Plan it like a scientist
A fair test changes one thing, measures one thing, and keeps everything else the same. Use this sheet to plan your own fair test like a scientist.
Q1. Choose one of these questions to plan (or use your own):
- Does a paper plane fly further if the wings are wider?
- Does a plant grow taller with more sunlight?
- Does a ball bounce higher when dropped from higher up?
My question:
Q2. Plan your fair test in the table.
| Part of the plan | My answer |
|---|---|
| The one thing I will CHANGE (variable) | |
| What I will MEASURE | |
| Things I will KEEP THE SAME (controlled variables) |
Q3. Write a prediction. Use the words "I think… because…".
Q4. Swap with a partner. Is their test fair? Did they keep everything the same except one thing? Write one helpful comment.