Overview of the 4th Grade Life Science: Ecosystems Unit
This free 4th Grade Life Science course curriculum with 17 lessons from Science Matters focuses on ecosystems, aligning with state science standards. Through a series of structured investigations, hands-on experiments, and assessments, students explore how living organisms interact with each other and their physical environment. Pre-, post-, and three formative evaluations are included. Also freely available are Life Science Course for Grade 5: Exploring Transport Systems in Animals and Plants and Mr. Q’s Free Life Science Course with 9 Units & 36 Lessons, Grades 3-6.
Core Conceptual Flow
- Ecosystem Components: Students begin by examining school grounds to identify biotic (living) and abiotic (non-living) components, studying how these factors interact within a local plot and across global biomes.
- Needs and Adaptations: The curriculum addresses the fundamental resources required for survival—food, water, shelter, and space—and examines how specific physical and behavioral adaptations provide organisms with advantages in their environments.
- Matter Cycles and Energy Flows: Students trace the flow of energy and the cycling of matter through food chains and food webs, exploring the roles of producers, consumers, and decomposers through hands-on activities like worm composting and microscope observations.
- Ecological Balance and Human Impact: The unit concludes by evaluating how natural events and human actions can positively or negatively alter the delicate balance within an ecosystem.
Overall, the unit provides a comprehensive, inquiry-based framework that builds student understanding from local observations to complex ecological systems.
Life Science Course Downloads
The Life Science curriculum is available as a complete download of all Life Science course lessons (zip file, 59mb), or you can download the lessons and assessments separately below .
| Introduction and Conceptual Flow Narrative | Download PDF | |
| Conceptual Flow Graphic | Download PDF | |
| Pre-Assessment | A (Assessment File) | Download PDF |
| Lesson 1 School Walk Around | 4.1 | Download zip (3 PDF’s) |
| Lesson 2 Plot Study | 4.2 | Download PDF |
| Lesson 3 Biomes | 4.3 | Download zip (7 Files) |
| Formative Assessment #1 | B (Assessment File) | Download PDF |
| Lesson 4 Basic Needs | 4.4 | Download PDF |
| Lesson 5 Oh Heron! | 4.5 | Download PDF |
| Lesson 6 Sniff This! | 4.6 | Download zip (3 PDF’s) |
| Lesson 7 Blubber Gloves | 4.7 | Download PDF |
| Lesson 8 Seed Adaptations for Dispersal | 4.8 | Download PDF |
| Lesson 9 Lotusland | 4.9 | Download PDF |
| Formative Assessment #2 | C (Assessment File) | Download PDF |
| Lesson 10 Food Chains | 4.1 | Download zip (2 PDF’s) |
| Lesson 11 Crawly Composters | 4.11 | Download PDF |
| Lesson 12 Mighty Microorganisms | 4.12 | Download PDF |
| Lesson 13 Matter Cycles-Sum it Up | 4.13 | Download PDF |
| Lesson 14 Energy Flows | 4.14 | Download PDF |
| Lesson 15 Food Web | 4.15 | Download zip (2 PDF’s) |
| Formative Assessment #3 | D (Assessment File) | Download PDF |
| Lesson 16 That’s An Otter Story | 4.16 | Download PDF |
| Lesson 17 Channel Island Outreach | 4.17 | Download PDF |
| Post-Assessment | E (Assessment File) | Download PDF |
Conceptual Flow Narrative for Life Science: Ecosystems
This conceptual flow diagram expands on the course ideas covered in each session as well as the relationships that connect them. Using a narrative, current lessons are linked to the prior lesson and the upcoming lesson to allow for the growth of student knowledge as they advance from one topic to the next.
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