Science · Grades 3–5
Growing plants: questions and evidence · revision card
Change the factor being tested and keep other relevant conditions as similar as possible.
Keep these ideas clear
Keep comparisons fair
Change the factor being tested and keep other relevant conditions as similar as possible.
Use several plants
One unusually healthy or damaged seedling can mislead a comparison.
Two useful examples
Two groups of similar seedlings receive different amounts of light. What is deliberately changed?
light exposure
light exposure
To test light exposure, which should usually be kept similar?
plant type and watering
plant type and watering
Explain it without looking
- Why record measurements at similar times each day?
Learning preview · teacher review required. Grade bands are approximate, not official curriculum alignment.