Chemical Reaction Evidence Simulator

G8 Cycle 7 Week 1: Evidence of Chemical Reactions

How to Use This Simulation
  1. Adjust the controls to change simulation variables
  2. Click Start to run Chemical Reaction Evidence Simulator - G8 C7 W1
  3. Observe the results in the display area
  4. Click Reset to try different settings
  5. Complete the Predict-Observe-Explain section below

Keyboard: Space/Enter = start/pause · R = reset · Esc = pause

Station 1: Color Change (Phenolphthalein + Base)

Particle View
See bonds breaking/forming

Observation Checklist

  • Color Change observed
  • Gas Production (bubbles) observed
  • Temperature Change observed
  • Precipitate (solid) formed
  • Light Production observed

Evidence Data Table

Station Reaction Evidence Type
1 Phenolphthalein + Base --
2 Baking Soda + Vinegar --
3 CaCl₂ + Water --
4 AgNO₃ + NaCl --
5 Glow Stick Chemicals --

Remember: These are all signs of a chemical reaction - atoms rearranging to form new substances. The total mass before and after is always conserved!

Data Journal — Record & Analyze Your Experiments
# Observation

Predict • Observe • Explain

Predict

Before running the simulation, predict: what do you think will happen to Chemical Reaction Evidence G8 C7 W1 when you change the variables?

Observe

Run the simulation with different settings. Record the patterns and relationships you see.

Explain

Compare your observations with your prediction. Use scientific vocabulary to explain why Chemical Reaction Evidence G8 C7 W1 behaves this way.

Key Concepts

Variables

Changing one variable while controlling others helps us isolate cause and effect in Chemical Reaction Evidence - G8 C7 W1.

Patterns

Look for repeatable patterns in the data — they reveal the underlying scientific principles.

Models

This simulation is a model — a simplified representation that helps us understand Chemical Reaction Evidence - G8 C7 W1.