Experiment name or topic: _______________________________________________
Date: _______________ Grade level: _______________ Facilitator: _______________
Chemistry concept being investigated (circle one): States of Matter Chemical Reaction Properties Mixtures Acids/Bases Energy/Heat Atomic Structure
Chemicals or substances used:
Equipment used:
Write your question in the form: "What happens to [substance/system] when [variable is changed]?"
Complete this sentence: "I predict that when [action], [substance] will [predicted change] because [prior knowledge]."
Number your steps. Be specific enough that another scholar could repeat this experiment exactly.
| Time/Step | What I Saw (visual change) | What I Measured | Other Senses (smell, sound, temperature) |
|---|---|---|---|
| Before start | |||
| During | |||
| After |
Signs of a chemical change observed (circle any that apply):
Color change Gas produced (bubbles) Heat released or absorbed Light produced Precipitate formed Odor change Irreversible change
This is most likely a: (circle one)
Physical change (substance stays the same, form changes)
Chemical change (new substance formed)
My evidence for this classification:
Describe what you think is happening at the particle level during this reaction. What bonds might be breaking or forming?
Did your results support your hypothesis? Use "My data shows..." to begin your conclusion. State whether your hypothesis was supported or contradicted and explain why.
Name one thing that could have affected your results that you could not control (temperature of room, measurement precision, purity of materials). How might you control for it next time?
Name one real-world application of the chemical principle you observed today. Where does this chemistry happen outside of a laboratory?