3rd Grade Science Lesson

Adaptations & Survival: How Living Things Fit Their World

Shared by A STEM Educator

3rd Grade5e-learning-cycle3-LS4-2, 3-LS4-3, 3-LS3-245 min

Learning Objective

Students will be able to identify physical adaptations of animals and plants, explain how those adaptations help organisms survive in specific environments, and apply this understanding to predict survival outcomes when environmental conditions change.

Lesson Overview

Students explore how physical traits help animals and plants survive in their environments, connecting to the real-world context of designing camouflaged gear for wildlife researchers observing desert animals. Students move from matching traits to biomes, through hands-on investigation, to predicting survival outcomes using population data.

Materials

Arctic fox photos (white winter coat vs. brown summer coat) — printed or projected
Animal Trait Sorting Cards (one set per pair)
Biome Habitat Cards (Desert, Arctic, Rainforest, Pond)
Fabric swatches in 4 colors: tan/sand, dark brown, bright orange, white
Plain white paper plates (1 per student — simulates desert sand background)
Colored pencils or markers
Dried beans or small counters (50 per group — simulate 'prey' on sand background)
Stopwatch or timer
Recording sheet (predator simulation data table)
Projector or whiteboard
Sticky notes (2 per student)
Camouflage Gear Design worksheet
Desert Animal Population Data cards (for ceiling task)
Exit slip paper

Scaffolded Task Progression

1Task 1

Look at the two arctic fox photos your teacher is showing. In your science notebook, write: (1) ONE thing you notice about how each coat matches its background, and (2) ONE question you have about WHY the coat changes. Be ready to share your question with the class.

[ Interactive graph / diagram — available in the full lesson ]

2Task 2

Bean Hunt Lab — Follow your lab blueprint. After completing 3 trials, answer these questions on your recording sheet:
1. Which bean color was picked up MOST? Which was picked up LEAST?
2. If the paper plate were a real sandy desert, which color animal would survive the longest? Why?
3. What does this tell you about why many desert animals are tan or sand-colored?

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