Independent (TPI): each part is scored independently, with each part worth one point.  Constructed Response (CR): requires a brief response provided by the student and will be scored using a 2-point rubric. These items may require a brief paragraph, a few sentences, and/or completion of a chart.  Extended Response (ER): asks students to write an in-depth response that expresses the students’ ability to apply all three dimensions of the LSS for Science and will be scored using a 9-point rubric.