---
title: Fast Changes to Earth
created: '2026-05-26'
updated: '2026-05-26'
type: lesson_topic
subject: science
tags:
- science
- grade-2
- homeschool
- ngss
standard: 2-ESS2, 2-ESS3
phase: 3
phase_name: 'SPRING: Earth Science and Diversity of Life (Weeks 21-30)'
weeks:
- 26
source: ''
---

# Fast Changes to Earth

Second grade science topic covering fast changes to earth. Part of Phase 3 (SPRING: Earth Science and Diversity of Life (Weeks 21-30)).

## Key Concepts
Sudden geological events
- **Objectives:** Identify volcanoes, earthquakes, landslides
- **Activities:**
  - Volcano model (baking soda/vinegar)
  - Earthquake shake table demonstration
  - Research famous geological events (age-appropriate)
- **Assessment:** Fast vs. slow changes comparison

### Week 27: Rocks and Soil
**Focus:** Earth materials
- **Objectives:** Identify different rock types and soil components
- **Activities:**
  - Rock collection and sorting
  - Soil investigation (sieve soil, observe components)
  - Rock hardness testing
- **Assessment:** Rock/soil collection with labels

### Week 28: Diversity of Plants
**Focus:** Plant variety in different places
- **Objectives:** Compare plants from different habitats
- **Activities:**
  - Research plants from different climates
  - Create plant comparison charts
  - Discuss adaptations (cactus, rainforest plants, etc.)
- **Assessment:** Plant diversity poster

### Week 29: Diversity of Animals
**Focus:** Animal variety and adaptations
- **Objectives:** Compare animals from different habitats
- **Activities:**
  - Animal adaptation matching game
  - Research interesting animal facts
  - Create animal habitat cards
- **Assessment:** Animal adaptation presentation

### Week 30: Patterns in Nature
**Focus:** Observing and describing patterns
- **Objectives:** Identify patterns in the natural world
- **Activities:**
  - Nature walk pattern hunt
  - Document patterns (leaf arrangements, animal stripes, etc.)
  - Create pattern art from nature
- **Assessment:** Nature pattern journal

---

## Standards
2-ESS2, 2-ESS3

## Prerequisites
[[plant-needs-experiment-results]], [[introduction-to-habitats]], [[land-habitats]], [[water-habitats]], [[ecosystems-and-interdependence]]

## Related Topics
[[water-on-earth]], [[the-water-cycle]], [[weather-vs-climate]], [[slow-changes-to-earth]], [[more-erosion-and-weathering]]

---
*Generated from curriculum data*  ^[[raw/curriculum/science]]