BrightPath
Change One Thing in a Fair Test
Name:
Date:
Today I am practising: identifying the changed and kept-same conditions
1
Compare how fast two equal ice cubes melt in sun and shade. What changes?
2
Name two things to keep the same in that ice comparison.
3
A child compares a large cube in sun with a tiny cube in shade. Explain why the result is hard to interpret.
4
Plan a paper-towel absorbency comparison. What should change?
5
What amount of water should each towel get? Explain your choice.
6
Draw or describe the two setups and label the one condition that changes.
- Focus on one changed condition rather than formal terminology.
- Have the child identify possible competing explanations.
- Use an adult for handling ice, water, and cleanup.