Fair Tests and Controlled Variables Worksheet for Grade 3
Grade 3 fair tests and controlled variables worksheet with five original tasks, matching answers, and teacher guidance. Print on Letter or A4, or save as PDF from the print window.
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Page layout
0 practice pages · 0 answer pages. Pages are added automatically when needed. Question content and answer keys stay together.
Ready to teach
Ages 8-9 · About 25 minutes · Independent practice
- What students will do
- Use trial data to compare ramp heights and identify controlled variables.
- Age and response support
- Read the model first; use short evidence-based answers. Offer oral rehearsal before writing if needed.
- Before assigning
- Print the student pages and keep the answer key separate. No additional equipment is required.
- Materials
- Pencil
Continue this learning sequence
Unit goals and teaching guide →Independent activity · About 25 minutes · Pencil
About this practice
Grade 3 · Science · Matching answer key included · US Letter and A4
Choose “Save as PDF” in your browser’s print window to keep a copy.
Teaching guide, sample answers and curriculum references
Before you begin
Read or listen to the short model before answering.
How to use this worksheet
- Which condition changes between the two sets of trials?
- What is the middle distance when the low-ramp results are ordered?
- A student changes both the car and the ramp height. Why is the comparison harder to interpret?
A common mistake to discuss
Either change could affect distance, so the effect of height cannot be separated.
What to practice next
Create a new example that meets the same learning goal.
Published 2026-10-23; updated 2026-10-23. Read our editorial policy.
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