Testable or not
“Do plants grow faster in sunlight?”
Yes, we can test it
In a fair test, what should stay the same?
All things except ONE thing
Fix: “Ice cream good?”
Is ice cream cold or warm?
Is this testable?
Yes or no:
“Which colour do you like best?”
No
If you change only ONE thing, is it fair?
Yes
Fix: “Do plants like water?”
Do plants grow better with more water?
Is this a testable question?
“Does water temperature change how fast sugar melts?”
Yes
In a plant experiment, you change sunlight. What should stay the same?
Water, soil, pot, plant type
Fix: “Which drink is best?”
Which drink is the sweetest?
Which is testable?
A) “What is your favourite food?”
B) “Does ice melt faster in warm or cold water?
B
Fair or not fair?
Different pots, water, sunlight
Not Fair
Fix: “Do kids run fast?”
Do kids run faster on grass or on sand?
Explain why this is NOT testable:
“Which superhero is the strongest?”
No real way to measure superheroes
Why is this NOT fair?
Dropping balls from different heights
Height is different, so test is not fair
Fix: “Is hot or cold better?”
Does hot or cold water melt ice faster?