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Biomes: Earth’s Major Ecosystems

Twelfth graders explore the world’s biomes — large regions defined by their climate and characteristic life, from tropical rainforests to frozen tundra — and how temperature and precipitation shape which organisms can live where.

Grade 12Biomes55 minutes1 class period5E ModelExplicit teaching4 StandardsNGSS
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Lesson at a Glance

Everything you need before the bell rings

Learning Objectives

Students will be able to…

  • ✓Identify major biomes.
  • ✓Relate biomes to climate.
  • ✓Explain characteristic adaptations.
  • ✓Match biomes to features.
Essential Question

Why is the Amazon a lush rainforest, the Sahara a barren desert, and the Arctic a frozen tundra? Climate — mostly temperature and rainfall — shapes each region’s life into a biome.

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Lesson Phases
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Vocabulary Terms
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Standards Aligned
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Interactive Task
Match It · Interactive

Match the Biome

Project this and match each biome to its key feature — tap a biome, then tap what defines it.

🌍 Match each biome to its key featureTry it
Biome
Key Feature
Tap a biome, then tap its feature!
The Lesson · 5E Instructional Model (Engage · Explore · Explain · Elaborate · Evaluate)

55 minutes, five moves

Tap any phase to open the teacher moves and student actions.

1

Engage — Rainforest to Tundra

5 min

Why lush rainforest here, frozen tundra there? What shapes it?

👩‍🏫 Teacher Moves

  • Show contrasting biomes.
  • Ask what causes the difference.
  • Pose the question.

🎒 Student Actions

  • See the biomes.
  • Wonder the cause.
  • Predict climate.
2

Explore — Explore Biomes

12 min

Students investigate.

👩‍🏫 Teacher Moves

  • Send students to Match the Biome.
  • Note each feature.
  • Note the climate link.

🎒 Student Actions

  • Match them.
  • Note features.
  • Note climate.
3

Explain — Climate & Life

13 min

Students explain.

👩‍🏫 Teacher Moves

  • Explain what a biome is.
  • Relate temperature and rainfall.
  • Explain adaptations.

🎒 Student Actions

  • Explain biomes.
  • Relate climate.
  • Explain adaptations.
4

Elaborate — Biomes in Depth

15 min

Students elaborate.

👩‍🏫 Teacher Moves

  • Compare two biomes.
  • Explain an adaptation.
  • Locate biomes on a map.

🎒 Student Actions

  • Compare them.
  • Explain one.
  • Map them.
5

Evaluate — Evaluate

5 min

Students conclude.

👩‍🏫 Teacher Moves

  • Identify a biome.
  • Explain its climate.
  • Hand out the exit ticket.

🎒 Student Actions

  • Identify it.
  • Explain climate.
  • Complete the exit ticket.
Standards Alignment

Built to the standards you report on

Aligned to the Next Generation Science Standards (High School Earth & Environmental Science).

NGSS
HS-LS2-1

Analyze factors that affect carrying capacity of ecosystems.

NGSS
HS-LS2-2

Explain biodiversity across ecosystems.

NGSS
HS-ESS2-4

Explain how climate shapes Earth’s systems.

NGSS
SEP-2

Developing and using models.

Differentiation

One lesson, every learner

Multilingual Learners

ELL / EMERGING READERS
  • Biome + climate cards.
  • Sentence frame: “The ___ is hot/cold and wet/dry.”
  • Use a world biome map.

Support & Access

IEP / 504
  • Start with two contrasting biomes.
  • Match one pair at a time.
  • Use pictures.

Stretch & Extend

GIFTED / EARLY FINISHERS
  • Read a climatograph.
  • Explain a biome adaptation in depth.
  • Predict a biome from climate data.
Materials

What to gather

  • 📽️Projector / board
  • 🌍A world biome map
  • 💻Match the Biome
  • 📊Climatographs
  • ✏️Pencils
  • 🎫Exit-ticket slips
Vocabulary

Key terms — hover for a quick definition

biomea large region defined by climate and lifeclimatelong-term weather patternsprecipitationrain, snow, and other moisturetundraa cold, treeless biomerainforesta hot, wet, diverse biomedeserta very dry biomegrasslanda grass-dominated biomeadaptationa trait suited to the environment
Evaluate

Exit Ticket

Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.

QUESTION 1
What two climate factors most determine a biome?
Temperature and precipitation (rainfall).
QUESTION 2
Which biome is the most biodiverse on Earth?
The tropical rainforest.
QUESTION 3
What defines the tundra biome?
Cold temperatures, no trees, and permanently frozen ground (permafrost).

Elaborate: read a climatograph.

Have students use a climatograph (a graph of temperature and rainfall) to identify which biome a location belongs to. A printable biomes sheet is in the Science library.

Study · Flashcards

Study the key terms

Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.

🃏 BiomesFlip
Card 1
Term
Tap to flip →
Meaning
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Practice · Quiz

Check your understanding

A quick self-check with instant feedback, drawn from this lesson’s key terms.

📝 BiomesQuiz
Score: 0
1 / 6
Question 1
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Practice · Worksheet

Printable worksheet

A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.

🖨️ BiomesPrint
Name: ________________________
Date: ____________

Part A · Write the word that matches each meaning

Word bank: adaptation, biome, climate, desert, grassland, precipitation, rainforest, tundra
  1. a large region defined by climate and life
  2. a very dry biome
  3. a grass-dominated biome
  4. long-term weather patterns
  5. a hot, wet, diverse biome
  6. a trait suited to the environment
  7. a cold, treeless biome
  8. rain, snow, and other moisture

Part B · Show what you learned

  1. What two climate factors most determine a biome?
  2. Which biome is the most biodiverse on Earth?
  3. What defines the tundra biome?
Answer key — Part A: 1) biome · 2) desert · 3) grassland · 4) climate · 5) rainforest · 6) adaptation · 7) tundra · 8) precipitation
Part B: 1) Temperature and precipitation (rainfall). 2) The tropical rainforest. 3) Cold temperatures, no trees, and permanently frozen ground (permafrost).